CVE-2012-6036

medium

Description

The (1) memc_save_get_next_page, (2) tmemc_restore_put_page and (3) tmemc_restore_flush_page functions in the Transcendent Memory (TMEM) in Xen 4.0, 4.1, and 4.2 do not check for negative id pools, which allows local guest OS users to cause a denial of service (memory corruption and host crash) or possibly execute arbitrary code via unspecified vectors. NOTE: this issue was originally published as part of CVE-2012-3497, which was too general; CVE-2012-3497 has been SPLIT into this ID and others.

References

http://lists.xen.org/archives/html/xen-announce/2012-09/msg00006.html

http://osvdb.org/85199

http://secunia.com/advisories/50472

http://secunia.com/advisories/55082

http://security.gentoo.org/glsa/glsa-201309-24.xml

http://wiki.xen.org/wiki/Security_Announcements#XSA-15_multiple_TMEM_hypercall_vulnerabilities

http://www.openwall.com/lists/oss-security/2012/09/05/8

http://www.securityfocus.com/bid/55410

http://www.securitytracker.com/id?1027482

https://exchange.xforce.ibmcloud.com/vulnerabilities/78268

https://exchange.xforce.ibmcloud.com/vulnerabilities/80326

https://security.gentoo.org/glsa/201604-03

Details

Source: MITRE

Published: 2012-11-23

Updated: 2017-08-29

Type: CWE-264

Risk Information

CVSS v2

Base Score: 4.4

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

Impact Score: 6.4

Exploitability Score: 3.4

Severity: MEDIUM