CVE-2022-4144

NameCVE-2022-4144
DescriptionAn out-of-bounds read flaw was found in the QXL display device emulation in QEMU. The qxl_phys2virt() function does not check the size of the structure pointed to by the guest physical address, potentially reading past the end of the bar space into adjacent pages. A malicious guest user could use this flaw to crash the QEMU process on the host causing a denial of service condition.
SourceCVE (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)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
qemu (PTS)buster1:3.1+dfsg-8+deb10u8vulnerable
buster (security)1:3.1+dfsg-8+deb10u9vulnerable
bullseye (security), bullseye1:5.2+dfsg-11+deb11u2vulnerable
bookworm1:7.2+dfsg-1fixed
sid1:7.2+dfsg-2fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
qemusource(unstable)1:7.2+dfsg-1

Notes

[bullseye] - qemu <no-dsa> (Minor issue)
https://bugzilla.redhat.com/show_bug.cgi?id=2148506
https://lists.nongnu.org/archive/html/qemu-devel/2022-11/msg04143.html
https://gitlab.com/qemu-project/qemu/-/issues/1336
https://gitlab.com/qemu-project/qemu/-/commit/6dbbf055148c6f1b7d8a3251a65bd6f3d1e1f622

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