CVE-2016-2070

NameCVE-2016-2070
DescriptionThe tcp_cwnd_reduction function in net/ipv4/tcp_input.c in the Linux kernel before 4.3.5 allows remote attackers to cause a denial of service (divide-by-zero error and system crash) via crafted TCP traffic.
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 severityhigh (attack range: remote)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
linux (PTS)wheezy3.2.78-1fixed
wheezy (security)3.2.96-3fixed
jessie3.16.51-2fixed
jessie (security)3.16.51-3+deb8u1fixed
stretch4.9.65-3fixed
stretch (security)4.9.65-3+deb9u2fixed
buster4.14.7-1fixed
sid4.14.13-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
linuxsource(unstable)4.3.5-1high
linuxsourcejessie(not affected)
linuxsourcewheezy(not affected)
linux-2.6source(unstable)(not affected)

Notes

[jessie] - linux <not-affected> (Vulnerable code introduced later)
[wheezy] - linux <not-affected> (Vulnerable code introduced later)
- linux-2.6 <not-affected> (Vulnerable code introduced later)
Upstream commit: https://git.kernel.org/linus/8b8a321ff72c785ed5e8b4cf6eda20b35d427390 (v4.4)
Introduced by: https://git.kernel.org/linus/3759824da87b30ce7a35b4873b62b0ba38905ef5 (v4.3-rc1)

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