Race condition in the do_add_counters function in netfilter for Linux kernel 2.6.16 allows local users with CAP_NET_ADMIN capabilities to…

Description

Race condition in the do_add_counters function in netfilter for Linux kernel 2.6.16 allows local users with CAP_NET_ADMIN capabilities to read kernel memory by triggering the race condition in a way that produces a size value that is inconsistent with allocated memory, which leads to a buffer over-read in IPT_ENTRY_ITERATE.

Scores

EPSS (exploitation in 30 days)

0.30% · top 77% of all CVEs (5 Nov 2026)

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.7.

Weakness

• n/a
• CWE-362 (opens in a new tab)All about CWE-362 and its CVEs

Affected products

• n/a

  • affected n/a

References (22)

• ADV-2006-2554 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
• http://www.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=2722971cbe831117686039d5c334f2c0f560be13 (opens in a new tab)x_refsource_MISCx_transferred
• ADV-2006-1893 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
• 21476 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• linux-doaddcounters-race-condition(26583) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
• 22292 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• RHSA-2006:0689 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• oval:org.mitre.oval:def:10309 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
• DSA-1097 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
• 20185 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.16.17 (opens in a new tab)x_refsource_CONFIRMx_transferred
• USN-311-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
• DSA-1103 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
• 25697 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
• http://support.avaya.com/elmodocs2/security/ASA-2006-249.htm (opens in a new tab)x_refsource_CONFIRMx_transferred
• https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=191698 (opens in a new tab)x_refsource_CONFIRMx_transferred
• 22945 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• 20991 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• 20671 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• http://bugs.gentoo.org/show_bug.cgi?id=133465 (opens in a new tab)x_refsource_CONFIRMx_transferred
• 18113 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
• 20914 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2006-0039](https://trackcve.app/badge/CVE-2006-0039.svg)](https://trackcve.app/cve/CVE-2006-0039)

Record last updated 7 Aug 2024, 16:18 UTC.