CVE-2017-8086

NameCVE-2017-8086
DescriptionMemory leak in the v9fs_list_xattr function in hw/9pfs/9p-xattr.c in QEMU (aka Quick Emulator) allows local guest OS privileged users to cause a denial of service (memory consumption) via vectors involving the orig_value variable.
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-1035-1, DLA-1497-1, DLA-965-1
NVD severitymedium (attack range: local)
Debian Bugs861348

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
qemu (PTS)jessie1:2.1+dfsg-12+deb8u6vulnerable
jessie (security)1:2.1+dfsg-12+deb8u7fixed
stretch1:2.8+dfsg-6+deb9u4fixed
stretch (security)1:2.8+dfsg-6+deb9u5fixed
buster, sid1:2.12+dfsg-3fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
qemusource(unstable)1:2.8+dfsg-5medium861348
qemusourcejessie1:2.1+dfsg-12+deb8u7mediumDLA-1497-1
qemusourcewheezy1.1.2+dfsg-6+deb7u22mediumDLA-1035-1
qemu-kvmsource(unstable)(unfixed)medium
qemu-kvmsourcewheezy1.1.2+dfsg-6+deb7u22mediumDLA-965-1

Notes

Fixed by: http://git.qemu.org/?p=qemu.git;a=commit;h=4ffcdef4277a91af15a3c09f7d16af072c29f3f2 (v2.9.0-rc4)
Introduced possibly by the fix d10142c11bdcecebe97fd834a834167053b7a05c to
partially fix CVE-2016-9602.

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