CVE-2014-7156

Sažetak

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.

Reference

http://lists.fedoraproject.org/pipermail/package-announce/2014-October/140418.html
http://lists.fedoraproject.org/pipermail/package-announce/2014-October/140483.html
http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00002.html
http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00003.html
http://secunia.com/advisories/61500
http://secunia.com/advisories/61858
http://secunia.com/advisories/61890
http://security.gentoo.org/glsa/glsa-201412-42.xml
http://support.citrix.com/article/CTX200218
http://www.debian.org/security/2014/dsa-3041
http://www.securityfocus.com/bid/70062
http://www.securitytracker.com/id/1030889
http://xenbits.xen.org/xsa/advisory-106.html

CVSS

Base:	3.3
Impact:	2.9
Exploitability:	6.5

Pristup

Vektor	Složenost	Autentikacija
ADJACENT_NETWORK	LOW	NONE

Impact

Povjerljivost	Cjelovitost	Dostupnost
NONE	NONE	PARTIAL

CVSS vektor

AV:A/AC:L/Au:N/C:N/I:N/A:P

Zadnje važnije ažuriranje

30-10-2018 - 16:26

Objavljeno

02-10-2014 - 14:55