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Message-ID: <20220324034949.GA25415@thinkstation.cmpxchg8b.net>
Date: Wed, 23 Mar 2022 20:49:49 -0700
From: Tavis Ormandy <taviso@...il.com>
To: oss-security@...ts.openwall.com
Subject: zlib memory corruption on deflate (i.e. compress)
Greetings list, I was recently trying to track down a reproducible crash
in a compressor. Believe it or not, it really was a bug in
zlib-1.2.11 when compressing (not decompressing!) certain inputs.
I reported it upstream, but it turns out the issue has been public since
2018, but the patch never made it into a release. As far as I know,
nobody ever assigned it a CVE.
https://github.com/madler/zlib/commit/5c44459c3b28a9bd3283aaceab7c615f8020c531
As far as I can tell, no distros have picked this up.
Tavis.
--
_o) $ lynx lock.cmpxchg8b.com
/\\ _o) _o) $ finger taviso@....org
_\_V _( ) _( ) @taviso
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