CVE-2014-3633

Severity: medium (CVSS 5.8 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.8% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2014-10-06 · updated 2026-06-17
Weakness: CWE-119

Description

The qemuDomainGetBlockIoTune function in qemu/qemu_driver.c in libvirt before 1.2.9, when a disk has been hot-plugged or removed from the live image, allows remote attackers to cause a denial of service (crash) or read sensitive heap information via a crafted blkiotune query, which triggers an out-of-bounds read.

Affected products

Canonical Ubuntu Linux: 10.04, 12.04, 14.04
Libvirt: through 1.2.8; 1.2.0, 1.2.1, 1.2.2, 1.2.3, 1.2.4, 1.2.5 (+2)

References

http://libvirt.org/git/?p=libvirt.git%3Ba=commitdiff%3Bh=3e745e8f775dfe6f64f18b5c2fe4791b35d3546b
http://lists.opensuse.org/opensuse-updates/2014-10/msg00014.html
http://lists.opensuse.org/opensuse-updates/2014-10/msg00017.html
http://rhn.redhat.com/errata/RHSA-2014-1352.html
http://secunia.com/advisories/60291
http://secunia.com/advisories/60895
http://security.gentoo.org/glsa/glsa-201412-04.xml
http://security.libvirt.org/2014/0004.html
http://www.debian.org/security/2014/dsa-3038
http://www.ubuntu.com/usn/USN-2366-1
http://libvirt.org/git/?p=libvirt.git%3Ba=commitdiff%3Bh=3e745e8f775dfe6f64f18b5c2fe4791b35d3546b
http://lists.opensuse.org/opensuse-updates/2014-10/msg00014.html

Get alerted when CVE-2014-3633 or the next vulnerability affects your stack