#VU32593 Buffer overflow in libvirt - CVE-2013-4296

Vulnerability identifier: #VU32593

Vulnerability risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2013-4296

CWE-ID: CWE-119

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
libvirt
Universal components / Libraries / Libraries used by multiple products

Vendor: libvirt.org

Description

The vulnerability allows a remote #AU# to perform service disruption.

The remoteDispatchDomainMemoryStats function in daemon/remote.c in libvirt 0.9.1 through 0.10.1.x, 0.10.2.x before 0.10.2.8, 1.0.x before 1.0.5.6, and 1.1.x before 1.1.2 allows remote authenticated users to cause a denial of service (uninitialized pointer dereference and crash) via a crafted RPC call.

Mitigation
Install update from vendor's website.

Vulnerable software versions

libvirt: 0.9.1 - 0.9.11

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External links
https://libvirt.org/git/?p=libvirt.git;a=commit;h=e7f400a110e2e3673b96518170bfea0855dd82c0
https://lists.opensuse.org/opensuse-updates/2013-10/msg00023.html
https://lists.opensuse.org/opensuse-updates/2013-10/msg00024.html
https://rhn.redhat.com/errata/RHSA-2013-1272.html
https://rhn.redhat.com/errata/RHSA-2013-1460.html
https://secunia.com/advisories/60895
https://security.gentoo.org/glsa/glsa-201412-04.xml
https://wiki.libvirt.org/page/Maintenance_Releases
https://www.debian.org/security/2013/dsa-2764
https://www.ubuntu.com/usn/USN-1954-1
https://bugzilla.redhat.com/show_bug.cgi?id=1006173

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.