Unknown vulnerability in ip_nat_sack_adjust of Netfilter in Linux kernels 2.4.20, and…
Priority LOW 27Published · 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 · Partial
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
Unknown vulnerability in ip_nat_sack_adjust of Netfilter in Linux kernels 2.4.20, and some 2.5.x, when CONFIG_IP_NF_NAT_FTP or CONFIG_IP_NF_NAT_IRC is enabled, or the ip_nat_ftp or ip_nat_irc modules are loaded, allows remote attackers to cause a denial of service (crash) in systems using NAT, possibly due to an integer signedness error.
Why it matters now
EPSS 0.01855 79th 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
CPE configurations NVD · 5
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:2.4.20:*:*:*:*:*:*:* | 2.4.20 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:2.4.21:*:*:*:*:*:*:* | 2.4.21 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:2.4.21:pre1:*:*:*:*:*:* | 2.4.21 pre1 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:2.4.21:pre4:*:*:*:*:*:* | 2.4.21 pre4 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:2.4.21:pre7:*:*:*:*:*:* | 2.4.21 pre7 | Vulnerable | Linux |
- cpe:2.3:o:linux:linux_kernel:2.4.20:*:*:*:*:*:*:* Versions 2.4.20 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:2.4.21:*:*:*:*:*:*:* Versions 2.4.21 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:2.4.21:pre1:*:*:*:*:*:* Versions 2.4.21 pre1 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:2.4.21:pre4:*:*:*:*:*:* Versions 2.4.21 pre4 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:2.4.21:pre7:*:*:*:*:*:* Versions 2.4.21 pre7 Vulnerable ·Linux
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2003-0467
- 2026-10-03 Alias added: GHSA-wv87-rv7f-cw5v
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-2003-0467 · CVE Program
- CVE-2003-0467 · NVD
- FIRST EPSS
- GHSA-wv87-rv7f-cw5v · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences