CVE-2012-3494
Xen/Citrix XenServer Debug Register Hypercall Use-After-Free Denial of Service
Description
The set_debugreg hypercall in include/asm-x86/debugreg.h in Xen 4.0, 4.1, and 4.2, and Citrix XenServer 6.0.2 and earlier, when running on x86-64 systems, allows local OS guest users to cause a denial of service (host crash) by writing to the reserved bits of the DR7 debug control register.
INFO
Published Date :
Nov. 23, 2012, 8:55 p.m.
Last Modified :
Nov. 21, 2024, 1:40 a.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
2.9
Exploitability Score :
3.9
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2012-3494.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2012-3494 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2012-3494 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00001.html Added Reference http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00003.html Added Reference http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00004.html Added Reference http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00005.html Added Reference http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00012.html Added Reference http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00017.html Added Reference http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00018.html Added Reference http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00017.html Added Reference http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00018.html Added Reference http://lists.xen.org/archives/html/xen-announce/2012-09/msg00000.html Added Reference http://osvdb.org/85197 Added Reference http://secunia.com/advisories/50472 Added Reference http://secunia.com/advisories/50530 Added Reference http://secunia.com/advisories/51413 Added Reference http://secunia.com/advisories/55082 Added Reference http://security.gentoo.org/glsa/glsa-201309-24.xml Added Reference http://support.citrix.com/article/CTX134708 Added Reference http://wiki.xen.org/wiki/Security_Announcements#XSA-12_hypercall_set_debugreg_vulnerability Added Reference http://www.debian.org/security/2012/dsa-2544 Added Reference http://www.openwall.com/lists/oss-security/2012/09/05/5 Added Reference http://www.securityfocus.com/bid/55400 Added Reference http://www.securitytracker.com/id?1027479 Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=851139 Added Reference https://exchange.xforce.ibmcloud.com/vulnerabilities/78265 Added Reference https://security.gentoo.org/glsa/201604-03 -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Aug. 29, 2017
Action Type Old Value New Value Removed Reference http://xforce.iss.net/xforce/xfdb/78265 [No Types Assigned] Added Reference https://exchange.xforce.ibmcloud.com/vulnerabilities/78265 [No Types Assigned] -
CVE Modified by [email protected]
Jul. 01, 2017
Action Type Old Value New Value Added Reference https://security.gentoo.org/glsa/201604-03 [No Types Assigned] -
Initial Analysis by [email protected]
Nov. 26, 2012
Action Type Old Value New Value
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2012-3494 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2012-3494
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.11 }} -0.01%
score
0.26571
percentile