CVE-2018-1118

NameCVE-2018-1118
DescriptionLinux kernel vhost since version 4.8 does not properly initialize memory in messages passed between virtual guests and the host operating system in the vhost/vhost.c:vhost_new_msg() function. This can allow local privileged users to read some kernel memory contents when reading from the /dev/vhost-net device file.
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-1423-1
NVD severitylow (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)3.16.59-1fixed
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)4.17.3-1low
linuxsourcejessie(not affected)
linuxsourcestretch4.9.110-1low
linuxsourcewheezy(not affected)
linux-4.9sourcejessie4.9.110-1~deb8u1lowDLA-1423-1

Notes

[jessie] - linux <not-affected> (Vulnerable code not present)
[wheezy] - linux <not-affected> (Vulnerable code not present)
https://lkml.org/lkml/2018/4/27/833
Fixed by: https://git.kernel.org/linus/670ae9caaca467ea1bfd325cb2a5c98ba87f94ad

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