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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