CVE-2013-4548

Name	CVE-2013-4548
Description	The mm_newkeys_from_blob function in monitor_wrap.c in sshd in OpenSSH 6.2 and 6.3, when an AES-GCM cipher is used, does not properly initialize memory for a MAC context data structure, which allows remote authenticated users to bypass intended ForceCommand and login-shell restrictions via packet data that provides a crafted callback address.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs	729029

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, 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	Debian Bugs
openssh	source	squeeze	(not affected)
openssh	source	wheezy	(not affected)
openssh	source	(unstable)	1:6.4p1-1	729029

[wheezy] - openssh <not-affected> (AES-GCM support introduced in 6.2)
[squeeze] - openssh <not-affected> (AES-GCM support introduced in 6.2)