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Copy forward ReleaseNotes and ChangeLogs for today's releases
This commit is contained in:
Nick Mathewson
parent
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commit
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181
ChangeLog
181
ChangeLog
@ -165,6 +165,187 @@ Changes in version 0.4.6.1-alpha - 2021-03-18
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for now.) Closes ticket 40282.
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Changes in version 0.3.5.14 - 2021-03-16
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Tor 0.3.5.14 backports fixes for two important denial-of-service bugs
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in earlier versions of Tor.
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One of these vulnerabilities (TROVE-2021-001) would allow an attacker
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who can send directory data to a Tor instance to force that Tor
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instance to consume huge amounts of CPU. This is easiest to exploit
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against authorities, since anybody can upload to them, but directory
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caches could also exploit this vulnerability against relays or clients
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when they download. The other vulnerability (TROVE-2021-002) only
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affects directory authorities, and would allow an attacker to remotely
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crash the authority with an assertion failure. Patches have already
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been provided to the authority operators, to help ensure
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network stability.
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We recommend that everybody upgrade to one of the releases that fixes
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these issues (0.3.5.14, 0.4.4.8, or 0.4.5.7) as they become available
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to you.
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This release also updates our GeoIP data source, and fixes a
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compatibility issue.
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o Major bugfixes (security, denial of service, backport from 0.4.5.7):
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- Disable the dump_desc() function that we used to dump unparseable
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information to disk. It was called incorrectly in several places,
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in a way that could lead to excessive CPU usage. Fixes bug 40286;
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bugfix on 0.2.2.1-alpha. This bug is also tracked as TROVE-2021-
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001 and CVE-2021-28089.
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- Fix a bug in appending detached signatures to a pending consensus
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document that could be used to crash a directory authority. Fixes
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bug 40316; bugfix on 0.2.2.6-alpha. Tracked as TROVE-2021-002
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and CVE-2021-28090.
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o Minor features (geoip data, backport from 0.4.5.7):
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- We have switched geoip data sources. Previously we shipped IP-to-
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country mappings from Maxmind's GeoLite2, but in 2019 they changed
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their licensing terms, so we were unable to update them after that
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point. We now ship geoip files based on the IPFire Location
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Database instead. (See https://location.ipfire.org/ for more
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information). This release updates our geoip files to match the
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IPFire Location Database as retrieved on 2021/03/12. Closes
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ticket 40224.
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o Removed features (mallinfo deprecated, backport from 0.4.5.7):
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- Remove mallinfo() usage entirely. Libc 2.33+ now deprecates it.
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Closes ticket 40309.
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Changes in version 0.4.4.8 - 2021-03-16
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Tor 0.4.4.8 backports fixes for two important denial-of-service bugs
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in earlier versions of Tor.
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One of these vulnerabilities (TROVE-2021-001) would allow an attacker
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who can send directory data to a Tor instance to force that Tor
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instance to consume huge amounts of CPU. This is easiest to exploit
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against authorities, since anybody can upload to them, but directory
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caches could also exploit this vulnerability against relays or clients
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when they download. The other vulnerability (TROVE-2021-002) only
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affects directory authorities, and would allow an attacker to remotely
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crash the authority with an assertion failure. Patches have already
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been provided to the authority operators, to help ensure
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network stability.
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We recommend that everybody upgrade to one of the releases that fixes
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these issues (0.3.5.14, 0.4.4.8, or 0.4.5.7) as they become available
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to you.
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This release also updates our GeoIP data source, and fixes a
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compatibility issue.
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o Major bugfixes (security, denial of service, backport from 0.4.5.7):
|
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- Disable the dump_desc() function that we used to dump unparseable
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information to disk. It was called incorrectly in several places,
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in a way that could lead to excessive CPU usage. Fixes bug 40286;
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bugfix on 0.2.2.1-alpha. This bug is also tracked as TROVE-2021-
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001 and CVE-2021-28089.
