CVE-2017-18221

NameCVE-2017-18221
DescriptionThe __munlock_pagevec function in mm/mlock.c in the Linux kernel before 4.11.4 allows local users to cause a denial of service (NR_MLOCK accounting corruption) via crafted use of mlockall and munlockall system calls.
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)3.16.57-2fixed
stretch4.9.110-1fixed
stretch (security)4.9.110-3+deb9u3fixed
buster4.17.14-1fixed
sid4.17.17-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
linuxsource(unstable)4.11.6-1medium
linuxsourcejessie3.16.48-1medium
linuxsourcestretch4.9.47-1medium
linuxsourcewheezy(not affected)

Notes

[wheezy] - linux <not-affected> (Vulnerable code introduce later)

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