CVE-2012-3494 · threatengine.sh

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CVE

CVE-2012-3494

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 earlie

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.

LOW · CVSS 2.1 EPSS 0.00112

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No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence

Sigma rules0 YARA rules0

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Affected Products & Versions

2

citrix xenserver<= 6.0.2

xenall versions

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Scoring & Timeline

2.1

LOW · CVSS v2 (legacy) · secalert@redhat.com

View on NVD

This CVE predates CVSS v3; the legacy v2 score is shown so triage still has a severity to work with.

v2 Vector

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

Published to NVD23 Nov 2012 · 08:55 PM

🔗

References & Sources

25

Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.

http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00001.html

http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00003.html

http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00004.html

http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00005.html

http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00012.html

http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00017.html

Show all 25 references

http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00018.html

http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00017.html

http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00018.html

http://lists.xen.org/archives/html/xen-announce/2012-09/msg00000.html

http://osvdb.org/85197

http://secunia.com/advisories/50472Vendor Advisory

http://secunia.com/advisories/50530Vendor Advisory

http://secunia.com/advisories/51413

http://secunia.com/advisories/55082

http://security.gentoo.org/glsa/glsa-201309-24.xml

http://support.citrix.com/article/CTX134708PatchVendor Advisory

http://wiki.xen.org/wiki/Security_Announcements#XSA-12_hypercall_set_debugreg_vulnerability

http://www.debian.org/security/2012/dsa-2544

http://www.openwall.com/lists/oss-security/2012/09/05/5

http://www.securityfocus.com/bid/55400

http://www.securitytracker.com/id?1027479

https://bugzilla.redhat.com/show_bug.cgi?id=851139

https://exchange.xforce.ibmcloud.com/vulnerabilities/78265

https://security.gentoo.org/glsa/201604-03

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