CVE-2012-3495

MediumCVSS 6.1/10Last modified Jun 16, 2026

Description

The 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 get_free_pirq function as an array index without checking that the return value indicates an error, which allows guest OS users to cause a denial of service (invalid memory write and host crash) and possibly gain privileges via unspecified vectors.

Metrics

CVSS 2.0 6.1/10AV:L/AC:L/Au:N/C:P/I:P/A:C

Weakness enumeration

CWE-20

Affected software

No affected versions have been published.

Timeline

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

Related CVEs from 2012

CVE-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 l CVE-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 at CVE-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 Apac CVE-2012-35039.8The installation script in Katello 1.0 and earlier does not properly generate the Application.config.secret_token value, which causes each d CVE-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 th CVE-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 head CVE-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-2012-35072.6Cross-site scripting (XSS) vulnerability in program/steps/mail/func.inc in RoundCube Webmail before 0.8.0, when using the Larry skin, allows