CVE-2021-45486

NameCVE-2021-45486
DescriptionIn the IPv4 implementation in the Linux kernel before 5.12.4, net/ipv4/route.c has an information leak because the hash table is very small.
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

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
linux (PTS)stretch4.9.228-1vulnerable
stretch (security)4.9.290-1fixed
buster4.19.208-1fixed
buster (security)4.19.194-3vulnerable
bullseye5.10.84-1fixed
bullseye (security)5.10.46-5fixed
bookworm, sid5.15.5-2fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
linuxsourcestretch4.9.290-1
linuxsourcebuster4.19.208-1
linuxsource(unstable)5.10.38-1

Notes

https://arxiv.org/pdf/2112.09604.pdf
https://git.kernel.org/linus/aa6dd211e4b1dde9d5dc25d699d35f789ae7eeba (5.13-rc1)

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