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- Fix a bug in appending detached signatures to a pending consensus
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document that could be used to crash a directory authority. Fixes
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bug 40316; bugfix on 0.2.2.6-alpha. Tracked as TROVE-2021-002
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and CVE-2021-28090.
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o Minor features (geoip data, backport from 0.4.5.7):
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- We have switched geoip data sources. Previously we shipped IP-to-
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country mappings from Maxmind's GeoLite2, but in 2019 they changed
|
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their licensing terms, so we were unable to update them after that
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point. We now ship geoip files based on the IPFire Location
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Database instead. (See https://location.ipfire.org/ for more
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information). This release updates our geoip files to match the
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IPFire Location Database as retrieved on 2021/03/12. Closes
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ticket 40224.
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o Removed features (mallinfo deprecated, backport from 0.4.5.7):
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- Remove mallinfo() usage entirely. Libc 2.33+ now deprecates it.
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Closes ticket 40309.
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Changes in version 0.4.5.7 - 2021-03-16
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Tor 0.4.5.7 fixes two important denial-of-service bugs in earlier
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versions of Tor.
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|
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One of these vulnerabilities (TROVE-2021-001) would allow an attacker
|
||||
who can send directory data to a Tor instance to force that Tor
|
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instance to consume huge amounts of CPU. This is easiest to exploit
|
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against authorities, since anybody can upload to them, but directory
|
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caches could also exploit this vulnerability against relays or clients
|
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when they download. The other vulnerability (TROVE-2021-002) only
|
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affects directory authorities, and would allow an attacker to remotely
|
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crash the authority with an assertion failure. Patches have already
|
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been provided to the authority operators, to help ensure
|
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network stability.
|
||||
|
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We recommend that everybody upgrade to one of the releases that fixes
|
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these issues (0.3.5.14, 0.4.4.8, or 0.4.5.7) as they become available
|
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to you.
|
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|
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This release also updates our GeoIP data source, and fixes a few
|
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smaller bugs in earlier releases.
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|
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o Major bugfixes (security, denial of service):
|
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- Disable the dump_desc() function that we used to dump unparseable
|
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information to disk. It was called incorrectly in several places,
|
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in a way that could lead to excessive CPU usage. Fixes bug 40286;
|
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bugfix on 0.2.2.1-alpha. This bug is also tracked as TROVE-2021-
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001 and CVE-2021-28089.
|
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- Fix a bug in appending detached signatures to a pending consensus
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document that could be used to crash a directory authority. Fixes
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bug 40316; bugfix on 0.2.2.6-alpha. Tracked as TROVE-2021-002
|
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and CVE-2021-28090.
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|
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o Minor features (geoip data):
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- We have switched geoip data sources. Previously we shipped IP-to-
|
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country mappings from Maxmind's GeoLite2, but in 2019 they changed
|
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their licensing terms, so we were unable to update them after that
|
||||
point. We now ship geoip files based on the IPFire Location
|
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Database instead. (See https://location.ipfire.org/ for more
|
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information). This release updates our geoip files to match the
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IPFire Location Database as retrieved on 2021/03/12. Closes
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ticket 40224.
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o Minor bugfixes (directory authority):
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- Now that exit relays don't allow exit connections to directory
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authority DirPorts (to prevent network reentry), disable
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authorities' reachability self test on the DirPort. Fixes bug
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40287; bugfix on 0.4.5.5-rc.
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o Minor bugfixes (documentation):
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- Fix a formatting error in the documentation for
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VirtualAddrNetworkIPv6. Fixes bug 40256; bugfix on 0.2.9.4-alpha.
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o Minor bugfixes (Linux, relay):
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- Fix a bug in determining total available system memory that would
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have been triggered if the format of Linux's /proc/meminfo file
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had ever changed to include "MemTotal:" in the middle of a line.
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Fixes bug 40315; bugfix on 0.2.5.4-alpha.
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o Minor bugfixes (metrics port):
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- Fix a BUG() warning on the MetricsPort for an internal missing
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handler. Fixes bug 40295; bugfix on 0.4.5.1-alpha.
