CVE-1999-1024

tcpdump 3.4a - Denial of Service via Zero-Length Header Packet

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-1999-1024. PoCs published by badi.

AI-analyzed exploit summary This exploit triggers a DoS in tcpdump 3.4a6 by sending a malformed IP packet with protocol number 4 and a zero header length, causing an infinite loop in the ip_print() function. The PoC constructs and sends a raw IP packet with these properties to crash or hang the target system.

Description

ip_print procedure in Tcpdump 3.4a allows remote attackers to cause a denial of service via a packet with a zero length header, which causes an infinite loop and core dump when tcpdump prints the packet.

Exploits (1)

exploitdb WORKING POC VERIFIED
by badi · cremotelinux
https://www.exploit-db.com/exploits/19251

This exploit triggers a DoS in tcpdump 3.4a6 by sending a malformed IP packet with protocol number 4 and a zero header length, causing an infinite loop in the ip_print() function. The PoC constructs and sends a raw IP packet with these properties to crash or hang the target system.

Classification
Working Poc 95%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: tcpdump 3.4a6
No auth needed
Prerequisites: Raw socket permissions · Network access to target
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (4)

Core 4
Core References
Exploit, Patch, Vendor Advisory vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/313
Mailing List mailing-list x_refsource_bugtraq
http://marc.info/?l=bugtraq&m=92955903802773&w=2
Mailing List mailing-list x_refsource_bugtraq
http://marc.info/?l=bugtraq&m=92963447601748&w=2
Mailing List mailing-list x_refsource_bugtraq
http://marc.info/?l=bugtraq&m=92989907627051&w=2

Scores

EPSS 0.0291
EPSS Percentile 85.3%

Details

Status published
Products (1)
lbl/tcpdump 3.4
Published Nov 28, 2001
Tracked Since Feb 18, 2026