The x86-64 kernel system-call functionality in Xen 4.1.2 and earlier, as used in Citrix…
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- Complete · Complete · Complete
- Fix status
- Partial Red Hat: 3 fixed, 1 without a fix
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-119 and the CVSS impact.
Summary
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.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 20
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:freebsd:freebsd:*:*:*:*:*:*:*:* | up to 9.0 | Vulnerable | FreeBSD |
| cpe:2.3:o:illumos:illumos:*:*:*:*:*:*:*:* | up to r13723 | Vulnerable | illumos |
| cpe:2.3:o:joyent:smartos:*:*:*:*:*:*:*:* | up to 20120614 | Vulnerable | Joyent |
| cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:* | up to 4.1.2 | Vulnerable | Xen |
| cpe:2.3:o:xen:xen:4.0.0:*:*:*:*:*:*:* | 4.0.0 | Vulnerable | Xen |
| cpe:2.3:o:xen:xen:4.0.1:*:*:*:*:*:*:* | 4.0.1 | Vulnerable | Xen |
| cpe:2.3:o:xen:xen:4.0.2:*:*:*:*:*:*:* | 4.0.2 | Vulnerable | Xen |
| cpe:2.3:o:xen:xen:4.0.3:*:*:*:*:*:*:* | 4.0.3 | Vulnerable | Xen |
| cpe:2.3:o:xen:xen:4.0.4:*:*:*:*:*:*:* | 4.0.4 | Vulnerable | Xen |
| cpe:2.3:o:xen:xen:4.1.0:*:*:*:*:*:*:* | 4.1.0 | Vulnerable | Xen |
- cpe:2.3:o:freebsd:freebsd:*:*:*:*:*:*:*:* Versions up to 9.0 Vulnerable ·FreeBSD
- cpe:2.3:o:illumos:illumos:*:*:*:*:*:*:*:* Versions up to r13723 Vulnerable ·illumos
- cpe:2.3:o:joyent:smartos:*:*:*:*:*:*:*:* Versions up to 20120614 Vulnerable ·Joyent
- cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:* Versions up to 4.1.2 Vulnerable ·Xen
- cpe:2.3:o:xen:xen:4.0.0:*:*:*:*:*:*:* Versions 4.0.0 Vulnerable ·Xen
- cpe:2.3:o:xen:xen:4.0.1:*:*:*:*:*:*:* Versions 4.0.1 Vulnerable ·Xen
- cpe:2.3:o:xen:xen:4.0.2:*:*:*:*:*:*:* Versions 4.0.2 Vulnerable ·Xen
- cpe:2.3:o:xen:xen:4.0.3:*:*:*:*:*:*:* Versions 4.0.3 Vulnerable ·Xen
- cpe:2.3:o:xen:xen:4.0.4:*:*:*:*:*:*:* Versions 4.0.4 Vulnerable ·Xen
- cpe:2.3:o:xen:xen:4.1.0:*:*:*:*:*:*:* Versions 4.1.0 Vulnerable ·Xen
Show 10 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:xen:xen:4.1.1:*:*:*:*:*:*:* | 4.1.1 | Vulnerable | Xen |
| cpe:2.3:o:microsoft:windows_7:*:*:x64:*:*:*:*:* | all versions | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_7:*:sp1:x64:*:*:*:*:* | all versions | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_server_2003:*:sp2:*:*:*:*:*:* | all versions | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_server_2008:r2:*:x64:*:*:*:*:* | r2 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_xp:*:sp3:*:*:*:*:*:* | all versions | Vulnerable | Microsoft |
| cpe:2.3:a:citrix:xenserver:*:*:*:*:*:*:*:* | up to 6.0.2 | Vulnerable | Citrix |
| cpe:2.3:a:citrix:xenserver:6.0:*:*:*:*:*:*:* | 6.0 | Vulnerable | Citrix |
| cpe:2.3:o:netbsd:netbsd:*:beta:*:*:*:*:*:* | up to 6.0 | Vulnerable | NetBSD |
| cpe:2.3:o:sun:sunos:*:*:*:*:*:*:*:* | up to 5.11 | Vulnerable | Sun |