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o Minor bugfixes (onion service):
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- Remove a harmless BUG() warning when reloading tor configured with
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onion services. Fixes bug 40334; bugfix on 0.4.5.1-alpha.
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o Minor bugfixes (portability):
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- Fix a non-portable usage of "==" with "test" in the configure
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script. Fixes bug 40298; bugfix on 0.4.5.1-alpha.
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o Minor bugfixes (relay):
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- Remove a spammy log notice falsely claiming that the IPv4/v6
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address was missing. Fixes bug 40300; bugfix on 0.4.5.1-alpha.
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- Do not query the address cache early in the boot process when
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deciding if a relay needs to fetch early directory information
|
||||
from an authority. This bug resulted in a relay falsely believing
|
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it didn't have an address and thus triggering an authority fetch
|
||||
at each boot. Related to our fix for 40300.
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||||
|
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o Removed features (mallinfo deprecated):
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- Remove mallinfo() usage entirely. Libc 2.33+ now deprecates it.
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Closes ticket 40309.
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Changes in version 0.4.5.6 - 2021-02-15
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The Tor 0.4.5.x release series is dedicated to the memory of Karsten
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Loesing (1979-2020), Tor developer, cypherpunk, husband, and father.
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180
ReleaseNotes
180
ReleaseNotes
@ -2,6 +2,186 @@ This document summarizes new features and bugfixes in each stable
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release of Tor. If you want to see more detailed descriptions of the
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changes in each development snapshot, see the ChangeLog file.
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Changes in version 0.3.5.14 - 2021-03-16
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Tor 0.3.5.14 backports fixes for two important denial-of-service bugs
|
||||
in earlier versions of Tor.
|
||||
|
||||
One of these vulnerabilities (TROVE-2021-001) would allow an attacker
|
||||
who can send directory data to a Tor instance to force that Tor
|
||||
instance to consume huge amounts of CPU. This is easiest to exploit
|
||||
against authorities, since anybody can upload to them, but directory
|
||||
caches could also exploit this vulnerability against relays or clients
|
||||
when they download. The other vulnerability (TROVE-2021-002) only
|
||||
affects directory authorities, and would allow an attacker to remotely
|
||||
crash the authority with an assertion failure. Patches have already
|
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been provided to the authority operators, to help ensure
|
||||
network stability.
|
||||
|
||||
We recommend that everybody upgrade to one of the releases that fixes
|
||||
these issues (0.3.5.14, 0.4.4.8, or 0.4.5.7) as they become available
|
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to you.
|
||||
|
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This release also updates our GeoIP data source, and fixes a
|
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compatibility issue.
|
||||
|
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o Major bugfixes (security, denial of service, backport from 0.4.5.7):
|
||||
- Disable the dump_desc() function that we used to dump unparseable
|
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information to disk. It was called incorrectly in several places,
|
||||
in a way that could lead to excessive CPU usage. Fixes bug 40286;
|
||||
bugfix on 0.2.2.1-alpha. This bug is also tracked as TROVE-2021-
|
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001 and CVE-2021-28089.
|
||||
- Fix a bug in appending detached signatures to a pending consensus
|
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document that could be used to crash a directory authority. Fixes
|
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bug 40316; bugfix on 0.2.2.6-alpha. Tracked as TROVE-2021-002
|
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and CVE-2021-28090.
|
||||
|
||||
o Minor features (geoip data, backport from 0.4.5.7):
|
||||
- We have switched geoip data sources. Previously we shipped IP-to-
|
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country mappings from Maxmind's GeoLite2, but in 2019 they changed
|
||||
their licensing terms, so we were unable to update them after that
|
||||
point. We now ship geoip files based on the IPFire Location
|
||||
Database instead. (See https://location.ipfire.org/ for more
|
||||
information). This release updates our geoip files to match the
|
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IPFire Location Database as retrieved on 2021/03/12. Closes
|
||||
ticket 40224.
|
||||
|
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o Removed features (mallinfo deprecated, backport from 0.4.5.7):
|
||||
- Remove mallinfo() usage entirely. Libc 2.33+ now deprecates it.
|
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Closes ticket 40309.
