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| author | Nick Mathewson <nickm@torproject.org> | 2021-03-15 08:52:53 -0400 |
|---|---|---|
| committer | Nick Mathewson <nickm@torproject.org> | 2021-03-15 08:52:53 -0400 |
| commit | efb174df242adf964e383381d31b891c5f535f1f (patch) | |
| tree | 9f77cfeee58f40fcc9f6fda927234589d1b5b799 | |
| parent | 8e4965aa36d77aabb47b55eed69d7b9e23bef5d1 (diff) | |
| parent | 7c5a67ccd983bb028d21a5e8aa48b4cd9d6a8a1c (diff) | |
| download | tor-efb174df242adf964e383381d31b891c5f535f1f.tar.gz tor-efb174df242adf964e383381d31b891c5f535f1f.zip | |
Merge branch 'maint-0.4.5'
| -rw-r--r-- | changes/ticket40286_minimal | 5 | ||||
| -rw-r--r-- | src/feature/dirparse/unparseable.c | 6 |
2 files changed, 11 insertions, 0 deletions
diff --git a/changes/ticket40286_minimal b/changes/ticket40286_minimal new file mode 100644 index 0000000000..b8669debaa --- /dev/null +++ b/changes/ticket40286_minimal @@ -0,0 +1,5 @@ + o Major bugfixes (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. diff --git a/src/feature/dirparse/unparseable.c b/src/feature/dirparse/unparseable.c index 548ca7dbd6..9098bfa4e0 100644 --- a/src/feature/dirparse/unparseable.c +++ b/src/feature/dirparse/unparseable.c @@ -497,6 +497,12 @@ dump_desc,(const char *desc, const char *type)) { tor_assert(desc); tor_assert(type); +#ifndef TOR_UNIT_TESTS + /* On older versions of Tor we are disabling this function, since it + * can be called with strings that are far too long. */ + if (1) + return; +#endif size_t len; /* The SHA256 of the string */ uint8_t digest_sha256[DIGEST256_LEN]; |