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Begin an 0.2.6.11 changelog
To build this changelog, I've gone through the entries in release-0.2.6's changes subdirectory, and looked up the ChangeLog entry for each. I have not sorted them yet.
This commit is contained in:
Nick Mathewson
parent
48c4bbe9c7
commit
9689b93990
111
ChangeLog
111
ChangeLog
@ -1,3 +1,114 @@
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Changes in version 0.2.6.11 - 2017-03-??
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Tor 0.2.6.11 backports a number of security fixes from later Tor
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releases. Anybody running Tor 0.2.6.10 or earlier should upgrade to
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this release, if for some reason they cannot upgrade to a later
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release series.
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Note that support for Tor 0.2.6.x is ending next year: we will not issue
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any fixes for the Tor 0.2.6.x series after 1 August 2017. If you need
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a Tor release series with longer-term support, we recommend Tor 0.2.9.x.
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o Directory authority changes (backport from 0.2.8.5-rc):
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- Urras is no longer a directory authority. Closes ticket 19271.
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o Directory authority changes (backport from 0.2.9.2-alpha):
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- The "Tonga" bridge authority has been retired; the new bridge
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authority is "Bifroest". Closes tickets 19728 and 19690.
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o Directory authority key updates (backport from 0.2.8.1-alpha):
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- Update the V3 identity key for the dannenberg directory authority:
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it was changed on 18 November 2015. Closes task 17906. Patch
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by "teor".
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o Major bugfixes (dns proxy mode, crash, backport from 0.2.8.2-alpha):
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- Avoid crashing when running as a DNS proxy. Fixes bug 16248;
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bugfix on 0.2.0.1-alpha. Patch from "cypherpunks".
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o Minor features (bug-resistance, backport from 0.2.8.2-alpha):
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- Make Tor survive errors involving connections without a
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corresponding event object. Previously we'd fail with an
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assertion; now we produce a log message. Related to bug 16248.
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o Major bugfixes (security, correctness, backport from 0.2.7.4-rc):
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- Fix an error that could cause us to read 4 bytes before the
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beginning of an openssl string. This bug could be used to cause
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Tor to crash on systems with unusual malloc implementations, or
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systems with unusual hardening installed. Fixes bug 17404; bugfix
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on 0.2.3.6-alpha.
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o Major bugfixes (guard selection, backport from 0.2.7.6):
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- Actually look at the Guard flag when selecting a new directory
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guard. When we implemented the directory guard design, we
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accidentally started treating all relays as if they have the Guard
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flag during guard selection, leading to weaker anonymity and worse
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performance. Fixes bug 17772; bugfix on 0.2.4.8-alpha. Discovered
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by Mohsen Imani.
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o Minor bugfixes (compilation, backport from 0.2.7.6)
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- Fix a compilation warning with Clang 3.6: Do not check the
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presence of an address which can never be NULL. Fixes bug 17781.
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o Minor features (geoip):
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- Update geoip and geoip6 to the February 8 2017 Maxmind GeoLite2
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Country database.
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o Minor features (security, memory erasure, backport from 0.2.8.1-alpha):
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- Make memwipe() do nothing when passed a NULL pointer or buffer of
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zero size. Check size argument to memwipe() for underflow. Fixes
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bug 18089; bugfix on 0.2.3.25 and 0.2.4.6-alpha. Reported by "gk",
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patch by "teor".
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o Major bugfixes (security, pointers, backport from 0.2.8.2-alpha):
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- Avoid a difficult-to-trigger heap corruption attack when extending
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a smartlist to contain over 16GB of pointers. Fixes bug 18162;
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bugfix on 0.1.1.11-alpha, which fixed a related bug incompletely.
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Reported by Guido Vranken.
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o Major bugfixes (security, client, DNS proxy, backport from 0.2.8.3-alpha):
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- Stop a crash that could occur when a client running with DNSPort
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received a query with multiple address types, and the first
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address type was not supported. Found and fixed by Scott Dial.
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Fixes bug 18710; bugfix on 0.2.5.4-alpha.
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o Major features (security fixes, backport from 0.2.9.4-alpha):
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- Prevent a class of security bugs caused by treating the contents
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of a buffer chunk as if they were a NUL-terminated string. At
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least one such bug seems to be present in all currently used
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versions of Tor, and would allow an attacker to remotely crash
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most Tor instances, especially those compiled with extra compiler
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hardening. With this defense in place, such bugs can't crash Tor,
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though we should still fix them as they occur. Closes ticket
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20384 (TROVE-2016-10-001).
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o Major bugfixes (parsing, security, backport from 0.2.9.8):
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- Fix a bug in parsing that could cause clients to read a single
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byte past the end of an allocated region. This bug could be used
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to cause hardened clients (built with --enable-expensive-hardening)
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to crash if they tried to visit a hostile hidden service. Non-
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hardened clients are only affected depending on the details of
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their platform's memory allocator. Fixes bug 21018; bugfix on
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0.2.0.8-alpha. Found by using libFuzzer. Also tracked as TROVE-
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2016-12-002 and as CVE-2016-1254.
