Input validation error in SUSE products - CVE-2014-8595
Published: November 19, 2014 / Updated: August 9, 2020
Vulnerability identifier: #VU41090
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2014-8595
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Debian
Xen Project
SUSE
Xen Project
SUSE
Affected software:
Debian Linux
Opensuse
Xen
Debian Linux
Opensuse
Xen
Detailed vulnerability description
The vulnerability allows a remote non-authenticated attacker to perform service disruption.
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.
How to mitigate CVE-2014-8595
Install update from vendor's website.
Sources
- http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00005.html
- http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00010.html
- http://secunia.com/advisories/62537
- http://secunia.com/advisories/62672
- http://support.citrix.com/article/CTX200288
- http://support.citrix.com/article/CTX201794
- http://www.debian.org/security/2015/dsa-3140
- http://www.securityfocus.com/bid/71151
- http://xenbits.xen.org/xsa/advisory-110.html
- https://exchange.xforce.ibmcloud.com/vulnerabilities/98768
- https://security.gentoo.org/glsa/201504-04