CVE-2022-37434

Name	CVE-2022-37434
Description	zlib through 1.2.12 has a heap-based buffer over-read or buffer overflow in inflate in inflate.c via a large gzip header extra field. NOTE: only applications that call inflateGetHeader are affected. Some common applications bundle the affected zlib source code but may be unable to call inflateGetHeader (e.g., see the nodejs/node reference).
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more)
Debian Bugs	1016710

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
zlib (PTS)	buster	1:1.2.11.dfsg-1	vulnerable
	buster (security)	1:1.2.11.dfsg-1+deb10u1	vulnerable
	bullseye (security), bullseye	1:1.2.11.dfsg-2+deb11u1	vulnerable
	bookworm, sid	1:1.2.11.dfsg-4	vulnerable

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
zlib	source	(unstable)	(unfixed)			1016710

Notes

https://github.com/ivd38/zlib_overflow
https://github.com/madler/zlib/commit/eff308af425b67093bab25f80f1ae950166bece1
https://github.com/madler/zlib/commit/1eb7682f845ac9e9bf9ae35bbfb3bad5dacbd91d