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| author | tb <> | 2023-11-28 13:19:04 +0000 |
|---|---|---|
| committer | tb <> | 2023-11-28 13:19:04 +0000 |
| commit | 2ef851529997e0374d16c3733749d9cfb616a768 (patch) | |
| tree | b2aa716815fa7c1b8c0f2e5c5547467a8e108baf /src/lib/libssl/s3_lib.c | |
| parent | 94f79d473365fa39d5c97755523e59bd8053d85d (diff) | |
| download | openbsd-2ef851529997e0374d16c3733749d9cfb616a768.tar.gz openbsd-2ef851529997e0374d16c3733749d9cfb616a768.tar.bz2 openbsd-2ef851529997e0374d16c3733749d9cfb616a768.zip | |
Switch to legacy method late in tls13_use_legacy_stack()
If memory allocation of s->init_buf fails in ssl3_setup_init_buffer()
during downgrade to the legacy stack, the legacy state machine would
resume with an incorrectly set up SSL, resulting in a NULL dereference.
The fix is to switch to the legacy method only after the SSL is fully
set up. There is a second part to this fix, which will be committed
once we manage to agree on the color of the bikeshed.
Detailed analysis and patch from Masaru Masuda, many thanks!
https://github.com/libressl/openbsd/issues/146
ok jsing
Diffstat (limited to 'src/lib/libssl/s3_lib.c')
0 files changed, 0 insertions, 0 deletions