The skb_flow_dissect function in net/core/flow_dissector.c in the Linux kernel through…
Priority MEDIUM 43CWE-399Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Medium
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · Complete
- Fix status
- Fixed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-399 and the CVSS impact.
Summary
The skb_flow_dissect function in net/core/flow_dissector.c in the Linux kernel through 3.12 allows remote attackers to cause a denial of service (infinite loop) via a small value in the IHL field of a packet with IPIP encapsulation.
Why it matters now
EPSS 0.09408 95th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
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 · 3
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 3.2 to before 3.2.54; 3.3 to before 3.4.70; 3.5 to before 3.10.20; 3.11 to before 3.11.9; 3.12 to before 3.12.1 | Vulnerable | Linux |
| cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:-:*:*:* | 12.04 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:13.10:*:*:*:*:*:*:* | 13.10 | Vulnerable | Canonical |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 3.2 to before 3.2.54; 3.3 to before 3.4.70; 3.5 to before 3.10.20; 3.11 to before 3.11.9; 3.12 to before 3.12.1 Vulnerable ·Linux
- cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:-:*:*:* Versions 12.04 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:13.10:*:*:*:*:*:*:* Versions 13.10 Vulnerable ·Canonical
Remediation
Red Hat 1 advisory
- RHSA-2013:1490 Released 2013-10-31 · Red Hat rating Importantkernel-rt security and bug fix update
- Red Hat MRG Realtime for RHEL 6 Server v.2 kernel-rt-3.8.13-rt14.25.el6rt, kernel-rt-debug-3.8.13-rt14.25.el6rt, kernel-rt-debug-devel-3.8.13-rt14.25.el6rt +8
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat MRG Realtime for RHEL 6 Server v.2 | Fixed | RHSA-2013:1490 |
Not affected: 3 products
- Red Hat Enterprise Linux 5
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
Timeline
- 2026-10-02 Threatist record created from CVE-2013-4348
- 2026-10-03 Alias added: GHSA-mm7v-94jm-v6mc
References
Sources
- CVE-2013-4348 · CVE Program
- CVE-2013-4348 · NVD
- FIRST EPSS
- GHSA-mm7v-94jm-v6mc · GitHub Advisory Database · CC BY 4.0
- CVE-2013-4348 · 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