CVE-2020-25085

NameCVE-2020-25085
DescriptionQEMU 5.0.0 has a heap-based Buffer Overflow in flatview_read_continue in exec.c because hw/sd/sdhci.c mishandles a write operation in the SDHC_BLKSIZE case.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDLA-2469-1, DLA-3099-1, ELA-321-1
Debian Bugs970540

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
qemu (PTS)jessie, jessie (lts)1:2.1+dfsg-12+deb8u23fixed
stretch (security)1:2.8+dfsg-6+deb9u17fixed
stretch (lts), stretch1:2.8+dfsg-6+deb9u19fixed
buster (security), buster, buster (lts)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+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
qemusourcejessie1:2.1+dfsg-12+deb8u18ELA-321-1
qemusourcestretch1:2.8+dfsg-6+deb9u12DLA-2469-1
qemusourcebuster1:3.1+dfsg-8+deb10u9DLA-3099-1
qemusource(unstable)1:5.2+dfsg-1970540

Notes

https://lists.nongnu.org/archive/html/qemu-devel/2020-09/msg00733.html
https://lists.nongnu.org/archive/html/qemu-devel/2020-09/msg01439.html
https://www.openwall.com/lists/oss-security/2020/09/16/6
https://bugs.launchpad.net/qemu/+bug/1892960
https://ruhr-uni-bochum.sciebo.de/s/NNWP2GfwzYKeKwE?path=%2Fsdhci_oob_write1
The second patch referenced appears not to be needed with the commited
fix and relates to the CVE-2020-17380 assignment.
Fixed by: https://git.qemu.org/?p=qemu.git;a=commit;h=dfba99f17feb6d4a129da19d38df1bcd8579d1c3 (v5.2.0-rc0)

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