net/ipv4/netfilter/ip_conntrack_core.c in Linux kernel 2.4 and 2.6, and possibly…
Priority LOW 12Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Partial · None · None
- Fix status
- Fixed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat.
Summary
net/ipv4/netfilter/ip_conntrack_core.c in Linux kernel 2.4 and 2.6, and possibly net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c in 2.6, does not clear sockaddr_in.sin_zero before returning IPv4 socket names from the getsockopt function with SO_ORIGINAL_DST, which allows local users to obtain portions of potentially sensitive memory.
Why it matters now
EPSS 0.00431 37th percentileScored 2026-11-07
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
Remediation
Red Hat 4 advisories
- RHSA-2006:0575 Released 2006-08-10 · Red Hat rating ImportantUpdated kernel packages available for Red Hat Enterprise Linux 4 Update 4
- Red Hat Enterprise Linux AS version 4 kernel-2.6.9-42.EL, kernel-2.6.9-42.EL.ia64, kernel-2.6.9-42.EL.ppc64iseries +12
- Red Hat Enterprise Linux Desktop version 4 kernel-2.6.9-42.EL, kernel-devel-2.6.9-42.EL, kernel-doc-2.6.9-42.EL +6
- Red Hat Enterprise Linux ES version 4 kernel-2.6.9-42.EL, kernel-2.6.9-42.EL.ia64, kernel-devel-2.6.9-42.EL +10
- Red Hat Enterprise Linux WS version 4 kernel-2.6.9-42.EL, kernel-2.6.9-42.EL.ia64, kernel-devel-2.6.9-42.EL +10
- RHSA-2006:0437 Released 2006-07-20 · Red Hat rating ImportantUpdated kernel packages for Red Hat Enterprise Linux 3 Update 8
- Red Hat Desktop version 3 kernel-2.4.21-47.EL, kernel-2.4.21-47.EL.athlon, kernel-2.4.21-47.EL.ia32e +14
- Red Hat Enterprise Linux AS version 3 kernel-2.4.21-47.EL, kernel-2.4.21-47.EL.athlon, kernel-2.4.21-47.EL.ia32e +22
- Red Hat Enterprise Linux ES version 3 kernel-2.4.21-47.EL, kernel-2.4.21-47.EL.athlon, kernel-2.4.21-47.EL.ia32e +18
- Red Hat Enterprise Linux WS version 3 kernel-2.4.21-47.EL, kernel-2.4.21-47.EL.athlon, kernel-2.4.21-47.EL.ia32e +18
- RHSA-2006:0580 Released 2006-07-13 · Red Hat rating Moderatekernel security update
- Red Hat Enterprise Linux AS (Advanced Server) version 2.1
- Red Hat Linux Advanced Workstation 2.1
Show 1 more Red Hat advisories
- RHSA-2006:0579 Released 2006-07-13 · Red Hat rating Importantkernel security update
- Red Hat Enterprise Linux AS (Advanced Server) version 2.1
- Red Hat Enterprise Linux ES version 2.1
- Red Hat Enterprise Linux WS version 2.1
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Desktop version 3 | Fixed | RHSA-2006:0437 |
| Red Hat Enterprise Linux AS (Advanced Server) version 2.1 | Fixed | RHSA-2006:0579 |
| Red Hat Enterprise Linux AS version 3 | Fixed | RHSA-2006:0437 |
| Red Hat Enterprise Linux AS version 4 | Fixed | RHSA-2006:0575 |
| Red Hat Enterprise Linux Desktop version 4 | Fixed | RHSA-2006:0575 |
| Red Hat Enterprise Linux ES version 2.1 | Fixed | RHSA-2006:0579 |
| Red Hat Enterprise Linux ES version 3 | Fixed | RHSA-2006:0437 |
| Red Hat Enterprise Linux ES version 4 | Fixed | RHSA-2006:0575 |
| Red Hat Enterprise Linux WS version 2.1 | Fixed | RHSA-2006:0579 |
| Red Hat Enterprise Linux WS version 3 | Fixed | RHSA-2006:0437 |
| Red Hat Enterprise Linux WS version 4 | Fixed | RHSA-2006:0575 |
| Red Hat Linux Advanced Workstation 2.1 | Fixed | RHSA-2006:0580 |
Timeline
- 2026-10-02 Threatist record created from CVE-2006-1343
- 2026-10-03 Alias added: GHSA-27x9-7v8h-q32h
References
Advisory 10
Other 10
- ADV-2006-4502
- 29841
- http://www.vmware.com/download/esx/esx-202-200610-patch.html
- http://www.vmware.com/download/esx/esx-213-200610-patch.html
- oval:org.mitre.oval:def:10875
- http://support.avaya.com/elmodocs2/security/ASA-2006-180.htm
- http://www.vmware.com/download/esx/esx-254-200610-patch.html
- http://support.avaya.com/elmodocs2/security/ASA-2006-200.htm
- ADV-2006-2071
- [linux-netdev] 20060304 BUG: Small information leak in SO_ORIGINAL_DST (2.4 and 2.6) and
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-2006-1343 · CVE Program
- CVE-2006-1343 · NVD
- FIRST EPSS
- GHSA-27x9-7v8h-q32h · GitHub Advisory Database · CC BY 4.0
- CVE-2006-1343 · 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