Description
The find_target function in ptrace32.c in the Linux kernel 2.4.x before 2.4.29 does not properly handle a NULL return value from another function, which allows local users to cause a denial of service (kernel crash/oops) by running a 32-bit ltrace program with the -i option on a 64-bit executable program.
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-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-source-2.4.27 +4 | 2.4.27-10sarge1 | DSA-921-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 3 | kernel +8 | 2.4.21-37.EL | RHSA-2005:663 |
Advisories 2
- 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
- DSA-921-1 kernel-source-2.4.27 - several Debian Security (DSA / DLA) · Mar 9, 2026
References
- 19038 third-party-advisory
- 18977 third-party-advisory
- 18059 third-party-advisory
- FLSA:157459-2 vendor-advisory
- MDKSA-2006:044 vendor-advisory
- http://lkml.org/lkml/2005/1/5/245
- SUSE-SA:2006:012 vendor-advisory
- DSA-921 vendor-advisory
- 17002 third-party-advisory
- 14965 vdb-entry
- RHSA-2005:663 vendor-advisory
- ADV-2005-1878 vdb-entry
- http://linux.bkbits.net:8080/linux-2.4/cset%4041dd3455GwQPufrGvBJjcUOXQa3WXA
- oval:org.mitre.oval:def:9647 vdb-entry signature