CVE-2016-4558

NameCVE-2016-4558
DescriptionThe BPF subsystem in the Linux kernel before 4.5.5 mishandles reference counts, which allows local users to cause a denial of service (use-after-free) or possibly have unspecified other impact via a crafted application on (1) a system with more than 32 Gb of memory, related to the program reference count or (2) a 1 Tb system, related to the map reference count.
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 severitymedium (attack range: local)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
linux (PTS)jessie3.16.56-1+deb8u1fixed
jessie (security)3.16.59-1fixed
stretch4.9.110-1fixed
stretch (security)4.9.110-3+deb9u6fixed
buster, sid4.18.10-2fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
linuxsource(unstable)4.5.3-1medium
linuxsourcejessie(not affected)
linuxsourcewheezy(not affected)

Notes

[jessie] - linux <not-affected> (Issue introduced later)
[wheezy] - linux <not-affected> (Issue introduced later)
Fixed by: https://git.kernel.org/linus/92117d8443bc5afacc8d5ba82e541946310f106e
Introduced by: https://git.kernel.org/linus/1be7f75d1668d6296b80bf35dcf6762393530afc(v4.4-rc1)
https://bugs.chromium.org/p/project-zero/issues/detail?id=809

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