Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Xen | Xen | 4.0.0 |
Related Weaknesses (CWE)
References
- http://lists.xen.org/archives/html/xen-announce/2012-09/msg00006.htmlVendor Advisory
- http://osvdb.org/85199
- http://secunia.com/advisories/50472Vendor Advisory
- 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_v
- 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
- http://lists.xen.org/archives/html/xen-announce/2012-09/msg00006.htmlVendor Advisory
- http://osvdb.org/85199
- http://secunia.com/advisories/50472Vendor Advisory
FAQ
What is CVE-2012-6036?
CVE-2012-6036 is a vulnerability with a CVSS score of 4.4 (MEDIUM). 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, wh...
How severe is CVE-2012-6036?
CVE-2012-6036 has been rated MEDIUM with a CVSS base score of 4.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2012-6036?
Check the references section above for vendor advisories and patch information. Affected products include: Xen Xen.