Buffer overflow in the clusterip_proc_write function in…
Priority LOW 34CWE-120Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-120 and the CVSS impact.
Summary
Buffer overflow in the clusterip_proc_write function in net/ipv4/netfilter/ipt_CLUSTERIP.c in the Linux kernel before 2.6.39 might allow local users to cause a denial of service or have unspecified other impact via a crafted write operation, related to string data that lacks a terminating '\0' character.
Why it matters now
EPSS 0.00462 40th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
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
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 5 | Affected | No fix yet |
| Red Hat Enterprise Linux 6 | Affected | No fix yet |
| Red Hat Enterprise MRG 1 | Affected | No fix yet |
Timeline
- 2026-10-02 Threatist record created from CVE-2011-2534
- 2026-10-03 Alias added: GHSA-5j7x-rxfv-p87h
References
Patch 6
- [oss-security] 20110318 CVE request: kernel: netfilter & econet infoleaks
- https://bugzilla.redhat.com/show_bug.cgi?id=689337
- [netfilter-devel] 20110317 [PATCH v2] ipv4: netfilter: ipt_CLUSTERIP: fix buffer overflow
- [netfilter] 20110310 [PATCH] ipv4: netfilter: ipt_CLUSTERIP: fix buffer overflow
- [oss-security] 20110321 Re: CVE request: kernel: netfilter & econet infoleaks
- [oss-security] 20110321 Re: CVE request: kernel: netfilter & econet infoleaks
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-2011-2534 · CVE Program
- CVE-2011-2534 · NVD
- FIRST EPSS
- GHSA-5j7x-rxfv-p87h · GitHub Advisory Database · CC BY 4.0
- CVE-2011-2534 · 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