CVE-2018-3665

NameCVE-2018-3665
DescriptionSystem software utilizing Lazy FP state restore technique on systems using Intel Core-based microprocessors may potentially allow a local process to infer data from another process through a speculative execution side channel.
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-1422-1, DSA-4232-1
NVD severitymedium

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
linux (PTS)stretch4.9.228-1fixed
stretch (security)4.9.272-2fixed
buster4.19.194-1fixed
buster (security)4.19.194-3fixed
bullseye5.10.46-2fixed
sid5.10.46-3fixed
xen (PTS)stretch (security), stretch4.8.5.final+shim4.10.4-1+deb9u12fixed
buster4.11.4+99-g8bce4698f6-1fixed
buster (security)4.11.4+107-gef32c7afa2-1fixed
bullseye4.14.1+11-gb0b734a8b3-1fixed
sid4.14.2+25-gb6a8c4f72d-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
linuxsourcejessie3.16.57-1DLA-1422-1
linuxsource(unstable)4.6.1-1
xensourcestretch4.8.3+xsa267+shim4.10.1+xsa267-1+deb9u8DSA-4232-1
xensource(unstable)4.8.3+xsa267+shim4.10.1+xsa267-1+deb9u8

Notes

[jessie] - xen <ignored> (Depends on fix for CVE-2017-5715, CVE-2017-5753, CVE-2017-5754)
https://xenbits.xen.org/xsa/advisory-267.html
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00145.html
Default eagerfpu=on on all CPUs: https://git.kernel.org/linus/58122bf1d856a4ea9581d62a07c557d997d46a19
Hard-disable lazy FPU mode: https://git.kernel.org/linus/ca6938a1cd8a1c5e861a99b67f84ac166fc2b9e7

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