CVE-2015-4106

NameCVE-2015-4106
DescriptionQEMU does not properly restrict write access to the PCI config space for certain PCI pass-through devices, which might allow local x86 HVM guests to gain privileges, cause a denial of service (host crash), obtain sensitive information, or possibly have other unspecified impact via unknown vectors.
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)
ReferencesDSA-3284-1, DSA-3286-1
NVD severityhigh (attack range: local)
Debian Bugs787547

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
qemu (PTS)jessie1:2.1+dfsg-12+deb8u6fixed
jessie (security)1:2.1+dfsg-12+deb8u11fixed
stretch (security), stretch1:2.8+dfsg-6+deb9u5fixed
buster, sid1:3.1+dfsg-7fixed
xen (PTS)jessie4.4.1-9+deb8u10fixed
jessie (security)4.4.4lts4-0+deb8u1fixed
stretch (security), stretch4.8.5+shim4.10.2+xsa282-1+deb9u11fixed
buster, sid4.11.1+26-g87f51bf366-3fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
qemusource(unstable)1:2.3+dfsg-5high787547
qemusourcejessie1:2.1+dfsg-12+deb8u1highDSA-3284-1
qemusourcesqueeze(not affected)
qemusourcewheezy(not affected)
qemu-kvmsource(unstable)(not affected)
xensource(unstable)4.4.0-1high
xensourcejessie4.4.1-9+deb8u1highDSA-3286-1
xensourcesqueeze(unfixed)end-of-life
xensourcewheezy4.1.4-3+deb7u8highDSA-3286-1

Notes

[wheezy] - qemu <not-affected> (Vulnerable code not present)
[squeeze] - qemu <not-affected> (Vulnerable code not present)
- qemu-kvm <not-affected> (Vulnerable code not present)
[squeeze] - xen <end-of-life> (Not supported in Squeeze LTS)
Xen switched to qemu-system in 4.4.0-1
http://xenbits.xen.org/xsa/advisory-131.html

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