CVE-2003-0211

unknown
Published — · Modified —
CVSS v3
CVSS v4 NEW
not yet in upstream
VIR risk
1.0

Description

Memory leak in xinetd 2.3.10 allows remote attackers to cause a denial of service (memory consumption) via a large number of rejected connections.

Predictions

Exploit likelihood
20%
Patch ETA

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

Exploits

Public proof-of-concept code below. AS-IS, for defenders and authorised testing only.

Exploit-DB

EDB-22508 dos linux verified text · 1 KB
Steve Grubb · 2003-04-18

Xinetd 2.1.x/2.3.x - Rejected Connection Memory Leakage Denial of Service

text exploit Source: Exploit-DB
source: https://www.securityfocus.com/bid/7382/info

A denial of service vulnerability has been reported for Xinetd. The vulnerability exists due to memory leaks occuring when connections are rejected.

Numerous, repeated connections to a vulnerable Xinetd server will result in the consumption of all available memory resources thereby causing a denial of service condition. 

while true; do telnet localhost chargen < /dev/null; done; 

OS impact

debian Debian Fixed 5 releases
VersionStatusFixed in
trixie Fixed 1:2.3.11
sid Fixed 1:2.3.11
forky Fixed 1:2.3.11
bullseye Fixed 1:2.3.11
bookworm Fixed 1:2.3.11

References

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.