CVE-2012-3494

LowCVSS 2.1/10Last modified Jun 16, 2026

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.

Metrics

CVSS 2.0 2.1/10AV:L/AC:L/Au:N/C:N/I:N/A:P

Weakness enumeration

CWE-264

Affected software

VendorProductVersions
n/an/an/a

References

Timeline

Published
Nov 23, 2012
Last modified
Jun 16, 2026
NVD status
Modified

Related CVEs from 2012

CVE-2012-34956.1The physdev_get_free_pirq hypercall in arch/x86/physdev.c in Xen 4.1.x and Citrix XenServer 6.0.2 and earlier uses the return value of the gCVE-2012-34964.7XENMEM_populate_physmap in Xen 4.0, 4.1, and 4.2, and Citrix XenServer 6.0.2 and earlier, when translating paging mode is not used, allows lCVE-2012-34976.9(1) TMEMC_SAVE_GET_CLIENT_WEIGHT, (2) TMEMC_SAVE_GET_CLIENT_CAP, (3) TMEMC_SAVE_GET_CLIENT_FLAGS and (4) TMEMC_SAVE_END in the Transcendent CVE-2012-34985.6PHYSDEVOP_map_pirq in Xen 4.1 and 4.2 and Citrix XenServer 6.0.2 and earlier allows local HVM guest OS kernels to cause a denial of service CVE-2012-34994.3Multiple cross-site scripting (XSS) vulnerabilities in the Apache HTTP Server 2.2.x before 2.2.24-dev and 2.4.x before 2.4.4 allow remote atCVE-2012-35001.2scripts/annotate-output.sh in devscripts before 2.12.2, as used in rpmdevtools before 8.3, allows local users to modify arbitrary files via CVE-2012-35015.0The squidclamav_check_preview_handler function in squidclamav.c in SquidClamav 5.x before 5.8 and 6.x before 6.7 passes an unescaped URL to CVE-2012-35024.3The proxy functionality in (1) mod_proxy_ajp.c in the mod_proxy_ajp module and (2) mod_proxy_http.c in the mod_proxy_http module in the ApacCVE-2012-35039.8The installation script in Katello 1.0 and earlier does not properly generate the Application.config.secret_token value, which causes each dCVE-2012-35043.6The nssconfigFound function in genkey.pl in crypto-utils 2.4.1-34 allows local users to overwrite arbitrary files via a symlink attack on thCVE-2012-35055.0Tinyproxy 1.8.3 and earlier allows remote attackers to cause a denial of service (CPU and memory consumption) via (1) a large number of headCVE-2012-350610.0Unspecified vulnerability in the Apache Open For Business Project (aka OFBiz) 10.04.x before 10.04.03 has unknown impact and attack vectors.
CVE-2012-3494: Low severity, CVSS 2.1 | Vulnix