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o Major bugfixes (key management, backport from 0.2.8.3-alpha):
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- If OpenSSL fails to generate an RSA key, do not retain a dangling
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pointer to the previous (uninitialized) key value. The impact here
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should be limited to a difficult-to-trigger crash, if OpenSSL is
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running an engine that makes key generation failures possible, or
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if OpenSSL runs out of memory. Fixes bug 19152; bugfix on
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0.2.1.10-alpha. Found by Yuan Jochen Kang, Suman Jana, and
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Baishakhi Ray.
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o Major bugfixes (parsing, also in 0.3.0.4-rc):
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- Fix an integer underflow bug when comparing malformed Tor versions.
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This bug is harmless, except when Tor has been built with
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--enable-expensive-hardening, which would turn it into a crash;
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or on Tor 0.2.9.1-alpha through Tor 0.2.9.8, which were built with
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-ftrapv by default.
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Part of TROVE-2017-001. Fixes bug 21278; bugfix on
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0.0.8pre1. Found by OSS-Fuzz.
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Changes in version 0.2.6.10 - 2015-07-12
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Tor version 0.2.6.10 fixes some significant stability and hidden
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service client bugs, bulletproofs the cryptography init process, and
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@ -1,2 +0,0 @@
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o Directory authority changes:
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- Urras is no longer a directory authority. Closes ticket 19271.
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@ -1,3 +0,0 @@
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o Directory authority changes (also in 0.2.8.7):
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- The "Tonga" bridge authority has been retired; the new bridge
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authority is "Bifroest". Closes tickets 19728 and 19690.
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@ -1,11 +0,0 @@
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o Major features (security fixes):
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- Prevent a class of security bugs caused by treating the contents
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of a buffer chunk as if they were a NUL-terminated string. At
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least one such bug seems to be present in all currently used
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versions of Tor, and would allow an attacker to remotely crash
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most Tor instances, especially those compiled with extra compiler
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hardening. With this defense in place, such bugs can't crash Tor,
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though we should still fix them as they occur. Closes ticket 20384
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(TROVE-2016-10-001).
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@ -1,8 +0,0 @@
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o Major bugfixes (dns proxy mode, crash):
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- Avoid crashing when running as a DNS proxy. Closes bug 16248; bugfix on
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0.2.0.1-alpha. Patch from 'cypherpunks'.
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o Minor features (bug-resistance):
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- Make Tor survive errors involving connections without a corresponding
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event object. Previously we'd fail with an assertion; now we produce a
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log message. Related to bug 16248.
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@ -1,6 +0,0 @@
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o Major bugfixes (security, correctness):
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- Fix a programming error that could cause us to read 4 bytes before
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the beginning of an openssl string. This could be used to provoke
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a crash on systems with an unusual malloc implementation, or
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systems with unsual hardening installed. Fixes bug 17404; bugfix
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on 0.2.3.6-alpha.
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@ -1,7 +0,0 @@
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o Major bugfixes (guard selection):
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- Actually look at the Guard flag when selecting a new directory
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guard. When we implemented the directory guard design, we
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accidentally started treating all relays as if they have the Guard
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flag during guard selection, leading to weaker anonymity and worse
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performance. Fixes bug 17222; bugfix on 0.2.4.8-alpha. Discovered
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by Mohsen Imani.
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@ -1,3 +0,0 @@
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o Compilation fixes:
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- Fix a compilation warning with Clang 3.6: Do not check the
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presence of an address which can never be NULL. Fixes bug 17781.
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@ -1,4 +0,0 @@
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o Minor features (authorities):
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- Update the V3 identity key for dannenberg, it was changed on
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18 November 2015.
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Closes task #17906. Patch by "teor".
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@ -1,6 +0,0 @@
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o Minor fixes (security):
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- Make memwipe() do nothing when passed a NULL pointer
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or zero size. Check size argument to memwipe() for underflow.
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Closes bug #18089. Reported by "gk", patch by "teor".
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Bugfix on 0.2.3.25 and 0.2.4.6-alpha (#7352),
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commit 49dd5ef3 on 7 Nov 2012.
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@ -1,7 +0,0 @@
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o Major bugfixes (security, pointers):
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- Avoid a difficult-to-trigger heap corruption attack when extending
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a smartlist to contain over 16GB of pointers. Fixes bug #18162;
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bugfix on Tor 0.1.1.11-alpha, which fixed a related bug
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incompletely. Reported by Guido Vranken.
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@ -1,6 +0,0 @@
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o Major bugfixes (DNS proxy):
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- Stop a crash that could occur when a client running with DNSPort
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received a query with multiple address types, where the first
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address type was not supported. Found and fixed by Scott Dial.
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Fixes bug 18710; bugfix on 0.2.5.4-alpha.
