Apache Tomcat up to 4.1.12 mod_jk Transfer-Encoding memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.7$0-$5k0.00

Summaryinfo

A vulnerability was found in Apache Tomcat up to 4.1.12. It has been declared as problematic. This issue affects some unknown processing of the component mod_jk. The manipulation of the argument Transfer-Encoding results in memory corruption. This vulnerability is cataloged as CVE-2002-2272. Furthermore, there is an exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Apache Tomcat up to 4.1.12 (Application Server Software). It has been classified as critical. Affected is some unknown processing of the component mod_jk. The manipulation of the argument Transfer-Encoding with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on availability. CVE summarizes:

Tomcat 4.0 through 4.1.12, using mod_jk 1.2.1 module on Apache 1.3 through 1.3.27, allows remote attackers to cause a denial of service (desynchronized communications) via an HTTP GET request with a Transfer-Encoding chunked field with invalid values.

The weakness was shared 12/31/2002 with Qualys (Website). The advisory is available at securityfocus.com. This vulnerability is traded as CVE-2002-2272 since 10/17/2007. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details and a public exploit are known.

A public exploit has been developed in Perl. The exploit is shared for download at securityfocus.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 11519 (Apache Tomcat mod_jk Invalid Transfer-Encoding Chunked Field DoS), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Web Servers and running in the context r. The commercial vulnerability scanner Qualys is able to test this issue with plugin 86740 (Apache/Tomcat Mod_JK Chunked Encoding Denial of Service Vulnerability).

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (10771), Exploit-DB (22068), Tenable (11519), SecurityFocus (BID 6320†) and Vulnerability Center (SBV-1719†). If you want to get best quality of vulnerability data, you may have to visit VulDB.

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CVSSv4info

VulDB Vector: 🔍
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CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 6.7

VulDB Base Score: 7.5
VulDB Temp Score: 6.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

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

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Nessus ID: 11519
Nessus Name: Apache Tomcat mod_jk Invalid Transfer-Encoding Chunked Field DoS
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
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Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/04/2002 🔍
12/04/2002 +0 days 🔍
12/31/2002 +27 days 🔍
12/31/2002 +0 days 🔍
04/04/2003 +94 days 🔍
08/19/2003 +137 days 🔍
10/17/2007 +1520 days 🔍
08/06/2014 +2485 days 🔍
08/29/2025 +4041 days 🔍

Sourcesinfo

Vendor: apache.org

Advisory: securityfocus.com⛔
Organization: Qualys
Status: Confirmed

CVE: CVE-2002-2272 (🔍)
GCVE (CVE): GCVE-0-2002-2272
GCVE (VulDB): GCVE-100-19914
X-Force: 10771
SecurityFocus: 6320 - Apache/Tomcat Mod_JK Chunked Encoding Denial Of Service Vulnerability
Vulnerability Center: 1719 - DoS in Apache HTTP Server with Tomcat and mod_jk via Chunked Encoding HTTP Requests, Medium

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

Entryinfo

Created: 08/06/2014 18:31
Updated: 08/29/2025 04:30
Changes: 08/06/2014 18:31 (64), 05/11/2019 16:51 (8), 02/15/2025 19:49 (19), 08/29/2025 04:30 (2)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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