CVE-2017-16994

NameCVE-2017-16994
DescriptionThe walk_hugetlb_range function in mm/pagewalk.c in the Linux kernel before 4.14.2 mishandles holes in hugetlb ranges, which allows local users to obtain sensitive information from uninitialized kernel memory via crafted use of the mincore() system call.
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 severitylow (attack range: local)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
linux (PTS)jessie (security), jessie3.16.56-1+deb8u1fixed
stretch4.9.82-1+deb9u3fixed
stretch (security)4.9.88-1+deb9u1fixed
buster4.16.12-1fixed
sid4.16.16-2fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
linuxsource(unstable)4.14.2-1low
linuxsourcejessie(not affected)
linuxsourcestretch4.9.65-1low
linuxsourcewheezy(not affected)

Notes

[jessie] - linux <not-affected> (Vulnerable code introduced in 4.0)
[wheezy] - linux <not-affected> (Vulnerable code introduced in 4.0)
Fixed by: https://git.kernel.org/linus/373c4557d2aa362702c4c2d41288fb1e54990b7c (4.15-rc1)

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