What’s Vulnerable › Vulnerabilities

CVE-2013-1920

• 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: 2013-04-12 · updated 2026-06-16
• Weakness: CWE-264

Description

Xen 4.2.x, 4.1.x, and earlier, when the hypervisor is running "under memory pressure" and the Xen Security Module (XSM) is enabled, uses the wrong ordering of operations when extending the per-domain event channel tracking table, which causes a use-after-free and allows local guest kernels to inject arbitrary events and gain privileges via unspecified vectors.

Affected products

• xen: 3.0.2, 3.0.3, 3.0.4, 3.1.3, 3.1.4, 3.2.0 (+23)

References

• http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00015.html
• http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00021.html
• http://lists.opensuse.org/opensuse-security-announce/2014-04/msg00000.html
• http://lists.opensuse.org/opensuse-updates/2013-06/msg00049.html
• http://lists.xen.org/archives/html/xen-announce/2013-04/msg00000.html
• http://osvdb.org/92050
• http://secunia.com/advisories/52857
• http://secunia.com/advisories/55082
• http://security.gentoo.org/glsa/glsa-201309-24.xml
• http://www.openwall.com/lists/oss-security/2013/04/04/7
• http://www.securityfocus.com/bid/58880
• http://www.securitytracker.com/id/1028388

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