Off-by-one error in the flask_security_avc_cachestats function in xsm/flask/flask_op.c in Xen 4.2.x and 4.3.x, when the maximum number of…

Description

Off-by-one error in the flask_security_avc_cachestats function in xsm/flask/flask_op.c in Xen 4.2.x and 4.3.x, when the maximum number of physical CPUs are in use, allows local users to cause a denial of service (host crash) or obtain sensitive information from hypervisor memory by leveraging a FLASK_AVC_CACHESTAT hypercall, which triggers a buffer over-read.

Scores

EPSS (exploitation in 30 days)

0.53% · top 55% of all CVEs (4 Nov 2026)

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.8.

Weakness

• n/a
• CWE-189 (opens in a new tab)All about CWE-189 and its CVEs

Affected products

• n/a

  • affected n/a

References (5)

• SUSE-SU-2014:0373 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
• GLSA-201407-03 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
• http://xenbits.xen.org/xsa/advisory-85.html (opens in a new tab)x_refsource_CONFIRMx_transferred
• [oss-security] 20140207 Re: Xen Security Advisory 84 - integer overflow in several XSM/Flask hypercalls (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
• [oss-security] 20140210 Xen Security Advisory 85 (CVE-2014-1895) - Off-by-one error in FLASK_AVC_CACHESTAT hypercall (opens in a new tab)mailing-listx_refsource_MLISTx_transferred

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2014-1895](https://trackcve.app/badge/CVE-2014-1895.svg)](https://trackcve.app/cve/CVE-2014-1895)

Record last updated 6 Aug 2024, 09:58 UTC.