CVE-2012-0217
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.
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| freebsd freebsd | v ≤ 9.0 | — |
| illumos illumos | v ≤ r13723 | — |
| joyent smartos | v ≤ 20120614 | — |
| xen xen | v ≤ 4.1.2, 4.0.0, 4.0.1, 4.0.2, 4.0.3, 4.0.4, 4.1.0, 4.1.1 | — |
| microsoft windows_7 | No range specified | — |
| microsoft windows_server_2003 | No range specified | — |
| microsoft windows_server_2008 | r2 | — |
| microsoft windows_xp | No range specified | — |
| citrix xenserver | v ≤ 6.0.2, 6.0 | — |
| netbsd netbsd | v ≤ 6.0 | — |
| sun sunos | v ≤ 5.11 | — |
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