Buffer overflow in Xen

1) Buffer overflow

EUVDB-ID: #VU32656

Risk: Low

CVSSv4.0: 4.6 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2013-1918

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a local non-authenticated attacker to perform a denial of service (DoS) attack.

Certain page table manipulation operations in Xen 4.1.x, 4.2.x, and earlier are not preemptible, which allows local PV kernels to cause a denial of service via vectors related to "deep page table traversal."

Mitigation

Install update from vendor's website.

Vulnerable software versions

Xen: 4.24

CPE2.3

• cpe:2.3:a:xen_project:xen:4.24:*:*:*:*:*:*:*

External links

https://lists.fedoraproject.org/pipermail/package-announce/2013-May/105533.html
https://lists.opensuse.org/opensuse-security-announce/2014-03/msg00021.html
https://secunia.com/advisories/53187
https://secunia.com/advisories/55082
https://security.gentoo.org/glsa/glsa-201309-24.xml
https://www.debian.org/security/2013/dsa-2666
https://www.openwall.com/lists/oss-security/2013/05/02/8
https://www.securityfocus.com/bid/59615

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.