The __sys_sendmsg function in net/socket.c in the Linux kernel before 3.1 allows local…
Priority LOW 25CWE-476Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-476.
Summary
The __sys_sendmsg function in net/socket.c in the Linux kernel before 3.1 allows local users to cause a denial of service (system crash) via crafted use of the sendmmsg system call, leading to an incorrect pointer dereference.
Why it matters now
EPSS 0.00429 37th percentileScored 2026-11-07
Fix Fixed Red Hat: 1 advisory
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
Remediation
Red Hat 1 advisory
- RHSA-2012:0350 Released 2012-03-06 · Red Hat rating Moderatekernel security and bug fix update
- Red Hat Enterprise Linux Desktop (v. 6) kernel-2.6.32-220.7.1.el6, kernel-debug-2.6.32-220.7.1.el6, kernel-debug-devel-2.6.32-220.7.1.el6 +5
- Red Hat Enterprise Linux Desktop Optional (v. 6) kernel-2.6.32-220.7.1.el6, python-perf-2.6.32-220.7.1.el6
- Red Hat Enterprise Linux HPC Node (v. 6) kernel-2.6.32-220.7.1.el6, kernel-debug-2.6.32-220.7.1.el6, kernel-debug-devel-2.6.32-220.7.1.el6 +5
- Red Hat Enterprise Linux HPC Node Optional (v. 6) kernel-2.6.32-220.7.1.el6, python-perf-2.6.32-220.7.1.el6
- Red Hat Enterprise Linux Server (v. 6) kernel-2.6.32-220.7.1.el6, kernel-bootwrapper-2.6.32-220.7.1.el6, kernel-debug-2.6.32-220.7.1.el6 +8
- Red Hat Enterprise Linux Server Optional (v. 6) kernel-2.6.32-220.7.1.el6, python-perf-2.6.32-220.7.1.el6
- Red Hat Enterprise Linux Workstation (v. 6) kernel-2.6.32-220.7.1.el6, kernel-debug-2.6.32-220.7.1.el6, kernel-debug-devel-2.6.32-220.7.1.el6 +5
- Red Hat Enterprise Linux Workstation Optional (v. 6) kernel-2.6.32-220.7.1.el6, python-perf-2.6.32-220.7.1.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-2012:0350 |
| Red Hat Enterprise Linux Desktop Optional (v. 6) | Fixed | RHSA-2012:0350 |
| Red Hat Enterprise Linux HPC Node (v. 6) | Fixed | RHSA-2012:0350 |
| Red Hat Enterprise Linux HPC Node Optional (v. 6) | Fixed | RHSA-2012:0350 |
| Red Hat Enterprise Linux Server (v. 6) | Fixed | RHSA-2012:0350 |
| Red Hat Enterprise Linux Server Optional (v. 6) | Fixed | RHSA-2012:0350 |
| Red Hat Enterprise Linux Workstation (v. 6) | Fixed | RHSA-2012:0350 |
| Red Hat Enterprise Linux Workstation Optional (v. 6) | Fixed | RHSA-2012:0350 |
Not affected: 2 products
- Red Hat Enterprise Linux 4
- Red Hat Enterprise Linux 5
Timeline
- 2026-10-02 Threatist record created from CVE-2011-4594
- 2026-10-03 Alias added: GHSA-pfqw-h6qm-mp6m
References
Patch 3
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-2011-4594 · CVE Program
- CVE-2011-4594 · NVD
- FIRST EPSS
- GHSA-pfqw-h6qm-mp6m · GitHub Advisory Database · CC BY 4.0
- CVE-2011-4594 · 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