CVE-2014-1642

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: 2014-01-26 · updated 2026-06-17
Weakness: CWE-399

Description

The IRQ setup in Xen 4.2.x and 4.3.x, when using device passthrough and configured to support a large number of CPUs, frees certain memory that may still be intended for use, which allows local guest administrators to cause a denial of service (memory corruption and hypervisor crash) and possibly execute arbitrary code via vectors related to an out-of-memory error that triggers a (1) use-after-free or (2) double free.

Affected products

xen: 4.2.0, 4.2.1, 4.2.2, 4.2.3, 4.3.0, 4.3.1

References

http://lists.fedoraproject.org/pipermail/package-announce/2014-February/127580.html
http://lists.fedoraproject.org/pipermail/package-announce/2014-February/127607.html
http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00011.html
http://osvdb.org/102406
http://secunia.com/advisories/56557
http://security.gentoo.org/glsa/glsa-201407-03.xml
http://www.openwall.com/lists/oss-security/2014/01/23/4
http://www.securityfocus.com/bid/65097
http://www.securitytracker.com/id/1029679
http://xenbits.xen.org/xsa/advisory-83.html
https://exchange.xforce.ibmcloud.com/vulnerabilities/90649
http://lists.fedoraproject.org/pipermail/package-announce/2014-February/127580.html

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