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||||
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Changes in version 0.4.4.8 - 2021-03-16
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Tor 0.4.4.8 backports fixes for two important denial-of-service bugs
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in earlier versions of Tor.
|
||||
|
||||
One of these vulnerabilities (TROVE-2021-001) would allow an attacker
|
||||
who can send directory data to a Tor instance to force that Tor
|
||||
instance to consume huge amounts of CPU. This is easiest to exploit
|
||||
against authorities, since anybody can upload to them, but directory
|
||||
caches could also exploit this vulnerability against relays or clients
|
||||
when they download. The other vulnerability (TROVE-2021-002) only
|
||||
affects directory authorities, and would allow an attacker to remotely
|
||||
crash the authority with an assertion failure. Patches have already
|
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been provided to the authority operators, to help ensure
|
||||
network stability.
|
||||
|
||||
We recommend that everybody upgrade to one of the releases that fixes
|
||||
these issues (0.3.5.14, 0.4.4.8, or 0.4.5.7) as they become available
|
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to you.
|
||||
|
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This release also updates our GeoIP data source, and fixes a
|
||||
compatibility issue.
|
||||
|
||||
o Major bugfixes (security, denial of service, backport from 0.4.5.7):
|
||||
- Disable the dump_desc() function that we used to dump unparseable
|
||||
information to disk. It was called incorrectly in several places,
|
||||
in a way that could lead to excessive CPU usage. Fixes bug 40286;
|
||||
bugfix on 0.2.2.1-alpha. This bug is also tracked as TROVE-2021-
|
||||
001 and CVE-2021-28089.
|
||||
- Fix a bug in appending detached signatures to a pending consensus
|
||||
document that could be used to crash a directory authority. Fixes
|
||||
bug 40316; bugfix on 0.2.2.6-alpha. Tracked as TROVE-2021-002
|
||||
and CVE-2021-28090.
|
||||
|
||||
o Minor features (geoip data, backport from 0.4.5.7):
|
||||
- We have switched geoip data sources. Previously we shipped IP-to-
|
||||
country mappings from Maxmind's GeoLite2, but in 2019 they changed
|
||||
their licensing terms, so we were unable to update them after that
|
||||
point. We now ship geoip files based on the IPFire Location
|
||||
Database instead. (See https://location.ipfire.org/ for more
|
||||
information). This release updates our geoip files to match the
|
||||
IPFire Location Database as retrieved on 2021/03/12. Closes
|
||||
ticket 40224.
|
||||
|
||||
o Removed features (mallinfo deprecated, backport from 0.4.5.7):
|
||||
- Remove mallinfo() usage entirely. Libc 2.33+ now deprecates it.
|
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Closes ticket 40309.
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||||
|
||||
|
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Changes in version 0.4.5.7 - 2021-03-16
|
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Tor 0.4.5.7 fixes two important denial-of-service bugs in earlier
|
||||
versions of Tor.
|
||||
|
||||
One of these vulnerabilities (TROVE-2021-001) would allow an attacker
|
||||
who can send directory data to a Tor instance to force that Tor
|
||||
instance to consume huge amounts of CPU. This is easiest to exploit
|
||||
against authorities, since anybody can upload to them, but directory
|
||||
caches could also exploit this vulnerability against relays or clients
|
||||
when they download. The other vulnerability (TROVE-2021-002) only
|
||||
affects directory authorities, and would allow an attacker to remotely
|
||||
crash the authority with an assertion failure. Patches have already
|
||||
been provided to the authority operators, to help ensure
|
||||
network stability.
|
||||
|
||||
We recommend that everybody upgrade to one of the releases that fixes
|
||||
these issues (0.3.5.14, 0.4.4.8, or 0.4.5.7) as they become available
|
||||
to you.
