CVE-2020-16119

NameCVE-2020-16119
DescriptionUse-after-free vulnerability in the Linux kernel exploitable by a local attacker due to reuse of a DCCP socket with an attached dccps_hc_tx_ccid object as a listener after being released. Fixed in Ubuntu Linux kernel 5.4.0-51.56, 5.3.0-68.63, 4.15.0-121.123, 4.4.0-193.224, 3.13.0.182.191 and 3.2.0-149.196.
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-2785-1, DSA-4978-1
NVD severitymedium

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
linux (PTS)stretch4.9.228-1vulnerable
stretch (security)4.9.272-2vulnerable
buster4.19.208-1fixed
buster (security)4.19.194-3vulnerable
bullseye5.10.70-1fixed
bullseye (security)5.10.46-5fixed
bookworm5.14.9-2fixed
sid5.14.12-1fixed
linux-4.19 (PTS)stretch (security)4.19.208-1~deb9u1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
linuxsourcebuster4.19.208-1
linuxsourcebullseye5.10.46-5DSA-4978-1
linuxsource(unstable)5.14.6-1
linux-4.19sourcestretch4.19.208-1~deb9u1DLA-2785-1

Notes

https://www.openwall.com/lists/oss-security/2020/10/13/7
https://git.kernel.org/linus/d9ea761fdd197351890418acd462c51f241014a7

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