CVE-2016-9637

NameCVE-2016-9637
DescriptionThe (1) ioport_read and (2) ioport_write functions in Xen, when qemu is used as a device model within Xen, might allow local x86 HVM guest OS administrators to gain qemu process privileges via vectors involving an out-of-range ioport access.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SuSE, 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
qemu (PTS)wheezy1.1.2+dfsg-6a+deb7u12fixed
wheezy (security)1.1.2+dfsg-6+deb7u24fixed
jessie (security), jessie1:2.1+dfsg-12+deb8u6fixed
stretch (security), stretch1:2.8+dfsg-6+deb9u3fixed
buster, sid1:2.10.0+dfsg-2fixed
qemu-kvm (PTS)wheezy1.1.2+dfsg-6+deb7u12fixed
wheezy (security)1.1.2+dfsg-6+deb7u24fixed
xen (PTS)wheezy4.1.4-3+deb7u9vulnerable
wheezy (security)4.1.6.lts1-10vulnerable
jessie (security), jessie4.4.1-9+deb8u10fixed
buster, sid, stretch (security), stretch4.8.2+xsa245-0+deb9u1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
qemusource(unstable)(not affected)
qemu-kvmsource(unstable)(not affected)
xensource(unstable)4.4.0-1low

Notes

- qemu <not-affected> (Vulnerability specific to Xen)
- qemu-kvm <not-affected> (Vulnerability specific to Xen)
Xen switched to qemu-system in 4.4.0-1
https://xenbits.xen.org/xsa/advisory-199.html

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