PT-2012-6222 · Xen · Xen

Published 2012-11-23 · Updated 2017-08-29 · CVE-2012-6031

Positive Technologies (AI Summary)

CVSS v2.0

4.7

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Xen versions 4.0 through 4.2

Description The issue allows local guest OS users to cause a denial of service, resulting in a CPU hang and host crash. This is related to a spinlock being held in the "bad copy error path" of the do tmem get function in the Transcendent Memory (TMEM).

Recommendations For Xen versions 4.0 through 4.2, consider disabling the do tmem get function as a temporary workaround to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

RCE

Weakness Enumeration

CWE-20

Related Identifiers

CVE-2012-6031

Affected Products

Xen

References · 15

• https://osv.dev/vulnerability/CVE-2012-6031 · Vendor Advisory
• http://security.gentoo.org/glsa/glsa-201309-24.xml · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2012-6031 · Vendor Advisory
• http://secunia.com/advisories/50472 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2012-6031 · Security Note
• https://security.gentoo.org/glsa/201604-03 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2012-6031 · Vendor Advisory
• https://exchange.xforce.ibmcloud.com/vulnerabilities/78268 · Note
• http://openwall.com/lists/oss-security/2012/09/05/8 · Note
• http://osvdb.org/85199 · Note
• http://securityfocus.com/bid/55410 · Note
• http://secunia.com/advisories/55082 · Note
• http://securitytracker.com/id?1027482 · Note
• http://lists.xen.org/archives/html/xen-announce/2012-09/msg00006.html · Note
• http://wiki.xen.org/wiki/Security_Announcements#XSA-15_multiple_TMEM_hypercall_vulnerabilities · Note