The KVM subsystem in the Linux kernel before 3.6.9, when running on hosts that use qemu…
Priority LOW 10Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Medium
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · Partial
- Fix status
- Fixed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat.
Summary
The KVM subsystem in the Linux kernel before 3.6.9, when running on hosts that use qemu userspace without XSAVE, allows local users to cause a denial of service (kernel OOPS) by using the KVM_SET_SREGS ioctl to set the X86_CR4_OSXSAVE bit in the guest cr4 register, then calling the KVM_RUN ioctl.
Why it matters now
EPSS 0.00356 29th percentileScored 2026-11-07
Fix Fixed Red Hat: 2 advisories
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 · 9
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | up to 3.6.8 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:3.6:*:*:*:*:*:*:* | 3.6 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:3.6.1:*:*:*:*:*:*:* | 3.6.1 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:3.6.2:*:*:*:*:*:*:* | 3.6.2 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:3.6.3:*:*:*:*:*:*:* | 3.6.3 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:3.6.4:*:*:*:*:*:*:* | 3.6.4 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:3.6.5:*:*:*:*:*:*:* | 3.6.5 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:3.6.6:*:*:*:*:*:*:* | 3.6.6 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:3.6.7:*:*:*:*:*:*:* | 3.6.7 | Vulnerable | Linux |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions up to 3.6.8 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:3.6:*:*:*:*:*:*:* Versions 3.6 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:3.6.1:*:*:*:*:*:*:* Versions 3.6.1 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:3.6.2:*:*:*:*:*:*:* Versions 3.6.2 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:3.6.3:*:*:*:*:*:*:* Versions 3.6.3 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:3.6.4:*:*:*:*:*:*:* Versions 3.6.4 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:3.6.5:*:*:*:*:*:*:* Versions 3.6.5 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:3.6.6:*:*:*:*:*:*:* Versions 3.6.6 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:3.6.7:*:*:*:*:*:*:* Versions 3.6.7 Vulnerable ·Linux
Remediation
Red Hat 2 advisories
- RHSA-2013:0882 Released 2013-05-30 · Red Hat rating Importantkernel security and bug fix update
- Red Hat Enterprise Linux Server EUS (v. 6.2) kernel-2.6.32-220.38.1.el6, kernel-bootwrapper-2.6.32-220.38.1.el6, kernel-debug-2.6.32-220.38.1.el6 +8
- Red Hat Enterprise Linux Server Optional EUS (v. 6.2) kernel-2.6.32-220.38.1.el6, python-perf-2.6.32-220.38.1.el6
- RHSA-2013:0223 Released 2013-02-05 · Red Hat rating Moderatekernel security and bug fix update
- Red Hat Enterprise Linux Desktop (v. 6) kernel-2.6.32-279.22.1.el6, kernel-debug-2.6.32-279.22.1.el6, kernel-debug-devel-2.6.32-279.22.1.el6 +5
- Red Hat Enterprise Linux Desktop Optional (v. 6) kernel-2.6.32-279.22.1.el6, python-perf-2.6.32-279.22.1.el6
- Red Hat Enterprise Linux HPC Node (v. 6) kernel-2.6.32-279.22.1.el6, kernel-debug-2.6.32-279.22.1.el6, kernel-debug-devel-2.6.32-279.22.1.el6 +5
- Red Hat Enterprise Linux HPC Node Optional (v. 6) kernel-2.6.32-279.22.1.el6, python-perf-2.6.32-279.22.1.el6
- Red Hat Enterprise Linux Server (v. 6) kernel-2.6.32-279.22.1.el6, kernel-bootwrapper-2.6.32-279.22.1.el6, kernel-debug-2.6.32-279.22.1.el6 +8
- Red Hat Enterprise Linux Server Optional (v. 6) kernel-2.6.32-279.22.1.el6, python-perf-2.6.32-279.22.1.el6
- Red Hat Enterprise Linux Workstation (v. 6) kernel-2.6.32-279.22.1.el6, kernel-debug-2.6.32-279.22.1.el6, kernel-debug-devel-2.6.32-279.22.1.el6 +5
- Red Hat Enterprise Linux Workstation Optional (v. 6) kernel-2.6.32-279.22.1.el6, python-perf-2.6.32-279.22.1.el6
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux Desktop (v. 6) | Fixed | RHSA-2013:0223 |
| Red Hat Enterprise Linux Desktop Optional (v. 6) | Fixed | RHSA-2013:0223 |
| Red Hat Enterprise Linux HPC Node (v. 6) | Fixed | RHSA-2013:0223 |
| Red Hat Enterprise Linux HPC Node Optional (v. 6) | Fixed | RHSA-2013:0223 |
| Red Hat Enterprise Linux Server (v. 6) | Fixed | RHSA-2013:0223 |
| Red Hat Enterprise Linux Server EUS (v. 6.2) | Fixed | RHSA-2013:0882 |
| Red Hat Enterprise Linux Server Optional (v. 6) | Fixed | RHSA-2013:0223 |
| Red Hat Enterprise Linux Server Optional EUS (v. 6.2) | Fixed | RHSA-2013:0882 |
| Red Hat Enterprise Linux Workstation (v. 6) | Fixed | RHSA-2013:0223 |
| Red Hat Enterprise Linux Workstation Optional (v. 6) | Fixed | RHSA-2013:0223 |
Not affected: 2 products
- Red Hat Enterprise Linux 5
- Red Hat Enterprise MRG 2
Timeline
- 2026-10-02 Threatist record created from CVE-2012-4461
- 2026-10-03 Alias added: GHSA-vmj3-p7xv-c3c3
References
Other 5
- https://bugzilla.redhat.com/show_bug.cgi?id=862900
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git%3Ba=commit%3Bh=6d1068b3a98519247d8ba4ec85cd40ac136dbdf9
- http://article.gmane.org/gmane.comp.emulators.kvm.devel/100742
- [oss-security] 20121106 CVE-2012-4461 -- kernel: kvm: invalid opcode oops on SET_SREGS with OSXSAVE bit set
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.6.9
More Linux Kernel vulnerabilities
- TI-2025-26358 tls: fix handling of zero-length records on the rx_list KEVCVSS 3.1CRITICAL 9.8
- TI-2026-38352 netfilter: bridge: make ebt_snat ARP rewrite writable KEVCVSS 3.1HIGH 8.8
- TI-2013-05264 The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the… KEVCVSS 3.1HIGH 8.8
- TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
- TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
- TI-2021-05514 Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE KEVCVSS 3.1HIGH 8.3
Sources
- CVE-2012-4461 · CVE Program
- CVE-2012-4461 · NVD
- FIRST EPSS
- GHSA-vmj3-p7xv-c3c3 · GitHub Advisory Database · CC BY 4.0
- CVE-2012-4461 · 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