Description
Integer signedness error in the Linux Socket Filter implementation (filter.c) in Linux 2.4.3-pre3 to 2.4.22-pre10 allows attackers to cause a denial of service (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 ↗Advisories 1
- DSA-358-1 linux-kernel-2.4.18 - several vulnerabilities Debian Security (DSA / DLA) · Mar 9, 2026
References
- http://mirror.clarkson.edu/pub/distributions/gentoo-portage/sys-kernel/wolk-sources/ChangeLog
- http://ftp.belnet.be/linux/gentoo-portage/sys-kernel/gentoo-sources/files/gentoo-sources-2.4.CAN-2003-0643.patch
- 23265 third-party-advisory
- http://www.ultramonkey.org/bugs/cve/CAN-2003-0643.shtml
- http://www.xerox.com/downloads/usa/en/c/cert_XRX06_004_v11.pdf
- http://gentoo.kems.net/gentoo-x86-portage/sys-kernel/gentoo-sources/ChangeLog
- http://www.ultramonkey.org/bugs/cve-patch/CAN-2003-0643.patch