Description
ptrace in Linux kernel 2.6.8.1 does not properly verify addresses on the amd64 platform, which allows local users to cause a denial of service (kernel crash).
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-image-2.4.27-arm +1 | 2.4.27-2sarge1 | DSA-921-1 |
| Debian 3.1 | kernel-image-2.4.27-m68k | 2.4.27-3sarge1 | DSA-921-1 |
| Debian 3.1 | kernel-image-2.4.27-sparc | 2.4.27-9sarge1 | DSA-921-1 |
| Debian 3.1 | kernel-image-2.6.8-hppa | 2.6.8-6sarge1 | DSA-922-1 |
| Debian 3.1 | kernel-image-2.6.8-ia64 | 2.6.8-14sarge1 | DSA-922-1 |
| Debian 3.1 | kernel-image-2.6.8-m68k | 2.6.8-4sarge1 | DSA-922-1 |
| Debian 3.1 | kernel-image-2.6.8-s390 | 2.6.8-5sarge1 | DSA-922-1 |
| Debian 3.1 | kernel-image-2.6.8-sparc | 2.6.8-15sarge1 | DSA-922-1 |
| Debian 3.1 | kernel-patch-2.4.27-arm | 2.4.27-1sarge1 | DSA-921-1 |
| Debian 3.1 | kernel-patch-2.4.27-mips | 2.4.27-10.sarge1.040815-1 | DSA-921-1 |
| Debian 3.1 | kernel-patch-powerpc-2.6.8 | 2.6.8-12sarge1 | DSA-922-1 |
| Debian 3.1 | kernel-source-2.4.27 +4 | 2.4.27-10sarge1 | DSA-921-1 |
| Debian 3.1 | kernel-source-2.6.8 +3 | 2.6.8-16sarge1 | DSA-922-1 |
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-921-1 kernel-source-2.4.27 - several Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-922-1 kernel-source-2.6.8 - several Debian Security (DSA / DLA) · Mar 9, 2026
References
- 18056 third-party-advisory
- 17073 third-party-advisory
- USN-137-1 vendor-advisory
- 13891 vdb-entry
- 18059 third-party-advisory
- FLSA:157459-2 vendor-advisory
- DSA-922 vendor-advisory
- oval:org.mitre.oval:def:11119 vdb-entry signature
- DSA-921 vendor-advisory
- RHSA-2005:514 vendor-advisory
- 17002 third-party-advisory
- FLSA:157459-3 vendor-advisory
- RHSA-2005:663 vendor-advisory
- ADV-2005-1878 vdb-entry