Description
Linux kernel 2.6.x does not properly restrict socket policy access to users with the CAP_NET_ADMIN capability, which could allow local users to conduct unauthorized activities via (1) ipv4/ip_sockglue.c and (2) ipv6/ipv6_sockglue.c.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 3.1 | kernel-source-2.4.27 | 2.4.27-10sarge2 | DSA-1018-1 |
| Debian 3.1 | kernel-source-2.6.8 | 2.6.8-16sarge2 | DSA-1017-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 4 | kernel +6 | 2.6.9-22.EL | RHSA-2005:514 |
| RHEL 3 | kernel +8 | 2.4.21-37.EL | RHSA-2005:663 |
Advisories 4
- RHSA-2005:663 Red Hat Security Advisory: Updated kernel packages available for Red Hat Enterprise Linux 3 Update 6 Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RHSA-2005:514 Red Hat Security Advisory: Updated kernel packages available for Red Hat Enterprise Linux 4 Update 2 Red Hat Security Advisories (RHSA) · Jun 26, 2026
- DSA-1017-1 kernel-source-2.6.8 - several Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-1018-1 kernel-source-2.4.27 - several Debian Security (DSA / DLA) · Mar 9, 2026
References
- SUSE-SA:2005:050 vendor-advisory
- oval:org.mitre.oval:def:10444 vdb-entry signature
- USN-169-1 vendor-advisory
- 17073 third-party-advisory
- 19369 third-party-advisory
- http://www.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=6fc0b4a7a73a81e74d0004732df358f4f9975be2
- DSA-1018 vendor-advisory
- 14609 vdb-entry
- MDKSA-2005:218 vendor-advisory
- RHSA-2005:514 vendor-advisory
- 17002 third-party-advisory
- 17826 third-party-advisory
- http://www.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=6fc0b4a7a73a81e74d0004732df358f4f9975be2
- FLSA:157459-3 vendor-advisory
- RHSA-2005:663 vendor-advisory
- DSA-1017 vendor-advisory
- MDKSA-2005:219 vendor-advisory
- ADV-2005-1878 vdb-entry
- 19374 third-party-advisory