#VU42519 Buffer overflow in libvirt - CVE-2013-4239

Vulnerability identifier: #VU42519

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-2013-4239

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 xenDaemonListDefinedDomains function in xen/xend_internal.c in libvirt 1.1.1 allows remote authenticated users to cause a denial of service (memory corruption and crash) via vectors involving the virConnectListDefinedDomains API function.

Mitigation
Install update from vendor's website.

Vulnerable software versions

libvirt: 1.1.1

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External links
https://libvirt.org/git/?p=libvirt.git;a=commitdiff;h=0e671a16
https://libvirt.org/news.html
https://www.openwall.com/lists/oss-security/2013/08/12/12
https://bugzilla.redhat.com/show_bug.cgi?id=996241

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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.