The flush_signal_handlers function in kernel/signal.c in the Linux kernel before 3.8.4…
Priority LOW 18CWE-264Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- Partial · Partial · None
- Fix status
- Fixed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-264.
Summary
The flush_signal_handlers function in kernel/signal.c in the Linux kernel before 3.8.4 preserves the value of the sa_restorer field across an exec operation, which makes it easier for local users to bypass the ASLR protection mechanism via a crafted application containing a sigaction system call.
Why it matters now
EPSS 0.00461 40th percentileScored 2026-11-07
Fix Fixed Red Hat: 4 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 · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | up to 3.8.3 | 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:*:*:*:*:*:*:*:* Versions up to 3.8.3 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
Remediation
Red Hat 4 advisories
- RHSA-2013:1051 Released 2013-07-16 · Red Hat rating Moderatekernel security and bug fix update
- Red Hat Enterprise Linux Desktop (v. 6) kernel-2.6.32-358.14.1.el6, kernel-debug-2.6.32-358.14.1.el6, kernel-debug-devel-2.6.32-358.14.1.el6 +5
- Red Hat Enterprise Linux Desktop Optional (v. 6) kernel-2.6.32-358.14.1.el6, python-perf-2.6.32-358.14.1.el6
- Red Hat Enterprise Linux HPC Node (v. 6) kernel-2.6.32-358.14.1.el6, kernel-debug-2.6.32-358.14.1.el6, kernel-debug-devel-2.6.32-358.14.1.el6 +5
- Red Hat Enterprise Linux HPC Node Optional (v. 6) kernel-2.6.32-358.14.1.el6, python-perf-2.6.32-358.14.1.el6
- Red Hat Enterprise Linux Server (v. 6) kernel-2.6.32-358.14.1.el6, kernel-bootwrapper-2.6.32-358.14.1.el6, kernel-debug-2.6.32-358.14.1.el6 +8
- Red Hat Enterprise Linux Server Optional (v. 6) kernel-2.6.32-358.14.1.el6, python-perf-2.6.32-358.14.1.el6
- Red Hat Enterprise Linux Workstation (v. 6) kernel-2.6.32-358.14.1.el6, kernel-debug-2.6.32-358.14.1.el6, kernel-debug-devel-2.6.32-358.14.1.el6 +5
- Red Hat Enterprise Linux Workstation Optional (v. 6) kernel-2.6.32-358.14.1.el6, python-perf-2.6.32-358.14.1.el6
- RHSA-2013:1080 Released 2013-07-16 · Red Hat rating Moderatekernel security and bug fix update
- Red Hat Enterprise Linux OpenStack Platform 3.0 kernel-2.6.32-358.114.1.openstack.el6, kernel-debug-2.6.32-358.114.1.openstack.el6, kernel-debug-devel-2.6.32-358.114.1.openstack.el6 +6
- RHSA-2013:1034 Released 2013-07-10 · Red Hat rating Lowkernel security and bug fix update
- Red Hat Enterprise Linux (v. 5 server) kernel-2.6.18-348.12.1.el5, kernel-2.6.18-348.12.1.el5.ia64, kernel-PAE-2.6.18-348.12.1.el5 +18
Show 1 more Red Hat advisories
- RHSA-2013:0829 Released 2013-05-20 · Red Hat rating Importantkernel-rt security and bug fix update
- Red Hat MRG Realtime for RHEL 6 Server v.2 kernel-rt-3.6.11.2-rt33.39.el6rt, kernel-rt-debug-3.6.11.2-rt33.39.el6rt, kernel-rt-debug-devel-3.6.11.2-rt33.39.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-2013:1034 |
| Red Hat Enterprise Linux Desktop (v. 6) | Fixed | RHSA-2013:1051 |
| Red Hat Enterprise Linux Desktop Optional (v. 6) | Fixed | RHSA-2013:1051 |
| Red Hat Enterprise Linux HPC Node (v. 6) | Fixed | RHSA-2013:1051 |
| Red Hat Enterprise Linux HPC Node Optional (v. 6) | Fixed | RHSA-2013:1051 |
| Red Hat Enterprise Linux OpenStack Platform 3.0 | Fixed | RHSA-2013:1080 |
| Red Hat Enterprise Linux Server (v. 6) | Fixed | RHSA-2013:1051 |
| Red Hat Enterprise Linux Server Optional (v. 6) | Fixed | RHSA-2013:1051 |
| Red Hat Enterprise Linux Workstation (v. 6) | Fixed | RHSA-2013:1051 |
| Red Hat Enterprise Linux Workstation Optional (v. 6) | Fixed | RHSA-2013:1051 |
| Red Hat MRG Realtime for RHEL 6 Server v.2 | Fixed | RHSA-2013:0829 |
Timeline
- 2026-10-02 Threatist record created from CVE-2013-0914
- 2026-10-03 Alias added: GHSA-chr6-8347-2cjg
References
Advisory 13
Other 5
- https://github.com/torvalds/linux/commit/2ca39528c01a933f6689cd6505ce65bd6d68a530
- https://bugzilla.redhat.com/show_bug.cgi?id=920499
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=2ca39528c01a933f6689cd6505ce65bd6d68a530
- [oss-security] 20130311 CVE-2013-0914 Linux kernel sa_restorer information leak
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.8.4
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-2013-0914 · CVE Program
- CVE-2013-0914 · NVD
- FIRST EPSS
- GHSA-chr6-8347-2cjg · GitHub Advisory Database · CC BY 4.0
- CVE-2013-0914 · Red Hat security data · CC BY 4.0
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