CVE-2020-25211

NameCVE-2020-25211
DescriptionIn the Linux kernel through 5.8.7, local attackers able to inject conntrack netlink configuration could overflow a local buffer, causing crashes or triggering use of incorrect protocol numbers in ctnetlink_parse_tuple_filter in net/netfilter/nf_conntrack_netlink.c, aka CID-1cc5ef91d2ff.
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)
ReferencesDLA-2417-1, DLA-2420-1, DSA-4774-1
NVD severitylow

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
linux (PTS)stretch4.9.228-1vulnerable
stretch (security)4.9.240-2fixed
buster4.19.146-1vulnerable
buster (security)4.19.152-1fixed
bullseye5.9.9-1fixed
sid5.9.11-1fixed
linux-4.19 (PTS)stretch (security)4.19.152-1~deb9u1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
linuxsourcestretch4.9.240-1DLA-2420-1
linuxsourcebuster4.19.152-1DSA-4774-1
linuxsource(unstable)5.8.14-1
linux-4.19sourcestretch4.19.152-1~deb9u1DLA-2417-1

Notes

https://git.kernel.org/linus/1cc5ef91d2ff94d2bf2de3b3585423e8a1051cb6

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