CVE-2017-9951

Name	CVE-2017-9951
Description	The try_read_command function in memcached.c in memcached before 1.4.39 allows remote attackers to cause a denial of service (segmentation fault) via a request to add/set a key, which makes a comparison between signed and unsigned int and triggers a heap-based buffer over-read. NOTE: this vulnerability exists because of an incomplete fix for CVE-2016-8705.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DLA-1033-1, DSA-4218-1
Debian Bugs	868701

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
memcached (PTS)	bullseye	1.6.9+dfsg-1	fixed
	bookworm	1.6.18-1	fixed
	trixie	1.6.38-1	fixed
	forky	1.6.39-1	fixed
	sid	1.6.39-2	fixed

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

Package	Type	Release	Fixed Version	Origin	Debian Bugs
memcached	source	wheezy	1.4.13-0.2+deb7u3	DLA-1033-1
memcached	source	jessie	1.4.21-1.1+deb8u2	DSA-4218-1
memcached	source	stretch	1.4.33-1+deb9u1	DSA-4218-1
memcached	source	(unstable)	1.5.0-1		868701

Notes

https://www.twistlock.com/2017/07/13/cve-2017-9951-heap-overflow-memcached-server-1-4-38-twistlock-vulnerability-report/
https://github.com/memcached/memcached/commit/328629445c71e6c17074f6e9e0e3ef585b58f167