CVE-2020-17380

NameCVE-2020-17380
DescriptionA heap-based buffer overflow was found in QEMU through 5.0.0 in the SDHCI device emulation support. It could occur while doing a multi block SDMA transfer via the sdhci_sdma_transfer_multi_blocks() routine in hw/sd/sdhci.c. A guest user or process could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition, or potentially execute arbitrary code with privileges of the QEMU process on the host.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDLA-2623-1, DLA-3362-1
Debian Bugs970937

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+deb10u12fixed
bullseye1:5.2+dfsg-11+deb11u3fixed
bullseye (security)1:5.2+dfsg-11+deb11u2fixed
bookworm1:7.2+dfsg-7+deb12u5fixed
trixie1:8.2.1+ds-2fixed
sid1:8.2.2+ds-2fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
qemusourcestretch1:2.8+dfsg-6+deb9u14DLA-2623-1
qemusourcebuster1:3.1+dfsg-8+deb10u10DLA-3362-1
qemusource(unstable)1:5.2+dfsg-10970937

Notes

https://bugzilla.redhat.com/show_bug.cgi?id=1862167
https://lists.nongnu.org/archive/html/qemu-devel/2020-09/msg01175.html
https://git.qemu.org/?p=qemu.git;a=commitdiff;h=dfba99f17feb6d4a129da19d38df1bcd8579d1c3
confusion with CVE-2020-25085, see RH bug; re-submitted as CVE-2021-3409

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