CVE-2015-8745

NameCVE-2015-8745
DescriptionQEMU (aka Quick Emulator) built with a VMWARE VMXNET3 paravirtual NIC emulator support is vulnerable to crash issue. It could occur while reading Interrupt Mask Registers (IMR). A privileged (CAP_SYS_RAWIO) guest user could use this flaw to crash the QEMU process instance resulting in DoS.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SuSE, Mageia, GitHub code/issues, web search, more)
ReferencesDSA-3471-1
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+deb7u23fixed
jessie, jessie (security)1:2.1+dfsg-12+deb8u6fixed
stretch1:2.8+dfsg-6fixed
stretch (security)1:2.8+dfsg-6+deb9u2fixed
buster, sid1:2.8+dfsg-7fixed
qemu-kvm (PTS)wheezy1.1.2+dfsg-6+deb7u12fixed
wheezy (security)1.1.2+dfsg-6+deb7u23fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
qemusource(unstable)1:2.5+dfsg-1low
qemusourcejessie1:2.1+dfsg-12+deb8u5alowDSA-3471-1
qemusourcesqueeze(not affected)
qemusourcewheezy(not affected)
qemu-kvmsource(unstable)(not affected)

Notes

[wheezy] - qemu <not-affected> (Vulnerable code introduced later)
[squeeze] - qemu <not-affected> (Vulnerable code introduced later)
- qemu-kvm <not-affected> (Vulnerable code not present)
Fixed by: http://git.qemu.org/?p=qemu.git;a=commit;h=c6048f849c7e3f009786df76206e895a69de032c (v2.5.0-rc0)
VMXNET3 device implementation introduced in http://git.qemu.org/?p=qemu.git;a=commit;h=786fd2b0f87baded8c9e55307b99719eea3e016e (v1.5.0-rc0)

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