CVE-2014-8595
First published: Wed Nov 19 2014(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Debian GNU/Linux | =7.0 | |
| Xen xen-unstable | =3.2.1 | |
| Xen xen-unstable | =3.2.2 | |
| Xen xen-unstable | =3.2.3 | |
| Xen xen-unstable | =3.3.0 | |
| Xen xen-unstable | =3.3.1 | |
| Xen xen-unstable | =3.3.2 | |
| Xen xen-unstable | =3.4.0 | |
| Xen xen-unstable | =3.4.1 | |
| Xen xen-unstable | =3.4.2 | |
| Xen xen-unstable | =3.4.3 | |
| Xen xen-unstable | =3.4.4 | |
| Xen xen-unstable | =4.0.0 | |
| Xen xen-unstable | =4.0.1 | |
| Xen xen-unstable | =4.0.2 | |
| Xen xen-unstable | =4.0.3 | |
| Xen xen-unstable | =4.0.4 | |
| Xen xen-unstable | =4.1.0 | |
| Xen xen-unstable | =4.1.1 | |
| Xen xen-unstable | =4.1.2 | |
| Xen xen-unstable | =4.1.3 | |
| Xen xen-unstable | =4.1.4 | |
| Xen xen-unstable | =4.1.5 | |
| Xen xen-unstable | =4.1.6.1 | |
| Xen xen-unstable | =4.2.0 | |
| Xen xen-unstable | =4.2.1 | |
| Xen xen-unstable | =4.2.2 | |
| Xen xen-unstable | =4.2.3 | |
| Xen xen-unstable | =4.3.0 | |
| Xen xen-unstable | =4.3.1 | |
| Xen xen-unstable | =4.4.0 | |
| openSUSE | =13.1 | |
| openSUSE | =13.2 |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
- 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
Frequently Asked Questions
What is the severity of CVE-2014-8595?
The severity of CVE-2014-8595 is classified as high due to its potential to allow local users to gain elevated privileges.
How do I fix CVE-2014-8595?
To fix CVE-2014-8595, you should upgrade to a version of Xen later than 4.4.x or apply security patches provided by your operating system vendor.
What types of systems are affected by CVE-2014-8595?
CVE-2014-8595 affects various versions of Xen hypervisor, specifically versions from 3.2.1 up to 4.4.x.
Can CVE-2014-8595 lead to denial of service?
Yes, CVE-2014-8595 can cause a denial of service by allowing a local HVM guest user to crash the system.
Is it safe to continue using affected Xen versions with CVE-2014-8595?
It is not safe to continue using affected Xen versions as they expose systems to potential privilege escalation and denial of service attacks.
- agent/type
- agent/references
- agent/author
- agent/severity
- agent/weakness
- agent/remedy
- agent/description
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/event
- agent/first-publish-date
- agent/source
- agent/softwarecombine
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/debian
- canonical/debian gnu/linux
- version/debian gnu/linux/7.0
- vendor/xen
- canonical/xen xen-unstable
- version/xen xen-unstable/3.2.1
- version/xen xen-unstable/3.2.2
- version/xen xen-unstable/3.2.3
- version/xen xen-unstable/3.3.0
- version/xen xen-unstable/3.3.1
- version/xen xen-unstable/3.3.2
- version/xen xen-unstable/3.4.0
- version/xen xen-unstable/3.4.1
- version/xen xen-unstable/3.4.2
- version/xen xen-unstable/3.4.3
- version/xen xen-unstable/3.4.4
- version/xen xen-unstable/4.0.0
- version/xen xen-unstable/4.0.1
- version/xen xen-unstable/4.0.2
- version/xen xen-unstable/4.0.3
- version/xen xen-unstable/4.0.4
- version/xen xen-unstable/4.1.0
- version/xen xen-unstable/4.1.1
- version/xen xen-unstable/4.1.2
- version/xen xen-unstable/4.1.3
- version/xen xen-unstable/4.1.4
- version/xen xen-unstable/4.1.5
- version/xen xen-unstable/4.1.6.1
- version/xen xen-unstable/4.2.0
- version/xen xen-unstable/4.2.1
- version/xen xen-unstable/4.2.2
- version/xen xen-unstable/4.2.3
- version/xen xen-unstable/4.3.0
- version/xen xen-unstable/4.3.1
- version/xen xen-unstable/4.4.0
- vendor/opensuse
- canonical/opensuse
- version/opensuse/13.1
- version/opensuse/13.2