Description
The STP protocol, as enabled in Linux 2.4.x, does not provide sufficient security by design, which allows attackers to modify the bridge topology.
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 3.0 | kernel-image-2.4.17-ia64 | kernel-image-2.4.17-ia64 | DSA-423 |
| Debian 3.0 | kernel-image-2.4.18-1-alpha | 2.4.18-8 | DSA-358-1 |
| Debian 3.0 | kernel-image-2.4.18-1-i386 | 2.4.18-9 | DSA-358-1 |
| Debian 3.0 | kernel-image-2.4.18-i386bf | 2.4.18-5woody2 | DSA-358-1 |
| Debian 3.0 | kernel-source-2.4.18 | 2.4.18-11 | DSA-358-1 |
Advisories 2
- DSA-423 linux-kernel-2.4.17-ia64 - several vulnerabilities Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-358-1 linux-kernel-2.4.18 - several vulnerabilities Debian Security (DSA / DLA) · Mar 9, 2026
References
- RHSA-2003:238 vendor-advisory
- DSA-423 vendor-advisory
- RHSA-2003:239 vendor-advisory
- oval:org.mitre.oval:def:380 vdb-entry signature
- DSA-358 vendor-advisory