PT-2014-4350 · Xen+1 · Xen+1

Matthew Daley · Published 2014-04-01 · Updated 2017-01-07 · CVE-2014-1895

Positive Technologies (AI Summary)

CVSS v2.0

5.8

Medium

Base vector

AV:A/AC:M/Au:S/C:P/I:N/A:C

Name of the Vulnerable Software and Affected Versions Xen versions 4.2.x through 4.3.x

Description The issue is caused by an off-by-one error in the flask security avc cachestats function. This error can be triggered by a FLASK AVC CACHESTAT hypercall when the maximum number of physical CPUs are in use, allowing local users to cause a denial of service (host crash) or obtain sensitive information from hypervisor memory due to a buffer over-read.

Recommendations For Xen versions 4.2.x through 4.3.x, at the moment, there is no information about a newer version that contains a fix for this vulnerability.

DoS

Weakness Enumeration

CWE-189

Related Identifiers

CVE-2014-1895

Affected Products

Suse

Xen

References · 9

• https://security-tracker.debian.org/tracker/CVE-2014-1895 · Vendor Advisory
• http://security.gentoo.org/glsa/glsa-201407-03.xml · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2014-1895 · Security Note
• https://osv.dev/vulnerability/CVE-2014-1895 · Vendor Advisory
• http://xenbits.xen.org/xsa/advisory-85.html · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2014-1895 · Vendor Advisory
• http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00011.html · Vendor Advisory
• http://openwall.com/lists/oss-security/2014/02/10/6 · Note
• http://openwall.com/lists/oss-security/2014/02/07/12 · Note