The ECNE chunk handling in Linux SCTP (lksctp) before 2.6.17 allows remote attackers to…
Priority MEDIUM 41Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · Complete
- Fix status
- Fixed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat.
Summary
The ECNE chunk handling in Linux SCTP (lksctp) before 2.6.17 allows remote attackers to cause a denial of service (kernel panic) via an unexpected chunk when the session is in CLOSED state.
Why it matters now
EPSS 0.04444 91st 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
CPE configurations NVD · 10
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:lksctp:lksctp:2.6.0_test1_0.7.2:*:*:*:*:*:*:* | 2.6.0_test1_0.7.2 | Vulnerable | Lksctp |
| cpe:2.3:a:lksctp:lksctp:2.6.0_test4_0.7.3:*:*:*:*:*:*:* | 2.6.0_test4_0.7.3 | Vulnerable | Lksctp |
| cpe:2.3:a:lksctp:lksctp:2.6.2_0.9.0:*:*:*:*:*:*:* | 2.6.2_0.9.0 | Vulnerable | Lksctp |
| cpe:2.3:a:lksctp:lksctp:2.6.3_1.0.0:*:*:*:*:*:*:* | 2.6.3_1.0.0 | Vulnerable | Lksctp |
| cpe:2.3:a:lksctp:lksctp:2.6.6_1.0.1:*:*:*:*:*:*:* | 2.6.6_1.0.1 | Vulnerable | Lksctp |
| cpe:2.3:a:lksctp:lksctp:2.6.10_1.0.2:*:*:*:*:*:*:* | 2.6.10_1.0.2 | Vulnerable | Lksctp |
| cpe:2.3:a:lksctp:lksctp:2.6.13_1.0.3:*:*:*:*:*:*:* | 2.6.13_1.0.3 | Vulnerable | Lksctp |
| cpe:2.3:a:lksctp:lksctp:2.6.14_1.0.4:*:*:*:*:*:*:* | 2.6.14_1.0.4 | Vulnerable | Lksctp |
| cpe:2.3:a:lksctp:lksctp:2.6.15_1.0.5:*:*:*:*:*:*:* | 2.6.15_1.0.5 | Vulnerable | Lksctp |
| cpe:2.3:a:lksctp:lksctp:2.6.16_1.0.6:*:*:*:*:*:*:* | 2.6.16_1.0.6 | Vulnerable | Lksctp |
- cpe:2.3:a:lksctp:lksctp:2.6.0_test1_0.7.2:*:*:*:*:*:*:* Versions 2.6.0_test1_0.7.2 Vulnerable ·Lksctp
- cpe:2.3:a:lksctp:lksctp:2.6.0_test4_0.7.3:*:*:*:*:*:*:* Versions 2.6.0_test4_0.7.3 Vulnerable ·Lksctp
- cpe:2.3:a:lksctp:lksctp:2.6.2_0.9.0:*:*:*:*:*:*:* Versions 2.6.2_0.9.0 Vulnerable ·Lksctp
- cpe:2.3:a:lksctp:lksctp:2.6.3_1.0.0:*:*:*:*:*:*:* Versions 2.6.3_1.0.0 Vulnerable ·Lksctp
- cpe:2.3:a:lksctp:lksctp:2.6.6_1.0.1:*:*:*:*:*:*:* Versions 2.6.6_1.0.1 Vulnerable ·Lksctp
- cpe:2.3:a:lksctp:lksctp:2.6.10_1.0.2:*:*:*:*:*:*:* Versions 2.6.10_1.0.2 Vulnerable ·Lksctp
- cpe:2.3:a:lksctp:lksctp:2.6.13_1.0.3:*:*:*:*:*:*:* Versions 2.6.13_1.0.3 Vulnerable ·Lksctp
- cpe:2.3:a:lksctp:lksctp:2.6.14_1.0.4:*:*:*:*:*:*:* Versions 2.6.14_1.0.4 Vulnerable ·Lksctp
- cpe:2.3:a:lksctp:lksctp:2.6.15_1.0.5:*:*:*:*:*:*:* Versions 2.6.15_1.0.5 Vulnerable ·Lksctp
- cpe:2.3:a:lksctp:lksctp:2.6.16_1.0.6:*:*:*:*:*:*:* Versions 2.6.16_1.0.6 Vulnerable ·Lksctp
Remediation
Red Hat 1 advisory
- RHSA-2006:0493 Released 2006-05-24 · Red Hat rating Importantkernel security update
- Red Hat Enterprise Linux AS version 4 kernel-2.6.9-34.0.1.EL, kernel-2.6.9-34.0.1.EL.ia64, kernel-2.6.9-34.0.1.EL.ppc64iseries +12
- Red Hat Enterprise Linux Desktop version 4 kernel-2.6.9-34.0.1.EL, kernel-devel-2.6.9-34.0.1.EL, kernel-doc-2.6.9-34.0.1.EL +6
- Red Hat Enterprise Linux ES version 4 kernel-2.6.9-34.0.1.EL, kernel-2.6.9-34.0.1.EL.ia64, kernel-devel-2.6.9-34.0.1.EL +10
- Red Hat Enterprise Linux WS version 4 kernel-2.6.9-34.0.1.EL, kernel-2.6.9-34.0.1.EL.ia64, kernel-devel-2.6.9-34.0.1.EL +10
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux AS version 4 | Fixed | RHSA-2006:0493 |
| Red Hat Enterprise Linux Desktop version 4 | Fixed | RHSA-2006:0493 |
| Red Hat Enterprise Linux ES version 4 | Fixed | RHSA-2006:0493 |
| Red Hat Enterprise Linux WS version 4 | Fixed | RHSA-2006:0493 |
Timeline
- 2026-10-02 Threatist record created from CVE-2006-2271
- 2026-10-03 Alias added: GHSA-v556-chqj-grw5
References
Patch 2
Sources
- CVE-2006-2271 · CVE Program
- CVE-2006-2271 · NVD
- FIRST EPSS
- GHSA-v556-chqj-grw5 · GitHub Advisory Database · CC BY 4.0
- CVE-2006-2271 · 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