CVE-2003-1029
The L2TP protocol parser in tcpdump 3.8.1 and earlier allows remote attackers to cause a denial...
The L2TP protocol parser in tcpdump 3.8.1 and earlier allows remote attackers to cause a denial of service (infinite loop and memory consumption) via a packet with invalid data to UDP port 1701, which causes l2tp_avp_print to use a bad length value when calling print_octets.
Exploit likelihood
What each source reports
NVD Score used
The L2TP protocol parser in tcpdump 3.8.1 and earlier allows remote attackers to cause a denial of service (infinite loop and memory consumption) via a packet with invalid data to UDP port 1701, which causes l2tp_avp_print to use a bad length value when calling print_octets.
- Record
CVE-2003-1029- CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:N/A:P - Updated
- 2026-11-02
CVE List No score
The L2TP protocol parser in tcpdump 3.8.1 and earlier allows remote attackers to cause a denial of service (infinite loop and memory consumption) via a packet with invalid data to UDP port 1701, which causes l2tp_avp_print to use a bad length value when calling print_octets.
- Record
CVE-2003-1029- Updated
- 2026-11-02
EUVDEUVD-2003-1019 No score
The L2TP protocol parser in tcpdump 3.8.1 and earlier allows remote attackers to cause a denial of service (infinite loop and memory consumption) via a packet with invalid data to UDP port 1701, which causes l2tp_avp_print to use a bad length value when calling print_octets.
- Record
EUVD-2003-1019- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-3h9x-q7vx-j2wh No score
The L2TP protocol parser in tcpdump 3.8.1 and earlier allows remote attackers to cause a denial...
The L2TP protocol parser in tcpdump 3.8.1 and earlier allows remote attackers to cause a denial of service (infinite loop and memory consumption) via a packet with invalid data to UDP port 1701, which causes l2tp_avp_print to use a bad length value when calling print_octets.
- Record
GHSA-3h9x-q7vx-j2wh- Updated
- 2026-11-02
OSV No score
The L2TP protocol parser in tcpdump 3.8.1 and earlier allows remote attackers to cause a denial of service (infinite loop and memory consumption) via a packet with invalid data to UDP port 1701, which causes l2tp_avp_print to use a bad length value when calling print_octets.
- Record
CVE-2003-1029- Updated
- 2026-11-02
OSVDEBIAN-CVE-2003-1029 No score
The L2TP protocol parser in tcpdump 3.8.1 and earlier allows remote attackers to cause a denial of service (infinite loop and memory consumption) via a packet with invalid data to UDP port 1701, which causes l2tp_avp_print to use a bad length value when calling print_octets.
- Record
DEBIAN-CVE-2003-1029- Updated
- 2026-11-02
Affected products
Affected packages
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Exploit-DB | Tcpdump 3.x - L2TP Parser Remote Denial of Service | 2003-12-20 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, Exploit-DB, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2003-1029 is a medium vulnerability (CVSS 5.0) in Lbl Tcpdump, published January 15, 2004. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 9.92%, the 95th percentile. Fixed in tcpdump 3.8.3-1.
References
secunia.com/advisories/10718
marc.info?l=tcpdump-workers&m=107228187124962&w=2
securitytracker.com/id?1008748
lwn.net/Alerts/66805
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mandriva.com/security/advisories?name=MDKSA-2004:008
securityfocus.com/archive/1/350238/30/21640/threaded
debian.org/security/2004/dsa-425
nvd.nist.gov/vuln/detail/CVE-2003-1029
github.com/advisories/GHSA-3h9x-q7vx-j2wh
security-tracker.debian.org/tracker/CVE-2003-1029