CVE-2013-4371

Severity: medium (CVSS 4.4 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2013-10-17 · updated 2026-06-16
Weakness: CWE-399

Description

Use-after-free vulnerability in the libxl_list_cpupool function in the libxl toolstack library in Xen 4.2.x and 4.3.x, when running "under memory pressure," returns the original pointer when the realloc function fails, which allows local users to cause a denial of service (heap corruption and crash) and possibly execute arbitrary code via unspecified vectors.

Affected products

xen: 4.2.0, 4.2.1, 4.2.2, 4.2.3, 4.3.0

References

http://security.gentoo.org/glsa/glsa-201407-03.xml
http://www.openwall.com/lists/oss-security/2013/10/10/12
http://security.gentoo.org/glsa/glsa-201407-03.xml
http://www.openwall.com/lists/oss-security/2013/10/10/12

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