Permissions, Privileges, and Access Controls in libvirt

1) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU43975

Risk: Medium

CVSSv4.0: 0.5 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2012-2693

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to read and manipulate data.

libvirt, possibly before 0.9.12, does not properly assign USB devices to virtual machines when multiple devices have the same vendor and product ID, which might cause the wrong device to be associated with a guest and might allow local users to access unintended USB devices.

Mitigation

Install update from vendor's website.

Vulnerable software versions

libvirt: 0.0.1 - 0.9.10

CPE2.3

• cpe:2.3:a:libvirt_org:libvirt:0.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:libvirt_org:libvirt:0.0.2:*:*:*:*:*:*:*
• cpe:2.3:a:libvirt_org:libvirt:0.0.3:*:*:*:*:*:*:*

External links

https://rhn.redhat.com/errata/RHSA-2012-0748.html
https://rhn.redhat.com/errata/RHSA-2013-0127.html
https://www.openwall.com/lists/oss-security/2012/06/11/2
https://www.openwall.com/lists/oss-security/2012/06/11/3
https://www.redhat.com/archives/libvir-list/2012-April/msg01494.html

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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