Description
xinetd 2.3.4 leaks file descriptors for the signal pipe to services that are launched by xinetd, which could allow those services to cause a denial of service via the pipe.
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 | xinetd | 1:2.3.7-1 | — |
| Debian 13 | xinetd | 1:2.3.7-1 | — |
| Debian 12 | xinetd | 1:2.3.7-1 | — |
| Debian 3.0 | xinetd | 1:2.3.4-1.2 | DSA-151 |
Advisories 1
- DSA-151 xinetd - pipe exposure Debian Security (DSA / DLA) · Mar 9, 2026
References
- DSA-151 vendor-advisory
- 20020814 GLSA: xinetd mailing-list
- RHSA-2002:196 vendor-advisory
- RHSA-2003:228 vendor-advisory
- MDKSA-2002:053 vendor-advisory
- 5458 vdb-entry
- xinetd-signal-leak-dos(9844) vdb-entry