CVE-2019-5736

Name	CVE-2019-5736
Description	runc through 1.0-rc6, as used in Docker before 18.09.2 and other products, allows attackers to overwrite the host runc binary (and consequently obtain host root access) by leveraging the ability to execute a command as root within one of these types of containers: (1) a new container with an attacker-controlled image, or (2) an existing container, to which the attacker previously had write access, that can be attached with docker exec. This occurs because of file-descriptor mishandling, related to /proc/self/exe.
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	922050, 922169

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
lxc (PTS)	buster	1:3.1.0+really3.0.3-8	fixed
	bullseye	1:4.0.6-2+deb11u2	fixed
	bookworm, sid	1:5.0.2-1	fixed
runc (PTS)	buster	1.0.0~rc6+dfsg1-3	fixed
	buster (security)	1.0.0~rc6+dfsg1-3+deb10u2	fixed
	bullseye	1.0.0~rc93+ds1-5+deb11u2	fixed
	bookworm, sid	1.1.5+ds1-1	fixed

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

Package	Type	Release	Fixed Version	Urgency	Debian Bugs
lxc	source	(unstable)	1:3.1.0+really3.0.3-4	unimportant	922169
runc	source	stretch	0.1.1+dfsg1-2+deb9u1
runc	source	(unstable)	1.0.0~rc6+dfsg1-2		922050

Notes

https://www.openwall.com/lists/oss-security/2019/02/11/2
runc: Fixed by: https://github.com/opencontainers/runc/commit/0a8e4117e7f715d5fbeef398405813ce8e88558b
lxc: Fixed by: https://github.com/lxc/lxc/commit/6400238d08cdf1ca20d49bafb85f4e224348bf9d
Not considered a security issue by LXC upstream