LBL tcpdump up to 3.7 L2TP Dissector l2tp_avp_print length memory allocation

CVSS Meta Temp Score
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CTI Interest Score
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5.0$0-$5k0.00

A vulnerability, which was classified as problematic, was found in LBL tcpdump up to 3.7 (Packet Analyzer Software). This affects the function l2tp_avp_print of the component L2TP Dissector. The manipulation of the argument length with an unknown input leads to a memory allocation vulnerability. CWE is classifying the issue as CWE-789. The product allocates memory based on an untrusted, large size value, but it does not ensure that the size is within expected limits, allowing arbitrary amounts of memory to be allocated. This is going to have an impact on availability. The summary by CVE is:

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.

The weakness was disclosed 02/17/2004 (Website). It is possible to read the advisory at debian.org. This vulnerability is uniquely identified as CVE-2003-1029 since 01/14/2004. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details and a public exploit are known.

The exploit is shared for download at exploit-db.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 15262 (Debian DSA-425-1 : tcpdump - multiple vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at X-Force (14046), Exploit-DB (23452), Tenable (15262), SecurityFocus (BID 9263†) and Secunia (SA10636†). The entries VDB-21574 and VDB-21576 are pretty similar.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.0

VulDB Base Score: 5.3
VulDB Temp Score: 5.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Memory allocation
CWE: CWE-789 / CWE-400 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 15262
Nessus Name: Debian DSA-425-1 : tcpdump - multiple vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 53126
OpenVAS Name: Debian Security Advisory DSA 425-1 (tcpdump)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/20/2003 🔍
01/14/2004 +25 days 🔍
01/15/2004 +1 days 🔍
01/17/2004 +2 days 🔍
02/17/2004 +31 days 🔍
02/17/2004 +0 days 🔍
03/13/2007 +1120 days 🔍
10/15/2014 +2773 days 🔍
10/12/2024 +3650 days 🔍

Sourcesinfo

Advisory: debian.org
Status: Confirmed

CVE: CVE-2003-1029 (🔍)
X-Force: 14046
SecurityFocus: 9263
Secunia: 10636 - tcpdump ISAKMP and RADIUS Packet Handling Vulnerabilities, Moderately Critical
SecurityTracker: 1008748 - Tcpdump l2tp_avp_print() Flaw May Let Remote Users Crash the System With Malformed L2TP Packets
Vulnerability Center: 14605 - tcpdump L2TP Protocol Parser Denial of Service via Malicious Packets to UDP Port 1701, Medium

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 10/15/2014 02:00 PM
Updated: 10/12/2024 04:23 AM
Changes: 10/15/2014 02:00 PM (61), 06/08/2017 11:46 PM (14), 06/29/2021 02:32 PM (2), 10/12/2024 04:23 AM (23)
Complete: 🔍
Cache ID: 18:C5A:40

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