Xen code execution
|xen-cve20131920-code-exec (83226)||High Risk|
Xen could allow a local attacker to execute arbitrary code on the system, caused by an error when extending the per-domain event channel tracking table. If the hypervisor is under memory pressure and XSM (Xen Security Module) is enabled, an attacker could exploit this vulnerability to execute arbitrary code on the system.
Refer to XSA-47 for patch, upgrade or suggested workaround information. See References.
- oss-sec mailing list, Thu, 04 Apr 2013 17:57:19 +0000: Xen Security Advisory 47 (CVE-2013-1920) - Potential use of freed memory in event channel operations.
- XSA-47: Xen Security Advisory 43 (CVE-2013-0231) - Linux pciback DoS via not rate limited log messages..
- BID-58880: Xen CVE-2013-1920 Memory Corruption Vulnerability
- CVE-2013-1920: 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.
- SA52857: Xen Event Channel Operations Privilege Escalation Vulnerability
- XenSource Xen 3.2
- XenSource Xen 3.3.0
- XenSource Xen 4.0.0
- XenSource Xen 4.1.1
- XenSource Xen 4.1.2
Apr 04, 2013
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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.