CVE-2020-25742

NameCVE-2020-25742
Descriptionpci_change_irq_level in hw/pci/pci.c in QEMU before 5.1.1 has a NULL pointer dereference because pci_get_bus() might not return a valid pointer.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
NVD severitylow
Debian Bugs971390

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
qemu (PTS)stretch1:2.8+dfsg-6+deb9u9vulnerable
stretch (security)1:2.8+dfsg-6+deb9u11vulnerable
buster, buster (security)1:3.1+dfsg-8+deb10u8vulnerable
bullseye, sid1:5.1+dfsg-4vulnerable

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
qemusource(unstable)(unfixed)971390

Notes

[buster] - qemu <postponed> (Fix along in next qemu DSA)
[stretch] - qemu <postponed> (Fix along in future DLA)
https://lists.nongnu.org/archive/html/qemu-devel/2020-09/msg05294.html
https://ruhr-uni-bochum.sciebo.de/s/NNWP2GfwzYKeKwE?path=%2Flsi_nullptr1

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