- cpe:2.3:o:xen:xen:4.1.1:*:*:*:*:*:*:* Versions 4.1.1 Vulnerable ·Xen
- cpe:2.3:o:microsoft:windows_7:*:*:x64:*:*:*:*:* Versions all versions Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_7:*:sp1:x64:*:*:*:*:* Versions all versions Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_server_2003:*:sp2:*:*:*:*:*:* Versions all versions Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_server_2008:r2:*:x64:*:*:*:*:* Versions r2 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_xp:*:sp3:*:*:*:*:*:* Versions all versions Vulnerable ·Microsoft
- cpe:2.3:a:citrix:xenserver:*:*:*:*:*:*:*:* Versions up to 6.0.2 Vulnerable ·Citrix
- cpe:2.3:a:citrix:xenserver:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Citrix
- cpe:2.3:o:netbsd:netbsd:*:beta:*:*:*:*:*:* Versions up to 6.0 Vulnerable ·NetBSD
- cpe:2.3:o:sun:sunos:*:*:*:*:*:*:*:* Versions up to 5.11 Vulnerable ·Sun
Remediation
Red Hat 2 advisories
- RHSA-2012:0721 Released 2012-06-12 · Red Hat rating Importantkernel security update
- Red Hat Enterprise Linux (v. 5 server) kernel-2.6.18-308.8.2.el5, kernel-2.6.18-308.8.2.el5.ia64, kernel-PAE-2.6.18-308.8.2.el5 +18
- Red Hat Enterprise Linux Desktop (v. 5 client) kernel-2.6.18-308.8.2.el5, kernel-PAE-2.6.18-308.8.2.el5, kernel-PAE-devel-2.6.18-308.8.2.el5 +8
- RHSA-2012:0720 Released 2012-06-12 · Red Hat rating Importantkernel security and bug fix update
- Red Hat Enterprise Linux EUS (v. 5.6 server) kernel-2.6.18-238.39.1.el5, kernel-2.6.18-238.39.1.el5.ia64, kernel-PAE-2.6.18-238.39.1.el5 +18
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 5 | Affected | No fix yet |
| Red Hat Enterprise Linux (v. 5 server) | Fixed | RHSA-2012:0721 |
| Red Hat Enterprise Linux Desktop (v. 5 client) | Fixed | RHSA-2012:0721 |
| Red Hat Enterprise Linux EUS (v. 5.6 server) | Fixed | RHSA-2012:0720 |
Not affected: 2 products
- Red Hat Enterprise Linux 6
- Red Hat Enterprise MRG 2
Timeline
- 2026-10-02 Threatist record created from CVE-2012-0217
- 2026-10-03 Alias added: GHSA-q644-363q-jfmm
References
Advisory 9
Other 11
- http://blog.xen.org/index.php/2012/06/13/the-intel-sysret-privilege-escalation/
- https://bugzilla.redhat.com/show_bug.cgi?id=813428
- oval:org.mitre.oval:def:15596
- http://blog.illumos.org/2012/06/14/illumos-vulnerability-patched/
- https://www.illumos.org/issues/2873
- [xen-devel] 20120619 Security vulnerability process, and CVE-2012-0217
- [xen-announce] 20120612 Xen Security Advisory 7 (CVE-2012-0217) - PV privilege escalation
- http://www.oracle.com/technetwork/topics/security/cpuoct2012-1515893.html
- http://support.citrix.com/article/CTX133161
- http://smartos.org/2012/06/15/smartos-news-3/
- http://wiki.smartos.org/display/DOC/SmartOS+Change+Log#SmartOSChangeLog-June14%2C2012
Sources
- CVE-2012-0217 · CVE Program
- CVE-2012-0217 · NVD
- FIRST EPSS
- GHSA-q644-363q-jfmm · GitHub Advisory Database · CC BY 4.0
- CVE-2012-0217 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences