CVE-2011-1763

The get_free_port function in Xen allows local authenticated DomU users to cause a denial of...

7.7 HighFix available

The get_free_port function in Xen allows local authenticated DomU users to cause a denial of service or possibly gain privileges via unspecified vectors involving a new event channel port.

Exploit likelihood

0.56%Down 0.3 points since Feb 4, 2022

What each source reports

NVD Score used 7.7

The get_free_port function in Xen allows local authenticated DomU users to cause a denial of service or possibly gain privileges via unspecified vectors involving a new event channel port.

Record: CVE-2011-1763
CVSS 2.0: 7.7 HighAV:A/AC:L/Au:S/C:C/I:C/A:C
Updated: 2026-11-02

CVE List No score

The get_free_port function in Xen allows local authenticated DomU users to cause a denial of service or possibly gain privileges via unspecified vectors involving a new event channel port.

Record: CVE-2011-1763
Updated: 2026-11-02

EUVDEUVD-2011-1762 No score

The get_free_port function in Xen allows local authenticated DomU users to cause a denial of service or possibly gain privileges via unspecified vectors involving a new event channel port.

Record: EUVD-2011-1762
Updated: 2026-11-03

GitHub AdvisoriesGHSA-2xx5-rm9h-fw44 No score

The get_free_port function in Xen allows local authenticated DomU users to cause a denial of...

The get_free_port function in Xen allows local authenticated DomU users to cause a denial of service or possibly gain privileges via unspecified vectors involving a new event channel port.

Record: GHSA-2xx5-rm9h-fw44
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`kernel` Red Hat:enterprise_linux:5::server	before 0:2.6.18-238.12.1.el5	0:2.6.18-238.12.1.el5
`kernel-PAE` Red Hat:enterprise_linux:5::server	before 0:2.6.18-238.12.1.el5	0:2.6.18-238.12.1.el5
`kernel-PAE-debuginfo` Red Hat:enterprise_linux:5::server	before 0:2.6.18-238.12.1.el5	0:2.6.18-238.12.1.el5
`kernel-PAE-devel` Red Hat:enterprise_linux:5::server	before 0:2.6.18-238.12.1.el5	0:2.6.18-238.12.1.el5
`kernel-debug` Red Hat:enterprise_linux:5::server	before 0:2.6.18-238.12.1.el5	0:2.6.18-238.12.1.el5
`kernel-debug-debuginfo` Red Hat:enterprise_linux:5::server	before 0:2.6.18-238.12.1.el5	0:2.6.18-238.12.1.el5
`kernel-debug-devel` Red Hat:enterprise_linux:5::server	before 0:2.6.18-238.12.1.el5	0:2.6.18-238.12.1.el5
`kernel-debuginfo` Red Hat:enterprise_linux:5::server	before 0:2.6.18-238.12.1.el5	0:2.6.18-238.12.1.el5
`kernel-debuginfo-common` Red Hat:enterprise_linux:5::server	before 0:2.6.18-238.12.1.el5	0:2.6.18-238.12.1.el5
`kernel-devel` Red Hat:enterprise_linux:5::server	before 0:2.6.18-238.12.1.el5	0:2.6.18-238.12.1.el5

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Affected packages
Package	Affected	Fixed
`kernel-doc` Red Hat:enterprise_linux:5::server	before 0:2.6.18-238.12.1.el5	0:2.6.18-238.12.1.el5
`kernel-kdump` Red Hat:enterprise_linux:5::server	before 0:2.6.18-238.12.1.el5	0:2.6.18-238.12.1.el5
`kernel-kdump-debuginfo` Red Hat:enterprise_linux:5::server	before 0:2.6.18-238.12.1.el5	0:2.6.18-238.12.1.el5
`kernel-kdump-devel` Red Hat:enterprise_linux:5::server	before 0:2.6.18-238.12.1.el5	0:2.6.18-238.12.1.el5
`kernel-xen` Red Hat:enterprise_linux:5::server	before 0:2.6.18-238.12.1.el5	0:2.6.18-238.12.1.el5
`kernel-xen-debuginfo` Red Hat:enterprise_linux:5::server	before 0:2.6.18-238.12.1.el5	0:2.6.18-238.12.1.el5
`kernel-xen-devel` Red Hat:enterprise_linux:5::server	before 0:2.6.18-238.12.1.el5	0:2.6.18-238.12.1.el5

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2011-1763 is a high vulnerability (CVSS 7.7) in Xen, published January 7, 2014. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.56%, the 46th percentile. Fixed in kernel 0:2.6.18-238.12.1.el5.

References

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