CVE-2017-7533

NameCVE-2017-7533
DescriptionRace condition in the fsnotify implementation in the Linux kernel through 4.12.4 allows local users to gain privileges or cause a denial of service (memory corruption) via a crafted application that leverages simultaneous execution of the inotify_handle_event and vfs_rename functions.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SuSE, Mageia, GitHub code/issues, web search, more)
ReferencesDSA-3927-1, DSA-3945-1
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)3.2.89-2fixed
jessie3.16.43-2+deb8u2vulnerable
jessie (security)3.16.43-2+deb8u3fixed
stretch4.9.30-2+deb9u2vulnerable
stretch (security)4.9.30-2+deb9u3fixed
buster, sid4.12.6-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
linuxsource(unstable)4.12.6-1medium
linuxsourcejessie3.16.43-2+deb8u3mediumDSA-3945-1
linuxsourcestretch4.9.30-2+deb9u3mediumDSA-3927-1
linuxsourcewheezy(not affected)

Notes

[wheezy] - linux <not-affected> (Vulnerable code not present)
http://www.openwall.com/lists/oss-security/2017/08/03/2
Fixed by: https://git.kernel.org/linus/49d31c2f389acfe83417083e1208422b4091cd9 (v4.13-rc1)

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