CVE-2016-5696

NameCVE-2016-5696
Descriptionnet/ipv4/tcp_input.c in the Linux kernel before 4.7 does not properly determine the rate of challenge ACK segments, which makes it easier for remote attackers to hijack TCP sessions via a blind in-window attack.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDLA-609-1, DSA-3659-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
linux (PTS)buster4.19.249-2fixed
buster (security)4.19.289-2fixed
bullseye5.10.197-1fixed
bullseye (security)5.10.191-1fixed
bookworm6.1.55-1fixed
bookworm (security)6.1.52-1fixed
trixie6.5.10-1fixed
sid6.5.13-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
linuxsourcewheezy3.2.81-2DLA-609-1
linuxsourcejessie3.16.36-1+deb8u1DSA-3659-1
linuxsource(unstable)4.7.2-1

Notes

Introduced by: https://github.com/torvalds/linux/commit/282f23c6ee343126156dd41218b22ece96d747e3
Fixed by: https://github.com/torvalds/linux/commit/75ff39ccc1bd5d3c455b6822ab09e533c551f758

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