The clip_mkip function in net/atm/clip.c of the ATM subsystem in Linux kernel allows…
Priority MEDIUM 41CWE-416Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- 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-416 and the CVSS impact.
Summary
The clip_mkip function in net/atm/clip.c of the ATM subsystem in Linux kernel allows remote attackers to cause a denial of service (panic) via unknown vectors that cause the ATM subsystem to access the memory of socket buffers after they are freed (freed pointer dereference).
Why it matters now
EPSS 0.04962 92nd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
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 · 7
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | before 2.6.18 | Vulnerable | Linux |
| cpe:2.3:o:canonical:ubuntu_linux:5.10:*:*:*:*:*:*:* | 5.10 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:6.06:*:*:*:*:*:*:* | 6.06 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:6.10:*:*:*:*:*:*:* | 6.10 | Vulnerable | Canonical |
| cpe:2.3:o:redhat:enterprise_linux:2.1:*:*:*:*:*:*:* | 2.1 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux:3:*:*:*:*:*:*:* | 3 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux:4:*:*:*:*:*:*:* | 4 | Vulnerable | Red Hat |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions before 2.6.18 Vulnerable ·Linux
- cpe:2.3:o:canonical:ubuntu_linux:5.10:*:*:*:*:*:*:* Versions 5.10 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:6.06:*:*:*:*:*:*:* Versions 6.06 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:6.10:*:*:*:*:*:*:* Versions 6.10 Vulnerable ·Canonical
- cpe:2.3:o:redhat:enterprise_linux:2.1:*:*:*:*:*:*:* Versions 2.1 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux:3:*:*:*:*:*:*:* Versions 3 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux:4:*:*:*:*:*:*:* Versions 4 Vulnerable ·Red Hat
Remediation
Red Hat 4 advisories
- RHSA-2007:0012 Released 2007-01-17 · Red Hat rating Moderatekernel security update
- Red Hat Enterprise Linux AS (Advanced Server) version 2.1 kernel-2.4.18-e.64, kernel-2.4.18-e.64.ia64, kernel-doc-2.4.18-e.64.ia64 +2
- Red Hat Linux Advanced Workstation 2.1 kernel-2.4.18-e.64, kernel-2.4.18-e.64.ia64, kernel-doc-2.4.18-e.64.ia64 +2
- RHSA-2007:0013 Released 2007-01-17 · Red Hat rating Moderatekernel security update
- Red Hat Enterprise Linux AS (Advanced Server) version 2.1 kernel-2.4.9-e.71, kernel-2.4.9-e.71.athlon, kernel-BOOT-2.4.9-e.71.i386 +8
- Red Hat Enterprise Linux ES version 2.1 kernel-2.4.9-e.71, kernel-2.4.9-e.71.athlon, kernel-BOOT-2.4.9-e.71.i386 +6
- Red Hat Enterprise Linux WS version 2.1 kernel-2.4.9-e.71, kernel-2.4.9-e.71.athlon, kernel-BOOT-2.4.9-e.71.i386 +7
- RHSA-2006:0710 Released 2006-10-20 · Red Hat rating Importantkernel security update
- Red Hat Desktop version 3 kernel-2.4.21-47.0.1.EL, kernel-2.4.21-47.0.1.EL.athlon, kernel-2.4.21-47.0.1.EL.ia32e +14
- Red Hat Enterprise Linux AS version 3 kernel-2.4.21-47.0.1.EL, kernel-2.4.21-47.0.1.EL.athlon, kernel-2.4.21-47.0.1.EL.ia32e +22
- Red Hat Enterprise Linux ES version 3 kernel-2.4.21-47.0.1.EL, kernel-2.4.21-47.0.1.EL.athlon, kernel-2.4.21-47.0.1.EL.ia32e +18
- Red Hat Enterprise Linux WS version 3 kernel-2.4.21-47.0.1.EL, kernel-2.4.21-47.0.1.EL.athlon, kernel-2.4.21-47.0.1.EL.ia32e +18
Show 1 more Red Hat advisories
- RHSA-2006:0689 Released 2006-10-05 · Red Hat rating Importantkernel security update
- Red Hat Enterprise Linux AS version 4 kernel-2.6.9-42.0.3.EL, kernel-2.6.9-42.0.3.EL.ia64, kernel-2.6.9-42.0.3.EL.ppc64iseries +12
- Red Hat Enterprise Linux Desktop version 4 kernel-2.6.9-42.0.3.EL, kernel-devel-2.6.9-42.0.3.EL, kernel-doc-2.6.9-42.0.3.EL +6
- Red Hat Enterprise Linux ES version 4 kernel-2.6.9-42.0.3.EL, kernel-2.6.9-42.0.3.EL.ia64, kernel-devel-2.6.9-42.0.3.EL +10
- Red Hat Enterprise Linux WS version 4 kernel-2.6.9-42.0.3.EL, kernel-2.6.9-42.0.3.EL.ia64, kernel-devel-2.6.9-42.0.3.EL +10
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Desktop version 3 | Fixed | RHSA-2006:0710 |
| Red Hat Enterprise Linux AS (Advanced Server) version 2.1 | Fixed | RHSA-2007:0012, RHSA-2007:0013 |
| Red Hat Enterprise Linux AS version 3 | Fixed | RHSA-2006:0710 |
| Red Hat Enterprise Linux AS version 4 | Fixed | RHSA-2006:0689 |
| Red Hat Enterprise Linux Desktop version 4 | Fixed | RHSA-2006:0689 |
| Red Hat Enterprise Linux ES version 2.1 | Fixed | RHSA-2007:0013 |
| Red Hat Enterprise Linux ES version 3 | Fixed | RHSA-2006:0710 |
| Red Hat Enterprise Linux ES version 4 | Fixed | RHSA-2006:0689 |
| Red Hat Enterprise Linux WS version 2.1 | Fixed | RHSA-2007:0013 |
| Red Hat Enterprise Linux WS version 3 | Fixed | RHSA-2006:0710 |
| Red Hat Enterprise Linux WS version 4 | Fixed | RHSA-2006:0689 |
| Red Hat Linux Advanced Workstation 2.1 | Fixed | RHSA-2007:0012 |
Timeline
- 2026-10-02 Threatist record created from CVE-2006-4997
- 2026-10-03 Alias added: GHSA-684x-5684-48r7
References
Patch 1
Advisory 13
- MDKSA-2007:025
- SUSE-SA:2006:079
- RHSA-2007:0012
- RHSA-2007:0013
- MDKSA-2007:012
- DSA-1237
- DSA-1233
- http://support.avaya.com/elmodocs2/security/ASA-2006-249.htm
- http://support.avaya.com/elmodocs2/security/ASA-2007-078.htm
- http://support.avaya.com/elmodocs2/security/ASA-2006-254.htm
- RHSA-2006:0710
- USN-395-1
- MDKSA-2006:197
Sources
- CVE-2006-4997 · CVE Program
- CVE-2006-4997 · NVD
- FIRST EPSS
- GHSA-684x-5684-48r7 · GitHub Advisory Database · CC BY 4.0
- CVE-2006-4997 · Red Hat security data · CC BY 4.0
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