Description
Stack-based buffer overflow in the sendmsg function call in the Linux kernel 2.6 before 2.6.13.1 allows local users to execute arbitrary code by calling sendmsg and modifying the message contents in another thread.
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-2.6.8 | 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 3
- 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
References
- MDKSA-2005:235 vendor-advisory
- MDKSA-2005:220 vendor-advisory
- 17073 third-party-advisory
- SUSE-SA:2005:068 vendor-advisory
- FLSA:157459-2 vendor-advisory
- USN-178-1 vendor-advisory
- 2005-0049 vendor-advisory
- oval:org.mitre.oval:def:10481 vdb-entry signature
- FLSA:157459-1 vendor-advisory
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.13.1
- RHSA-2005:514 vendor-advisory
- 17002 third-party-advisory
- 17826 third-party-advisory
- 14785 vdb-entry
- 17918 third-party-advisory
- FLSA:157459-3 vendor-advisory
- RHSA-2005:663 vendor-advisory
- 16747 third-party-advisory
- DSA-1017 vendor-advisory
- MDKSA-2005:219 vendor-advisory
- ADV-2005-1878 vdb-entry
- https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=166248
- kernel-sendmsg-bo(22217) vdb-entry
- 19374 third-party-advisory