CVE-2019-14835

Name	CVE-2019-14835
Description	A buffer overflow flaw was found, in versions from 2.6.34 to 5.2.x, in the way Linux kernel's vhost functionality that translates virtqueue buffers to IOVs, logged the buffer descriptors during migration. A privileged guest user able to pass descriptors with invalid length to the host when migration is underway, could use this flaw to increase their privileges on the host.
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-1930-1, DLA-1940-1, DSA-4531-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
linux (PTS)	buster	4.19.249-2	fixed
	buster (security)	4.19.304-1	fixed
	bullseye	5.10.209-2	fixed
	bullseye (security)	5.10.205-2	fixed
	bookworm	6.1.76-1	fixed
	bookworm (security)	6.1.85-1	fixed
	trixie	6.6.15-2	fixed
	sid	6.7.12-1	fixed

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

Package	Type	Release	Fixed Version	Origin
linux	source	jessie	3.16.74-1	DLA-1930-1
linux	source	stretch	4.9.189-3+deb9u1	DSA-4531-1
linux	source	buster	4.19.67-2+deb10u1	DSA-4531-1
linux	source	(unstable)	5.2.17-1
linux-4.9	source	jessie	4.9.189-3+deb9u1~deb8u1	DLA-1940-1

https://www.openwall.com/lists/oss-security/2019/09/17/1
https://git.kernel.org/linus/060423bfdee3f8bc6e2c1bac97de24d5415e2bc4