CVE-2023-2861

Name	CVE-2023-2861
Description	A flaw was found in the 9p passthrough filesystem (9pfs) implementation in QEMU. The 9pfs server did not prohibit opening special files on the host side, potentially allowing a malicious client to escape from the exported 9p tree by creating and opening a device file in the shared folder.
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-3759-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
qemu (PTS)	bookworm	1:7.2+dfsg-7+deb12u18	fixed
	bookworm (security)	1:7.2+dfsg-7+deb12u15	fixed
	trixie	1:10.0.11+ds-0+deb13u1	fixed
	trixie (security)	1:10.0.2+ds-2+deb13u1	fixed
	forky	1:11.1.0+ds-2	fixed
	sid	1:11.1.1+ds-1	fixed

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

Package	Type	Release	Fixed Version	Origin
qemu	source	buster	1:3.1+dfsg-8+deb10u12	DLA-3759-1
qemu	source	bookworm	1:7.2+dfsg-7+deb12u1
qemu	source	(unstable)	1:8.0.3+dfsg-1

[bullseye] - qemu <ignored> (Minor issue)
https://gitlab.com/qemu-project/qemu/-/commit/f6b0de53fb87ddefed348a39284c8e2f28dc4eda