DescriptionMemory leak in hw/9pfs/9p.c in QEMU (aka Quick Emulator) allows local privileged guest OS users to cause a denial of service (host memory consumption and possibly QEMU process crash) by leveraging a missing cleanup operation in FileOperations.
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)
Debian Bugs847496

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
qemu (PTS)buster, buster (security)1:3.1+dfsg-8+deb10u8fixed
bullseye (security), bullseye1:5.2+dfsg-11+deb11u2fixed
bookworm, sid1:7.0+dfsg-7fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs


[wheezy] - qemu <no-dsa> (proxy and handle drivers not included during compilation)
[wheezy] - qemu-kvm <no-dsa> (proxy and handle drivers not included during compilation)
Fixed by:;a=commit;h=702dbcc274e2ca43be20ba64c758c0ca57dab91d (v2.8.0-rc2)
proxy and handle drivers not included during compilation in wheezy, so the cleanup function is never implemented:
see debian-lts ML:

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