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CVE-2014-7156

Status Candidate

Overview

The x86_emulate function in arch/x86/x86_emulate/x86_emulate.c in Xen 3.3.x through 4.4.x does not check the supervisor mode permissions for instructions that generate software interrupts, which allows local HVM guest users to cause a denial of service (guest crash) via unspecified vectors.

Related Files

Gentoo Linux Security Advisory 201412-42
Posted Dec 29, 2014
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 201412-42 - Multiple vulnerabilities have been found in Xen, possibly resulting in Denial of Service. Versions less than 4.4.1-r2 are affected.

tags | advisory, denial of service, vulnerability
systems | linux, gentoo
advisories | CVE-2014-7154, CVE-2014-7155, CVE-2014-7156, CVE-2014-7188
SHA-256 | 2db7505f2e7bc5f6baa362b0b62538e08d79d4290e93c6e8354e4d02ac99eacf
Debian Security Advisory 3041-1
Posted Oct 1, 2014
Authored by Debian | Site debian.org

Debian Linux Security Advisory 3041-1 - Multiple security issues have been discovered in the Xen virtualisation solution which may result in denial of service, information disclosure or privilege escalation.

tags | advisory, denial of service, info disclosure
systems | linux, debian
advisories | CVE-2013-2072, CVE-2014-7154, CVE-2014-7155, CVE-2014-7156, CVE-2014-7188
SHA-256 | 4907d5b964f09a01c74ae0dc6ff9400295f8a8a13014c446cbbe4712c94984e9
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