The do_tkill function in kernel/signal.c in the Linux kernel before 3.8.9 does not…
Priority LOW 12CWE-399Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Partial · None · None
- Fix status
- Fixed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat.
Summary
The do_tkill function in kernel/signal.c in the Linux kernel before 3.8.9 does not initialize a certain data structure, which allows local users to obtain sensitive information from kernel memory via a crafted application that makes a (1) tkill or (2) tgkill system call.
Why it matters now
EPSS 0.00593 48th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed Red Hat: 3 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 3.8.8 | 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:3.8.4:*:*:*:*:*:*:* | 3.8.4 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:3.8.5:*:*:*:*:*:*:* | 3.8.5 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:3.8.6:*:*:*:*:*:*:* | 3.8.6 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:3.8.7:*:*:*:*:*:*:* | 3.8.7 | Vulnerable | Linux |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions up to 3.8.8 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
- cpe:2.3:o:linux:linux_kernel:3.8.4:*:*:*:*:*:*:* Versions 3.8.4 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:3.8.5:*:*:*:*:*:*:* Versions 3.8.5 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:3.8.6:*:*:*:*:*:*:* Versions 3.8.6 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:3.8.7:*:*:*:*:*:*:* Versions 3.8.7 Vulnerable ·Linux
Remediation
Red Hat 3 advisories
- RHSA-2013:1801 Released 2013-12-12 · Red Hat rating Importantkernel security, bug fix, and enhancement update
- Red Hat Enterprise Linux Desktop (v. 6) kernel-2.6.32-431.1.2.el6, kernel-abi-whitelists-2.6.32-431.1.2.el6, kernel-debug-2.6.32-431.1.2.el6 +5
- Red Hat Enterprise Linux Desktop Optional (v. 6) kernel-2.6.32-431.1.2.el6, python-perf-2.6.32-431.1.2.el6
- Red Hat Enterprise Linux HPC Node (v. 6) kernel-2.6.32-431.1.2.el6, kernel-abi-whitelists-2.6.32-431.1.2.el6, kernel-debug-2.6.32-431.1.2.el6 +5
- Red Hat Enterprise Linux HPC Node Optional (v. 6) kernel-2.6.32-431.1.2.el6, python-perf-2.6.32-431.1.2.el6
- Red Hat Enterprise Linux Server (v. 6) kernel-2.6.32-431.1.2.el6, kernel-abi-whitelists-2.6.32-431.1.2.el6, kernel-bootwrapper-2.6.32-431.1.2.el6 +8
- Red Hat Enterprise Linux Server Optional (v. 6) kernel-2.6.32-431.1.2.el6, python-perf-2.6.32-431.1.2.el6
- Red Hat Enterprise Linux Workstation (v. 6) kernel-2.6.32-431.1.2.el6, kernel-abi-whitelists-2.6.32-431.1.2.el6, kernel-debug-2.6.32-431.1.2.el6 +5
- Red Hat Enterprise Linux Workstation Optional (v. 6) kernel-2.6.32-431.1.2.el6, python-perf-2.6.32-431.1.2.el6
- RHSA-2013:1292 Released 2013-09-26 · Red Hat rating Moderatekernel security and bug fix update
- Red Hat Enterprise Linux (v. 5 server) kernel-2.6.18-348.18.1.el5, kernel-2.6.18-348.18.1.el5.ia64, kernel-PAE-2.6.18-348.18.1.el5 +18
- RHSA-2013:1264 Released 2013-09-16 · Red Hat rating Importantkernel-rt security and bug fix update
- Red Hat MRG Realtime for RHEL 6 Server v.2 kernel-rt-3.6.11.5-rt37.55.el6rt, kernel-rt-debug-3.6.11.5-rt37.55.el6rt, kernel-rt-debug-devel-3.6.11.5-rt37.55.el6rt +8
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux (v. 5 server) | Fixed | RHSA-2013:1292 |
| Red Hat Enterprise Linux Desktop (v. 6) | Fixed | RHSA-2013:1801 |
| Red Hat Enterprise Linux Desktop Optional (v. 6) | Fixed | RHSA-2013:1801 |
| Red Hat Enterprise Linux HPC Node (v. 6) | Fixed | RHSA-2013:1801 |
| Red Hat Enterprise Linux HPC Node Optional (v. 6) | Fixed | RHSA-2013:1801 |
| Red Hat Enterprise Linux Server (v. 6) | Fixed | RHSA-2013:1801 |
| Red Hat Enterprise Linux Server Optional (v. 6) | Fixed | RHSA-2013:1801 |
| Red Hat Enterprise Linux Workstation (v. 6) | Fixed | RHSA-2013:1801 |
| Red Hat Enterprise Linux Workstation Optional (v. 6) | Fixed | RHSA-2013:1801 |
| Red Hat MRG Realtime for RHEL 6 Server v.2 | Fixed | RHSA-2013:1264 |
Timeline
- 2026-10-02 Threatist record created from CVE-2013-2141
- 2026-10-03 Alias added: GHSA-wh5q-74vg-f69v
References
Other 4
- https://bugzilla.redhat.com/show_bug.cgi?id=970873
- [oss-security] 20130604 Re: CVE Request: kernel info leak in tkill/tgkill
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.8.9
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=b9e146d8eb3b9ecae5086d373b50fa0c1f3e7f0f
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-2013-2141 · CVE Program
- CVE-2013-2141 · NVD
- FIRST EPSS
- GHSA-wh5q-74vg-f69v · GitHub Advisory Database · CC BY 4.0
- CVE-2013-2141 · 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