CVE-2018-14678

NameCVE-2018-14678
DescriptionAn issue was discovered in the Linux kernel through 4.17.11, as used in Xen through 4.11.x. The xen_failsafe_callback entry point in arch/x86/entry/entry_64.S does not properly maintain RBX, which allows local users to cause a denial of service (uninitialized memory usage and system crash). Within Xen, 64-bit x86 PV Linux guest OS users can trigger a guest OS crash or possibly gain privileges.
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)
ReferencesDLA-1529-1, DLA-1531-1, DSA-4308-1
NVD severityhigh (attack range: local)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
linux (PTS)jessie3.16.56-1+deb8u1vulnerable
jessie (security)3.16.59-1fixed
stretch4.9.130-2fixed
stretch (security)4.9.110-3+deb9u6fixed
buster, sid4.18.20-2fixed
linux-4.9 (PTS)jessie (security)4.9.110-3+deb9u5~deb8u1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
linuxsource(unstable)4.17.14-1high
linuxsourcejessie3.16.59-1highDLA-1529-1
linuxsourcestretch4.9.110-3+deb9u5highDSA-4308-1
linux-4.9sourcejessie4.9.110-3+deb9u5~deb8u1highDLA-1531-1

Notes

https://xenbits.xen.org/xsa/advisory-274.html
https://git.kernel.org/linus/b3681dd548d06deb2e1573890829dff4b15abf46

Search for package or bug name: Reporting problems