CVE-2017-13695

NameCVE-2017-13695
DescriptionThe acpi_ns_evaluate() function in drivers/acpi/acpica/nseval.c in the Linux kernel through 4.12.9 does not flush the operand cache and causes a kernel stack dump, which allows local users to obtain sensitive information from kernel memory and bypass the KASLR protection mechanism (in the kernel through 4.9) via a crafted ACPI table.
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)
NVD severitylow (attack range: local)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
acpica-unix (PTS)jessie20140926-1vulnerable
stretch20160831-1vulnerable
buster20180508-1fixed
sid20180531-1fixed
linux (PTS)jessie (security), jessie3.16.56-1+deb8u1vulnerable
stretch4.9.82-1+deb9u3vulnerable
stretch (security)4.9.88-1+deb9u1vulnerable
buster4.16.12-1vulnerable
sid4.16.16-2vulnerable

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
acpica-unixsource(unstable)20180209-1unimportant
linuxsource(unstable)(unfixed)unimportant

Notes

https://patchwork.kernel.org/patch/9850567/
non-issue/no relevant security impact

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