CVE-2016-10012

Name	CVE-2016-10012
Description	The shared memory manager (associated with pre-authentication compression) in sshd in OpenSSH before 7.4 does not ensure that a bounds check is enforced by all compilers, which might allows local users to gain privileges by leveraging access to a sandboxed privilege-separation process, related to the m_zback and m_zlib data structures.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DLA-1500-1
Debian Bugs	848717

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
openssh (PTS)	bullseye (security), bullseye	1:8.4p1-5+deb11u3	fixed
	bookworm	1:9.2p1-2+deb12u4	fixed
	bookworm (security)	1:9.2p1-2+deb12u3	fixed
	sid, trixie	1:9.9p1-3	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
openssh	source	jessie	1:6.7p1-5+deb8u6		DLA-1500-1
openssh	source	(unstable)	1:7.4p1-1	low		848717

Notes

[wheezy] - openssh <no-dsa> (Minor issue)
Fixed in upstream 7.4: https://www.openssh.com/txt/release-7.4
http://cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/monitor.c.diff?r1=1.165&r2=1.166
http://cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/monitor.h.diff?r1=1.19&r2=1.20