#VU45011 Resource management error in libvirt - CVE-2011-1486

Vulnerability identifier: #VU45011

Vulnerability risk: Low

CVSSv4.0: 1.3 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2011-1486

CWE-ID: CWE-399

Exploitation vector: Local network

Exploit availability: No

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

Vendor: libvirt.org

Description

The vulnerability allows a remote non-authenticated attacker to perform service disruption.

libvirtd in libvirt before 0.9.0 does not use thread-safe error reporting, which allows remote attackers to cause a denial of service (crash) by causing multiple threads to report errors at the same time.

Mitigation
Install update from vendor's website.

Vulnerable software versions

libvirt: 0.0.1 - 0.8.7

---

External links
https://libvirt.org/git/?p=libvirt.git;a=commit;h=f44bfb7fb978c9313ce050a1c4149bf04aa0a670
https://secunia.com/advisories/44459
https://securitytracker.com/id?1025477
https://support.avaya.com/css/P8/documents/100134583
https://www.debian.org/security/2011/dsa-2280
https://www.redhat.com/support/errata/RHSA-2011-0478.html
https://www.redhat.com/support/errata/RHSA-2011-0479.html
https://www.securityfocus.com/bid/47148
https://www.ubuntu.com/usn/USN-1152-1
https://bugzilla.redhat.com/show_bug.cgi?id=693391
https://www.redhat.com/archives/libvir-list/2011-March/msg01087.html

---

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

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