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@ -1,10 +0,0 @@
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o Major features (security fixes):
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- Prevent a class of security bugs caused by treating the contents
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of a buffer chunk as if they were a NUL-terminated string. At
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least one such bug seems to be present in all currently used
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versions of Tor, and would allow an attacker to remotely crash
|
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most Tor instances, especially those compiled with extra compiler
|
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hardening. With this defense in place, such bugs can't crash Tor,
|
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though we should still fix them as they occur. Closes ticket
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20384 (TROVE-2016-10-001).
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@ -1,11 +0,0 @@
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o Major bugfixes (parsing, security):
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- Fix a bug in parsing that could cause clients to read a single
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byte past the end of an allocated region. This bug could be
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used to cause hardened clients (built with
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--enable-expensive-hardening) to crash if they tried to visit
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a hostile hidden service. Non-hardened clients are only
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affected depending on the details of their platform's memory
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allocator. Fixes bug 21018; bugfix on 0.2.0.8-alpha. Found by
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using libFuzzer. Also tracked as TROVE-2016-12-002 and as
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CVE-2016-1254.
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@ -1,4 +0,0 @@
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o Minor features:
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- Update geoip and geoip6 to the April 5 2016 Maxmind GeoLite2
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Country database.
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@ -1,4 +0,0 @@
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o Minor features:
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- Update geoip and geoip6 to the August 2 2016 Maxmind GeoLite2
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Country database.
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@ -1,4 +0,0 @@
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o Minor features:
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- Update geoip and geoip6 to the December 1 2015 Maxmind GeoLite2
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Country database.
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@ -1,4 +0,0 @@
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o Minor features:
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- Update geoip and geoip6 to the December 7 2016 Maxmind GeoLite2
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Country database.
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@ -1,4 +0,0 @@
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o Minor features:
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- Update geoip and geoip6 to the February 2 2016 Maxmind GeoLite2
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Country database.
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@ -1,4 +0,0 @@
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o Minor features:
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- Update geoip and geoip6 to the February 8 2017 Maxmind GeoLite2
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Country database.
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@ -1,4 +0,0 @@
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o Minor features:
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- Update geoip and geoip6 to the January 5 2016 Maxmind GeoLite2
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Country database.
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@ -1,4 +0,0 @@
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o Minor features:
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- Update geoip and geoip6 to the January 4 2017 Maxmind GeoLite2
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Country database.
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@ -1,3 +0,0 @@
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o Minor features:
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- Update geoip and geoip6 to the July 8 2015 Maxmind GeoLite2 Country database.
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@ -1,4 +0,0 @@
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o Minor features:
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- Update geoip and geoip6 to the July 6 2016 Maxmind GeoLite2
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Country database.
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@ -1,4 +0,0 @@
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o Minor features:
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- Update geoip and geoip6 to the June 7 2016 Maxmind GeoLite2
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Country database.
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@ -1,4 +0,0 @@
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o Minor features:
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- Update geoip and geoip6 to the March 3 2016 Maxmind GeoLite2
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Country database.
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@ -1,4 +0,0 @@
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o Minor features:
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- Update geoip and geoip6 to the May 4 2016 Maxmind GeoLite2
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Country database.
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@ -1,4 +0,0 @@
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o Minor features:
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- Update geoip and geoip6 to the November 3 2016 Maxmind GeoLite2
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Country database.
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@ -1,3 +0,0 @@
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o Minor features:
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- Update geoip and geoip6 to the October 9 2015 Maxmind GeoLite2 Country database.
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@ -1,4 +0,0 @@
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o Minor features:
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- Update geoip and geoip6 to the October 4 2016 Maxmind GeoLite2
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Country database.
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@ -1,3 +0,0 @@
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o Minor features:
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- Update geoip and geoip6 to the September 3 2015 Maxmind GeoLite2 Country database.
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@ -1,4 +0,0 @@
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o Minor features:
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- Update geoip and geoip6 to the September 6 2016 Maxmind GeoLite2
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Country database.
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@ -1,7 +0,0 @@
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o Major bugfixes (key management):
|
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- If OpenSSL fails to generate an RSA key, do not retain a dangling pointer
|
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to the previous (uninitialized) key value. The impact here should be
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limited to a difficult-to-trigger crash, if OpenSSL is running an
|
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engine that makes key generation failures possible, or if OpenSSL runs
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out of memory. Fixes bug 19152; bugfix on 0.2.1.10-alpha. Found by
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Yuan Jochen Kang, Suman Jana, and Baishakhi Ray.
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@ -1,8 +0,0 @@
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o Major bugfixes (parsing):
|
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- Fix an integer underflow bug when comparing malformed Tor versions.
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This bug is harmless, except when Tor has been built with
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--enable-expensive-hardening, which would turn it into a crash;
|
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or on Tor 0.2.9.1-alpha through Tor 0.2.9.8, which were built with
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-ftrapv by default.
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Part of TROVE-2017-001. Fixes bug 21278; bugfix on
|
||||
0.0.8pre1. Found by OSS-Fuzz.
|
||||
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