CVE-2020-25743

NameCVE-2020-25743
Descriptionhw/ide/pci.c in QEMU before 5.1.1 can trigger a NULL pointer dereference because it lacks a pointer check before an ide_cancel_dma_sync call.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs970940

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+deb9u17vulnerable
stretch (lts), stretch1:2.8+dfsg-6+deb9u19vulnerable
buster1:3.1+dfsg-8+deb10u8vulnerable
buster (security)1:3.1+dfsg-8+deb10u12vulnerable
bullseye1:5.2+dfsg-11+deb11u3vulnerable
bullseye (security)1:5.2+dfsg-11+deb11u2vulnerable
bookworm1:7.2+dfsg-7+deb12u6vulnerable
trixie1:8.2.4+ds-1vulnerable
sid1:9.0.2+ds-1vulnerable

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
qemusourcejessie(not affected)
qemusource(unstable)(unfixed)970940

Notes

[bookworm] - qemu <postponed> (Minor issue, revisit when fixed upstream)
[bullseye] - qemu <postponed> (Minor issue, revisit when fixed upstream)
[buster] - qemu <postponed> (Minor issue, waiting for sanctioned patch)
https://lists.nongnu.org/archive/html/qemu-devel/2020-09/msg01568.html
https://ruhr-uni-bochum.sciebo.de/s/NNWP2GfwzYKeKwE?path=%2Fide_nullptr1
No sanctioned upstream patch as of 2023-03-09
[stretch] - qemu <postponed> (Minor issue, waiting for sanctioned patch)
[jessie] - qemu <not-affected> (cancel of DMA sync introduced later)

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