Description
Unknown vulnerability in tcpdump before 3.7.2 related to an inability to "Handle unknown RADIUS attributes properly," allows remote attackers to cause a denial of service (infinite loop), a different vulnerability than CAN-2003-0093.
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 14 | tcpdump | 3.7.2-1 | — |
| Debian 13 | tcpdump | 3.7.2-1 | — |
| Debian 12 | tcpdump | 3.7.2-1 | — |
| Debian 3.0 | tcpdump | 3.6.2-2.4 | DSA-261 |
Advisories 1
- DSA-261 tcpdump - infinite loop Debian Security (DSA / DLA) · Mar 9, 2026
References
- RHSA-2003:151 vendor-advisory
- http://www.tcpdump.org/tcpdump-changes.txt
- DSA-261 vendor-advisory
- MDKSA-2003:027 vendor-advisory
- RHSA-2003:214 vendor-advisory
- tcpdump-radius-attribute-dos(11857) vdb-entry
- RHSA-2003:032 vendor-advisory