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Merge branch 'bug19152_024_v2' into maint-0.2.8

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This commit is contained in:
Nick Mathewson 2016-05-25 09:26:45 -04:00
commit fdfc528f85
2 changed files with 10 additions and 1 deletions
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7
changes/rsa_init_bug Normal file
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@ -0,0 +1,7 @@
o Major bugfixes (key management):
- If OpenSSL fails to generate an RSA key, do not retain a dangling pointer
to the previous (uninitialized) key value. The impact here should be
limited to a difficult-to-trigger crash, if OpenSSL is running an
engine that makes key generation failures possible, or if OpenSSL runs
out of memory. Fixes bug 19152; bugfix on 0.2.1.10-alpha. Found by
Yuan Jochen Kang, Suman Jana, and Baishakhi Ray.

4
src/common/crypto.c
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@ -585,8 +585,10 @@ MOCK_IMPL(int,
{
tor_assert(env);
if (env->key)
if (env->key) {
RSA_free(env->key);
env->key = NULL;
}
{
BIGNUM *e = BN_new();