CVE-2016-9843

Name	CVE-2016-9843
Description	The crc32_big function in crc32.c in zlib 1.2.8 might allow context-dependent attackers to have unspecified impact via vectors involving big-endian CRC calculation.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
NVD severity	high (attack range: remote)
Debian Bugs	847275

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
zlib (PTS)	jessie	1:1.2.8.dfsg-2	vulnerable
	stretch	1:1.2.8.dfsg-5	fixed
	buster, sid	1:1.2.11.dfsg-1	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
zlib	source	(unstable)	1:1.2.8.dfsg-3	high		847275

Notes

[jessie] - zlib <no-dsa> (Minor issue)
[wheezy] - zlib <no-dsa> (Minor issue)
https://github.com/madler/zlib/commit/d1d577490c15a0c6862473d7576352a9f18ef811
Report: https://wiki.mozilla.org/images/0/09/Zlib-report.pdf