mirror of
https://gitlab.torproject.org/tpo/core/tor.git
synced 2024-11-10 13:13:44 +01:00
Fix buffer over-reads in the rendcache tests
The hidden service descriptor cache (rendcache) tests use digest maps
which expect keys to have a length of DIGEST_LEN.
Because the tests use key strings with a length lower than DIGEST_LEN,
the internal copy operation reads outside the key strings which leads to
buffer over-reads.
The issue is resolved by using character arrays with a size of
DIGEST_LEN.
Patch on ade5005853
.
This commit is contained in:
parent
3d0d2a511c
commit
c94aa4573a
@ -767,28 +767,31 @@ test_rend_cache_failure_intro_lookup(void *data)
|
||||
rend_cache_failure_t *failure;
|
||||
rend_cache_failure_intro_t *ip;
|
||||
rend_cache_failure_intro_t *entry;
|
||||
const char key_ip_one[DIGEST_LEN] = "ip1";
|
||||
const char key_ip_two[DIGEST_LEN] = "ip2";
|
||||
const char key_foo[DIGEST_LEN] = "foo1";
|
||||
|
||||
rend_cache_init();
|
||||
|
||||
failure = rend_cache_failure_entry_new();
|
||||
ip = rend_cache_failure_intro_entry_new(INTRO_POINT_FAILURE_TIMEOUT);
|
||||
digestmap_set(failure->intro_failures, "ip1", ip);
|
||||
digestmap_set(failure->intro_failures, key_ip_one, ip);
|
||||
strmap_set_lc(rend_cache_failure, "foo1", failure);
|
||||
|
||||
// Test not found
|
||||
ret = cache_failure_intro_lookup((const uint8_t *)"foo1", "foo2", NULL);
|
||||
ret = cache_failure_intro_lookup((const uint8_t *) key_foo, "foo2", NULL);
|
||||
tt_int_op(ret, OP_EQ, 0);
|
||||
|
||||
// Test found with no intro failures in it
|
||||
ret = cache_failure_intro_lookup((const uint8_t *)"ip2", "foo1", NULL);
|
||||
ret = cache_failure_intro_lookup((const uint8_t *) key_ip_two, "foo1", NULL);
|
||||
tt_int_op(ret, OP_EQ, 0);
|
||||
|
||||
// Test found
|
||||
ret = cache_failure_intro_lookup((const uint8_t *)"ip1", "foo1", NULL);
|
||||
ret = cache_failure_intro_lookup((const uint8_t *) key_ip_one, "foo1", NULL);
|
||||
tt_int_op(ret, OP_EQ, 1);
|
||||
|
||||
// Test found and asking for entry
|
||||
cache_failure_intro_lookup((const uint8_t *)"ip1", "foo1", &entry);
|
||||
cache_failure_intro_lookup((const uint8_t *) key_ip_one, "foo1", &entry);
|
||||
tt_assert(entry);
|
||||
tt_assert(entry == ip);
|
||||
|
||||
@ -892,6 +895,9 @@ test_rend_cache_failure_clean(void *data)
|
||||
rend_cache_failure_t *failure;
|
||||
rend_cache_failure_intro_t *ip_one, *ip_two;
|
||||
|
||||
const char key_one[DIGEST_LEN] = "ip1";
|
||||
const char key_two[DIGEST_LEN] = "ip2";
|
||||
|
||||
(void)data;
|
||||
|
||||
rend_cache_init();
|
||||
@ -909,7 +915,7 @@ test_rend_cache_failure_clean(void *data)
|
||||
// Test with one new intro point
|
||||
failure = rend_cache_failure_entry_new();
|
||||
ip_one = rend_cache_failure_intro_entry_new(INTRO_POINT_FAILURE_TIMEOUT);
|
||||
digestmap_set(failure->intro_failures, "ip1", ip_one);
|
||||
