PT-2014-4379 · Xen+1 · Xen+1

Andrew Cooper · Published 2014-02-14 · Updated 2014-12-12 · CVE-2014-1950

Positive Technologies (AI Summary)

CVSS v2.0

4.6

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Xen versions 4.1.x through 4.3.x

Description The issue is related to a use-after-free vulnerability in the xc cpupool getinfo function. This vulnerability can be exploited by local users with access to management functions, potentially leading to a denial of service (heap corruption) and possibly allowing them to gain privileges via unspecified vectors. The vulnerability is triggered when using a multithreaded toolstack and the xc cpumap alloc function fails.

Recommendations For Xen versions 4.1.x through 4.3.x, consider restricting access to management functions to minimize the risk of exploitation until a patch is available. As a temporary workaround, avoid using the xc cpupool getinfo function in multithreaded environments. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

DoS

Weakness Enumeration

CWE-399

Related Identifiers

CVE-2014-1950

DSA-3006-1

Affected Products

Suse

Xen

References · 9

• http://xenbits.xen.org/xsa/advisory-88.html · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2014-1950 · Vendor Advisory
• http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00010.html · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2014-1950 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2014-1950 · Vendor Advisory
• http://debian.org/security/2014/dsa-3006 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2014-1950 · Security Note
• http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00011.html · Vendor Advisory
• http://openwall.com/lists/oss-security/2014/02/12/17 · Note