CVE-2020-14394

NameCVE-2020-14394
DescriptionAn infinite loop flaw was found in the USB xHCI controller emulation of QEMU while computing the length of the Transfer Request Block (TRB) Ring. This flaw allows a privileged guest user to hang the QEMU process on the host, resulting in a denial of service.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDLA-3362-1, ELA-1063-1
Debian Bugs979677

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
qemu (PTS)jessie, jessie (lts)1:2.1+dfsg-12+deb8u23vulnerable
stretch (security)1:2.8+dfsg-6+deb9u17vulnerable
stretch (lts), stretch1:2.8+dfsg-6+deb9u19fixed
buster1:3.1+dfsg-8+deb10u8vulnerable
buster (security)1:3.1+dfsg-8+deb10u12fixed
bullseye1:5.2+dfsg-11+deb11u3fixed
bullseye (security)1:5.2+dfsg-11+deb11u2vulnerable
bookworm1:7.2+dfsg-7+deb12u6fixed
trixie1:8.2.4+ds-1fixed
sid1:9.0.2+ds-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
qemusourcestretch1:2.8+dfsg-6+deb9u19ELA-1063-1
qemusourcebuster1:3.1+dfsg-8+deb10u10DLA-3362-1
qemusourcebullseye1:5.2+dfsg-11+deb11u3
qemusource(unstable)1:7.1+dfsg-1979677

Notes

https://bugzilla.redhat.com/show_bug.cgi?id=1908004
https://gitlab.com/qemu-project/qemu/-/issues/646
Fixed by: https://gitlab.com/qemu-project/qemu/-/commit/effaf5a240e03020f4ae953e10b764622c3e87cc (v7.1.0-rc3)
[jessie] - qemu <postponed> (Minor issue, privileged local DoS, low CVSS, fix along with next ELA)

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