digestmap_set(failure->intro_failures, key_one, ip_one);
|
||||
strmap_set_lc(rend_cache_failure, "foo1", failure);
|
||||
rend_cache_failure_clean(time(NULL));
|
||||
tt_int_op(strmap_size(rend_cache_failure), OP_EQ, 1);
|
||||
@ -919,7 +925,7 @@ test_rend_cache_failure_clean(void *data)
|
||||
failure = rend_cache_failure_entry_new();
|
||||
ip_one = rend_cache_failure_intro_entry_new(INTRO_POINT_FAILURE_TIMEOUT);
|
||||
ip_one->created_ts = time(NULL) - 7*60;
|
||||
digestmap_set(failure->intro_failures, "ip1", ip_one);
|
||||
digestmap_set(failure->intro_failures, key_one, ip_one);
|
||||
strmap_set_lc(rend_cache_failure, "foo1", failure);
|
||||
rend_cache_failure_clean(time(NULL));
|
||||
tt_int_op(strmap_size(rend_cache_failure), OP_EQ, 0);
|
||||
@ -929,10 +935,10 @@ test_rend_cache_failure_clean(void *data)
|
||||
failure = rend_cache_failure_entry_new();
|
||||
ip_one = rend_cache_failure_intro_entry_new(INTRO_POINT_FAILURE_TIMEOUT);
|
||||
ip_one->created_ts = time(NULL) - 7*60;
|
||||
digestmap_set(failure->intro_failures, "ip1", ip_one);
|
||||
digestmap_set(failure->intro_failures, key_one, ip_one);
|
||||
ip_two = rend_cache_failure_intro_entry_new(INTRO_POINT_FAILURE_TIMEOUT);
|
||||
ip_two->created_ts = time(NULL) - 2*60;
|
||||
digestmap_set(failure->intro_failures, "ip2", ip_two);
|
||||
digestmap_set(failure->intro_failures, key_two, ip_two);
|
||||
strmap_set_lc(rend_cache_failure, "foo1", failure);
|
||||
rend_cache_failure_clean(time(NULL));
|
||||
tt_int_op(strmap_size(rend_cache_failure), OP_EQ, 1);
|
||||
@ -1051,25 +1057,26 @@ test_rend_cache_failure_intro_add(void *data)
|
||||
(void)data;
|
||||
rend_cache_failure_t *fail_entry;
|
||||
rend_cache_failure_intro_t *entry;
|
||||
const char identity[DIGEST_LEN] = "foo1";
|
||||
|
||||
rend_cache_init();
|
||||
|
||||
// Adds non-existing entry
|
||||
cache_failure_intro_add((const uint8_t *)"foo1", "foo2",
|
||||
cache_failure_intro_add((const uint8_t *) identity, "foo2",
|
||||
INTRO_POINT_FAILURE_TIMEOUT);
|
||||
fail_entry = strmap_get_lc(rend_cache_failure, "foo2");
|
||||
tt_assert(fail_entry);
|
||||
tt_int_op(digestmap_size(fail_entry->intro_failures), OP_EQ, 1);
|
||||
entry = digestmap_get(fail_entry->intro_failures, "foo1");
|
||||
entry = digestmap_get(fail_entry->intro_failures, identity);
|
||||
tt_assert(entry);
|
||||
|
||||
// Adds existing entry
|
||||
cache_failure_intro_add((const uint8_t *)"foo1", "foo2",
|
||||
cache_failure_intro_add((const uint8_t *) identity, "foo2",
|
||||
INTRO_POINT_FAILURE_TIMEOUT);
|
||||
fail_entry = strmap_get_lc(rend_cache_failure, "foo2");
|
||||
tt_assert(fail_entry);
|
||||
tt_int_op(digestmap_size(fail_entry->intro_failures), OP_EQ, 1);
|
||||
entry = digestmap_get(fail_entry->intro_failures, "foo1");
|
||||
entry = digestmap_get(fail_entry->intro_failures, identity);
|
||||
tt_assert(entry);
|
||||
|
||||
done:
|
||||
