CVE-2005-1279

tcpdump < 3.8.3 - Denial of Service via BGP or LDP Packet Handling

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 2 public exploits for CVE-2005-1279. PoCs published by vade79.

AI-analyzed exploit summary This exploit targets a denial-of-service vulnerability in tcpdump versions 3.8.3 and earlier by sending a malformed BGP packet that triggers an infinite loop. The PoC supports both spoofed and non-spoofed TCP packets to exploit the flaw.

Description

tcpdump 3.8.3 and earlier allows remote attackers to cause a denial of service (infinite loop) via a crafted (1) BGP packet, which is not properly handled by RT_ROUTING_INFO, or (2) LDP packet, which is not properly handled by the ldp_print function.

Exploits (2)

exploitdb WORKING POC VERIFIED
by vade79 · cdoslinux
https://www.exploit-db.com/exploits/958

This exploit targets a denial-of-service vulnerability in tcpdump versions 3.8.3 and earlier by sending a malformed BGP packet that triggers an infinite loop. The PoC supports both spoofed and non-spoofed TCP packets to exploit the flaw.

Classification
Working Poc 95%
Attack Type
Dos
Complexity
Moderate
Reliability
Reliable
Target: tcpdump <= 3.8.3
No auth needed
Prerequisites: Network access to target · Ability to send spoofed packets (if using spoofed mode)
devstral-2 · analyzed Feb 16, 2026 Full analysis →
exploitdb WORKING POC VERIFIED
by vade79 · cdoslinux
https://www.exploit-db.com/exploits/957

This exploit triggers a denial-of-service (DoS) condition in tcpdump versions 3.8.3 and earlier by sending a malformed LDP (Label Distribution Protocol) packet, causing an infinite loop in the ldp_print() function. The PoC supports both spoofed and non-spoofed UDP packets.

Classification
Working Poc 95%
Attack Type
Dos
Complexity
Moderate
Reliability
Reliable
Target: tcpdump <= 3.8.3
No auth needed
Prerequisites: Network access to target running vulnerable tcpdump · Ability to send UDP packets to port 646
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (11)

Core 11
Core References
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/15125
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/17101
Vendor Advisory vendor-advisory x_refsource_redhat
http://www.redhat.com/support/errata/RHSA-2005-421.html
Third Party Advisory, VDB Entry vdb-entry signature x_refsource_oval
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9601
Exploit, Vendor Advisory mailing-list x_refsource_bugtraq
http://www.securityfocus.com/archive/1/396932
Third Party Advisory vendor-advisory x_refsource_debian
http://www.debian.org/security/2005/dsa-850
Vendor Advisory vendor-advisory x_refsource_redhat
http://www.redhat.com/support/errata/RHSA-2005-417.html
Third Party Advisory, VDB Entry vendor-advisory x_refsource_fedora
http://www.securityfocus.com/archive/1/430292/100/0/threaded
Various Sources vendor-advisory x_refsource_sco
ftp://ftp.sco.com/pub/updates/UnixWare/SCOSA-2005.60/SCOSA-2005.60.txt
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/18146
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/13389

Scores

EPSS 0.1872
EPSS Percentile 96.9%

Details

Status published
Products (1)
lbl/tcpdump < 3.8.3
Published May 02, 2005
Tracked Since Feb 18, 2026