CVE-2017-7377

NameCVE-2017-7377
DescriptionThe (1) v9fs_create and (2) v9fs_lcreate functions in hw/9pfs/9p.c in QEMU (aka Quick Emulator) allow local guest OS privileged users to cause a denial of service (file descriptor or memory consumption) via vectors related to an already in-use fid.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SuSE, Mageia, GitHub code/issues, web search, more)
ReferencesDLA-1035-1, DLA-965-1
NVD severitylow (attack range: local)
Debian Bugs859854

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
qemu (PTS)wheezy1.1.2+dfsg-6a+deb7u12vulnerable
wheezy (security)1.1.2+dfsg-6+deb7u24fixed
jessie (security), jessie1:2.1+dfsg-12+deb8u6vulnerable
stretch (security), stretch1:2.8+dfsg-6+deb9u3fixed
buster, sid1:2.10.0+dfsg-2fixed
qemu-kvm (PTS)wheezy1.1.2+dfsg-6+deb7u12vulnerable
wheezy (security)1.1.2+dfsg-6+deb7u24fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
qemusource(unstable)1:2.8+dfsg-4low859854
qemusourcewheezy1.1.2+dfsg-6+deb7u22lowDLA-1035-1
qemu-kvmsource(unstable)(unfixed)low
qemu-kvmsourcewheezy1.1.2+dfsg-6+deb7u22lowDLA-965-1

Notes

[jessie] - qemu <no-dsa> (Minor issue)
https://lists.gnu.org/archive/html/qemu-devel/2017-03/msg05449.html
http://git.qemu-project.org/?p=qemu.git;a=commitdiff;h=d63fb193e71644a073b77ff5ac6f1216f2f6cf6e
http://www.openwall.com/lists/oss-security/2017/04/03/2
For older releases affected code is in hw/9pfs/virtio-9p.c

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