@ -1082,22 +1089,23 @@ test_rend_cache_intro_failure_note(void *data)
|
||||
(void)data;
|
||||
rend_cache_failure_t *fail_entry;
|
||||
rend_cache_failure_intro_t *entry;
|
||||
const char key[DIGEST_LEN] = "foo1";
|
||||
|
||||
rend_cache_init();
|
||||
|
||||
// Test not found
|
||||
rend_cache_intro_failure_note(INTRO_POINT_FAILURE_TIMEOUT,
|
||||
(const uint8_t *)"foo1", "foo2");
|
||||
(const uint8_t *) key, "foo2");
|
||||
fail_entry = strmap_get_lc(rend_cache_failure, "foo2");
|
||||
tt_assert(fail_entry);
|
||||
tt_int_op(digestmap_size(fail_entry->intro_failures), OP_EQ, 1);
|
||||
entry = digestmap_get(fail_entry->intro_failures, "foo1");
|
||||
entry = digestmap_get(fail_entry->intro_failures, key);
|
||||
tt_assert(entry);
|
||||
tt_int_op(entry->failure_type, OP_EQ, INTRO_POINT_FAILURE_TIMEOUT);
|
||||
|
||||
// Test found
|
||||
rend_cache_intro_failure_note(INTRO_POINT_FAILURE_UNREACHABLE,
|
||||
(const uint8_t *)"foo1", "foo2");
|
||||
(const uint8_t *) key, "foo2");
|
||||
tt_int_op(entry->failure_type, OP_EQ, INTRO_POINT_FAILURE_UNREACHABLE);
|
||||
|
||||
done:
|
||||
@ -1121,6 +1129,7 @@ test_rend_cache_clean_v2_descs_as_dir(void *data)
|
||||
time_t now;
|
||||
rend_service_descriptor_t *desc;
|
||||
now = time(NULL);
|
||||
const char key[DIGEST_LEN] = "abcde";
|
||||
|
||||
(void)data;
|
||||
|
||||
@ -1138,7 +1147,7 @@ test_rend_cache_clean_v2_descs_as_dir(void *data)
|
||||
desc->timestamp = now;
|
||||
desc->pk = pk_generate(0);
|
||||
e->parsed = desc;
|
||||
digestmap_set(rend_cache_v2_dir, "abcde", e);
|
||||
digestmap_set(rend_cache_v2_dir, key, e);
|
||||
|
||||
hid_serv_responsible_for_desc_id_response = 1;
|
||||
rend_cache_clean_v2_descs_as_dir(now, 0);
|
||||
@ -1157,7 +1166,7 @@ test_rend_cache_clean_v2_descs_as_dir(void *data)
|
||||
desc->timestamp = now;
|
||||
desc->pk = pk_generate(0);
|
||||
e->parsed = desc;
|
||||
digestmap_set(rend_cache_v2_dir, "abcde", e);
|
||||
digestmap_set(rend_cache_v2_dir, key, e);
|
||||
|
||||
hid_serv_responsible_for_desc_id_response = 0;
|
||||
rend_cache_clean_v2_descs_as_dir(now, 0);
|
||||
@ -1170,7 +1179,7 @@ test_rend_cache_clean_v2_descs_as_dir(void *data)
|
||||
desc->timestamp = now;
|
||||
desc->pk = pk_generate(0);
|
||||
e->parsed = desc;
|
||||
digestmap_set(rend_cache_v2_dir, "abcde", e);
|
||||
digestmap_set(rend_cache_v2_dir, key, e);
|
||||
|
||||
hid_serv_responsible_for_desc_id_response = 1;
|
||||
rend_cache_clean_v2_descs_as_dir(now, 0);
|
||||
@ -1183,7 +1192,7 @@ test_rend_cache_clean_v2_descs_as_dir(void *data)
|
||||
desc->timestamp = now;
|
||||
desc->pk = pk_generate(0);
|
||||
e->parsed = desc;
|
||||
digestmap_set(rend_cache_v2_dir, "abcde", e);
|
||||
digestmap_set(rend_cache_v2_dir, key, e);
|
||||
|
||||
hid_serv_responsible_for_desc_id_response = 1;
|
||||
rend_cache_clean_v2_descs_as_dir(now, 20000);
|
||||
|
Loading…
Reference in New Issue
Block a user