CVE-2017-7482

NameCVE-2017-7482
DescriptionIn the Linux kernel before version 4.12, Kerberos 5 tickets decoded when using the RXRPC keys incorrectly assumes the size of a field. This could lead to the size-remaining variable wrapping and the data pointer going over the end of the buffer. This could possibly lead to memory corruption and possible privilege escalation.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDLA-1099-1, DSA-3927-1, DSA-3945-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
linux (PTS)jessie, jessie (lts)3.16.84-1fixed
stretch (security)4.9.320-2fixed
stretch (lts), stretch4.9.320-3fixed
buster4.19.249-2fixed
buster (security)4.19.304-1fixed
bullseye5.10.209-2fixed
bullseye (security)5.10.205-2fixed
bookworm6.1.76-1fixed
bookworm (security)6.1.69-1fixed
trixie6.6.15-2fixed
sid6.7.7-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
linuxsourcewheezy3.2.93-1DLA-1099-1
linuxsourcejessie3.16.43-2+deb8u3DSA-3945-1
linuxsourcestretch4.9.30-2+deb9u3DSA-3927-1
linuxsource(unstable)4.11.11-1

Notes

Fixed by: https://git.kernel.org/linus/5f2f97656ada8d811d3c1bef503ced266fcd53a0

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