The kvm_set_msr_common function in arch/x86/kvm/x86.c in the Linux kernel through 3.8.4…
Key facts
- Attack vector
- Adjacent network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- High
- Impact type
- Code execution
- Confidentiality · integrity · availability
- Complete · Complete · Complete
- Fix status
- Partial Red Hat: 14 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 kvm_set_msr_common function in arch/x86/kvm/x86.c in the Linux kernel through 3.8.4 does not ensure a required time_page alignment during an MSR_KVM_SYSTEM_TIME operation, which allows guest OS users to cause a denial of service (buffer overflow and host OS memory corruption) or possibly have unspecified other impact via a crafted application.
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 · 5
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | up to 3.8.4 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:3.8.0:*:*:*:*:*:*:* | 3.8.0 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:3.8.1:*:*:*:*:*:*:* | 3.8.1 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:3.8.2:*:*:*:*:*:*:* | 3.8.2 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:3.8.3:*:*:*:*:*:*:* | 3.8.3 | Vulnerable | Linux |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions up to 3.8.4 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:3.8.0:*:*:*:*:*:*:* Versions 3.8.0 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:3.8.1:*:*:*:*:*:*:* Versions 3.8.1 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:3.8.2:*:*:*:*:*:*:* Versions 3.8.2 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:3.8.3:*:*:*:*:*:*:* Versions 3.8.3 Vulnerable ·Linux
Remediation
Red Hat 5 advisories
- RHSA-2013:1026 Released 2013-07-09 · Red Hat rating Importantkernel security and bug fix update
- Red Hat Enterprise Linux Server EUS (v. 6.2) kernel-2.6.32-220.39.1.el6, kernel-bootwrapper-2.6.32-220.39.1.el6, kernel-debug-2.6.32-220.39.1.el6 +8
- Red Hat Enterprise Linux Server Optional EUS (v. 6.2) kernel-2.6.32-220.39.1.el6, python-perf-2.6.32-220.39.1.el6
- RHSA-2013:0928 Released 2013-06-11 · Red Hat rating Importantkernel security and bug fix update
- Red Hat Enterprise Linux Server EUS (v. 6.3) kernel-2.6.32-279.31.1.el6, kernel-bootwrapper-2.6.32-279.31.1.el6, kernel-debug-2.6.32-279.31.1.el6 +8
- Red Hat Enterprise Linux Server Optional EUS (v. 6.3) kernel-2.6.32-279.31.1.el6, python-perf-2.6.32-279.31.1.el6
- RHSA-2013:0746 Released 2013-04-23 · Red Hat rating Importantrhev-hypervisor6 security and bug fix update
- RHEV Hypervisor for RHEL-6 rhev-hypervisor6-6.4-20130415.0.el6_4
Show 2 more Red Hat advisories
- RHSA-2013:0744 Released 2013-04-23 · Red Hat rating Importantkernel security and bug fix update
- Red Hat Enterprise Linux Desktop (v. 6) kernel-2.6.32-358.6.1.el6, kernel-debug-2.6.32-358.6.1.el6, kernel-debug-devel-2.6.32-358.6.1.el6 +5
- Red Hat Enterprise Linux Desktop Optional (v. 6) kernel-2.6.32-358.6.1.el6, python-perf-2.6.32-358.6.1.el6
- Red Hat Enterprise Linux HPC Node (v. 6) kernel-2.6.32-358.6.1.el6, kernel-debug-2.6.32-358.6.1.el6, kernel-debug-devel-2.6.32-358.6.1.el6 +5
- Red Hat Enterprise Linux HPC Node Optional (v. 6) kernel-2.6.32-358.6.1.el6, python-perf-2.6.32-358.6.1.el6
- Red Hat Enterprise Linux Server (v. 6) kernel-2.6.32-358.6.1.el6, kernel-bootwrapper-2.6.32-358.6.1.el6, kernel-debug-2.6.32-358.6.1.el6 +8
- Red Hat Enterprise Linux Server Optional (v. 6) kernel-2.6.32-358.6.1.el6, python-perf-2.6.32-358.6.1.el6
- Red Hat Enterprise Linux Workstation (v. 6) kernel-2.6.32-358.6.1.el6, kernel-debug-2.6.32-358.6.1.el6, kernel-debug-devel-2.6.32-358.6.1.el6 +5
- Red Hat Enterprise Linux Workstation Optional (v. 6) kernel-2.6.32-358.6.1.el6, python-perf-2.6.32-358.6.1.el6
- RHSA-2013:0727 Released 2013-04-09 · Red Hat rating Importantkvm security update
- RHEL Virtualization (v. 5 server) kmod-kvm-83-262.el5_9.3, kmod-kvm-debug-83-262.el5_9.3, kvm-83-262.el5_9.3 +2
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 |
| RHEL Virtualization (v. 5 server) | Fixed | RHSA-2013:0727 |
| RHEV Hypervisor for RHEL-6 | Fixed | RHSA-2013:0746 |
| Red Hat Enterprise Linux Desktop (v. 6) | Fixed | RHSA-2013:0744 |
| Red Hat Enterprise Linux Desktop Optional (v. 6) | Fixed | RHSA-2013:0744 |
| Red Hat Enterprise Linux HPC Node (v. 6) | Fixed | RHSA-2013:0744 |
| Red Hat Enterprise Linux HPC Node Optional (v. 6) | Fixed | RHSA-2013:0744 |
| Red Hat Enterprise Linux Server (v. 6) | Fixed | RHSA-2013:0744 |
| Red Hat Enterprise Linux Server EUS (v. 6.2) | Fixed | RHSA-2013:1026 |
| Red Hat Enterprise Linux Server EUS (v. 6.3) | Fixed | RHSA-2013:0928 |
| Red Hat Enterprise Linux Server Optional (v. 6) | Fixed | RHSA-2013:0744 |
| Red Hat Enterprise Linux Server Optional EUS (v. 6.2) | Fixed | RHSA-2013:1026 |
| Red Hat Enterprise Linux Server Optional EUS (v. 6.3) | Fixed | RHSA-2013:0928 |
| Red Hat Enterprise Linux Workstation (v. 6) | Fixed | RHSA-2013:0744 |
| Red Hat Enterprise Linux Workstation Optional (v. 6) | Fixed | RHSA-2013:0744 |
Not affected: 2 products
- Red Hat Enterprise Linux 5
- Red Hat Enterprise MRG 2
Timeline
- 2026-10-02 Threatist record created from CVE-2013-1796
- 2026-10-03 Alias added: GHSA-xr82-v4c6-wp6r
References
Advisory 14
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-2013-1796 · CVE Program
- CVE-2013-1796 · NVD
- FIRST EPSS
- GHSA-xr82-v4c6-wp6r · GitHub Advisory Database · CC BY 4.0
- CVE-2013-1796 · 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