CVE-2014-7840

NameCVE-2014-7840
DescriptionIt was found that certain values that were read when loading RAM during migration were not validated. A user able to alter the savevm data (either on the disk or over the wire during migration) could use either of these flaws to corrupt QEMU process memory on the (destination) host, which could potentially result in arbitrary code execution on the host with the privileges of the QEMU process.
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 Bugs769451

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
qemu (PTS)buster1:3.1+dfsg-8+deb10u8fixed
buster (security)1:3.1+dfsg-8+deb10u9fixed
bullseye (security), bullseye1:5.2+dfsg-11+deb11u2fixed
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)2.1+dfsg-8low769451
qemu-kvmsource(unstable)(unfixed)low

Notes

[wheezy] - qemu <no-dsa> (Minor issue, hardly exploitable in practice)
[squeeze] - qemu <no-dsa> (Minor issue, hardly exploitable in practice)
[wheezy] - qemu-kvm <no-dsa> (Minor issue, hardly exploitable in practice)
[squeeze] - qemu-kvm <no-dsa> (Minor issue, hardly exploitable in practice)
http://thread.gmane.org/gmane.comp.emulators.qemu/306117

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