CVE-2017-12192

NameCVE-2017-12192
DescriptionThe keyctl_read_key function in security/keys/keyctl.c in the Key Management subcomponent in the Linux kernel before 4.13.5 does not properly consider that a key may be possessed but negatively instantiated, which allows local users to cause a denial of service (OOPS and system crash) via a crafted KEYCTL_READ operation.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SuSE, 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)wheezy3.2.78-1fixed
wheezy (security)3.2.96-2fixed
jessie3.16.51-2fixed
jessie (security)3.16.43-2+deb8u5vulnerable
stretch4.9.65-3fixed
stretch (security)4.9.30-2+deb9u5vulnerable
buster4.13.13-1fixed
sid4.14.2-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
linuxsource(unstable)4.13.4-2medium
linuxsourcejessie3.16.51-1medium
linuxsourcestretch4.9.65-1medium
linuxsourcewheezy(not affected)

Notes

[wheezy] - linux <not-affected> (Vulnerable code introduced later)
Fixed by: https://git.kernel.org/linus/37863c43b2c6464f252862bf2e9768264e961678 (4.14-rc3)
Introduced by: https://git.kernel.org/linus/61ea0c0ba904a55f55317d850c1072ff7835ac92 (3.13-rc1)

Search for package or bug name: Reporting problems