CVE-2015-4164

Sažetak

The compat_iret function in Xen 3.1 through 4.5 iterates the wrong way through a loop, which allows local 32-bit PV guest administrators to cause a denial of service (large loop and system hang) via a hypercall_iret call with EFLAGS.VM set.

Reference

http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00004.html
http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00007.html
http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00029.html
http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00030.html
http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00014.html
http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00027.html
http://support.citrix.com/article/CTX201145
http://www.debian.org/security/2015/dsa-3286
http://www.securityfocus.com/bid/75149
http://www.securitytracker.com/id/1032569
http://xenbits.xen.org/xsa/advisory-136.html
https://security.gentoo.org/glsa/201604-03

CVSS

Base:	4.9
Impact:	6.9
Exploitability:	3.9

Pristup

Vektor	Složenost	Autentikacija
LOCAL	LOW	NONE

Impact

Povjerljivost	Cjelovitost	Dostupnost
NONE	NONE	COMPLETE

CVSS vektor

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

Zadnje važnije ažuriranje

30-10-2018 - 16:26

Objavljeno

15-06-2015 - 15:59