Vulnerability Description
The x86-64 kernel system-call functionality in Xen 4.1.2 and earlier, as used in Citrix XenServer 6.0.2 and earlier and other products; Oracle Solaris 11 and earlier; illumos before r13724; Joyent SmartOS before 20120614T184600Z; FreeBSD before 9.0-RELEASE-p3; NetBSD 6.0 Beta and earlier; Microsoft Windows Server 2008 R2 and R2 SP1 and Windows 7 Gold and SP1; and possibly other operating systems, when running on an Intel processor, incorrectly uses the sysret path in cases where a certain address is not a canonical address, which allows local users to gain privileges via a crafted application. NOTE: because this issue is due to incorrect use of the Intel specification, it should have been split into separate identifiers; however, there was some value in preserving the original mapping of the multi-codebase coordinated-disclosure effort to a single identifier.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Freebsd | Freebsd | <= 9.0 |
| Illumos | Illumos | <= r13723 |
| Joyent | Smartos | <= 20120614 |
| Xen | Xen | <= 4.1.2 |
| Microsoft | Windows 7 | All versions |
| Microsoft | Windows Server 2003 | All versions |
| Microsoft | Windows Server 2008 | r2 |
| Microsoft | Windows Xp | All versions |
| Citrix | Xenserver | <= 6.0.2 |
| Netbsd | Netbsd | <= 6.0 |
| Sun | Sunos | <= 5.11 |
Related Weaknesses (CWE)
References
- http://blog.illumos.org/2012/06/14/illumos-vulnerability-patched/
- http://blog.xen.org/index.php/2012/06/13/the-intel-sysret-privilege-escalation/
- http://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2012-003.txt.asc
- http://lists.xen.org/archives/html/xen-announce/2012-06/msg00001.html
- http://lists.xen.org/archives/html/xen-devel/2012-06/msg01072.html
- http://secunia.com/advisories/55082
- http://security.freebsd.org/advisories/FreeBSD-SA-12:04.sysret.asc
- http://security.gentoo.org/glsa/glsa-201309-24.xml
- http://smartos.org/2012/06/15/smartos-news-3/
- http://support.citrix.com/article/CTX133161
- http://wiki.smartos.org/display/DOC/SmartOS+Change+Log#SmartOSChangeLog-June14%2
- http://www.debian.org/security/2012/dsa-2501
- http://www.debian.org/security/2012/dsa-2508
- http://www.kb.cert.org/vuls/id/649219US Government Resource
- http://www.mandriva.com/security/advisories?name=MDVSA-2013:150
FAQ
What is CVE-2012-0217?
CVE-2012-0217 is a vulnerability with a CVSS score of 7.2 (HIGH). The x86-64 kernel system-call functionality in Xen 4.1.2 and earlier, as used in Citrix XenServer 6.0.2 and earlier and other products; Oracle Solaris 11 and earlier; illumos before r13724; Joyent Sma...
How severe is CVE-2012-0217?
CVE-2012-0217 has been rated HIGH with a CVSS base score of 7.2/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2012-0217?
Check the references section above for vendor advisories and patch information. Affected products include: Freebsd Freebsd, Illumos Illumos, Joyent Smartos, Xen Xen, Microsoft Windows 7.