|
||||
|
||||
This release also updates our GeoIP data source, and fixes a few
|
||||
smaller bugs in earlier releases.
|
||||
|
||||
o Major bugfixes (security, denial of service):
|
||||
- Disable the dump_desc() function that we used to dump unparseable
|
||||
information to disk. It was called incorrectly in several places,
|
||||
in a way that could lead to excessive CPU usage. Fixes bug 40286;
|
||||
bugfix on 0.2.2.1-alpha. This bug is also tracked as TROVE-2021-
|
||||
001 and CVE-2021-28089.
|
||||
- Fix a bug in appending detached signatures to a pending consensus
|
||||
document that could be used to crash a directory authority. Fixes
|
||||
bug 40316; bugfix on 0.2.2.6-alpha. Tracked as TROVE-2021-002
|
||||
and CVE-2021-28090.
|
||||
|
||||
o Minor features (geoip data):
|
||||
- We have switched geoip data sources. Previously we shipped IP-to-
|
||||
country mappings from Maxmind's GeoLite2, but in 2019 they changed
|
||||
their licensing terms, so we were unable to update them after that
|
||||
point. We now ship geoip files based on the IPFire Location
|
||||
Database instead. (See https://location.ipfire.org/ for more
|
||||
information). This release updates our geoip files to match the
|
||||
IPFire Location Database as retrieved on 2021/03/12. Closes
|
||||
ticket 40224.
|
||||
|
||||
o Minor bugfixes (directory authority):
|
||||
- Now that exit relays don't allow exit connections to directory
|
||||
authority DirPorts (to prevent network reentry), disable
|
||||
authorities' reachability self test on the DirPort. Fixes bug
|
||||
40287; bugfix on 0.4.5.5-rc.
|
||||
|
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o Minor bugfixes (documentation):
|
||||
- Fix a formatting error in the documentation for
|
||||
VirtualAddrNetworkIPv6. Fixes bug 40256; bugfix on 0.2.9.4-alpha.
|
||||
|
||||
o Minor bugfixes (Linux, relay):
|
||||
- Fix a bug in determining total available system memory that would
|
||||
have been triggered if the format of Linux's /proc/meminfo file
|
||||
had ever changed to include "MemTotal:" in the middle of a line.
|
||||
Fixes bug 40315; bugfix on 0.2.5.4-alpha.
|
||||
|
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o Minor bugfixes (metrics port):
|
||||
- Fix a BUG() warning on the MetricsPort for an internal missing
|
||||
handler. Fixes bug 40295; bugfix on 0.4.5.1-alpha.
|
||||
|
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o Minor bugfixes (onion service):
|
||||
- Remove a harmless BUG() warning when reloading tor configured with
|
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onion services. Fixes bug 40334; bugfix on 0.4.5.1-alpha.
|
||||
|
||||
o Minor bugfixes (portability):
|
||||
- Fix a non-portable usage of "==" with "test" in the configure
|
||||
script. Fixes bug 40298; bugfix on 0.4.5.1-alpha.
|
||||
|
||||
o Minor bugfixes (relay):
|
||||
- Remove a spammy log notice falsely claiming that the IPv4/v6
|
||||
address was missing. Fixes bug 40300; bugfix on 0.4.5.1-alpha.
|
||||
- Do not query the address cache early in the boot process when
|
||||
deciding if a relay needs to fetch early directory information
|
||||
from an authority. This bug resulted in a relay falsely believing
|
||||
it didn't have an address and thus triggering an authority fetch
|
||||
at each boot. Related to our fix for 40300.
|
||||
|
||||
o Removed features (mallinfo deprecated):
|
||||
- Remove mallinfo() usage entirely. Libc 2.33+ now deprecates it.
|
||||
Closes ticket 40309.
|
||||
|
||||
|
||||
Changes in version 0.4.5.6 - 2021-02-15
|
||||
The Tor 0.4.5.x release series is dedicated to the memory of Karsten
|
||||
|
||||
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