#VU42038 Use-after-free in Xen - CVE-2014-1950

Vulnerability identifier: #VU42038

Vulnerability risk: Medium

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

CVE-ID: CVE-2014-1950

CWE-ID: CWE-416

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Xen
Server applications / Virtualization software

Vendor: Xen Project

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error when processing unspecified vectors. A local users with access to management functions can cause a denial of service (heap corruption) and possibly gain privileges.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.

Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

Xen: 4.1.1 - 4.3.1

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External links
https://lists.opensuse.org/opensuse-security-announce/2014-03/msg00010.html
https://lists.opensuse.org/opensuse-security-announce/2014-03/msg00011.html
https://www.debian.org/security/2014/dsa-3006
https://www.openwall.com/lists/oss-security/2014/02/12/17
https://xenbits.xen.org/xsa/advisory-88.html

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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