Description
arch/x86/x86_emulate/x86_emulate.c in Xen 3.2.1 through 4.4.x does not properly check privileges, which allows local HVM guest users to gain privileges or cause a denial of service (crash) via a crafted (1) CALL, (2) JMP, (3) RETF, (4) LCALL, (5) LJMP, or (6) LRET far branch instruction.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
n/a n/a
n/aaffected
References
- https://security.gentoo.org/glsa/201504-04 ↗
- http://secunia.com/advisories/62672 ↗
- http://support.citrix.com/article/CTX201794 ↗
- http://support.citrix.com/article/CTX200288 ↗
- http://www.debian.org/security/2015/dsa-3140 ↗
- http://secunia.com/advisories/62537 ↗
- http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00005.html ↗
- http://www.securityfocus.com/bid/71151 ↗
- http://xenbits.xen.org/xsa/advisory-110.html ↗
- http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00010.html ↗
- https://exchange.xforce.ibmcloud.com/vulnerabilities/98768 ↗