VDB-19744 · CVE-2002-2102 · XFDB 8627

Jcraft Jzlib up to 0.0.6 Deflated Data InfBlocks.java null pointer dereference

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.1	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Jcraft Jzlib up to 0.0.6 and classified as problematic. Affected is an unknown function of the file InfBlocks.java of the component Deflated Data Handler. Executing a manipulation can lead to null pointer dereference. The identification of this vulnerability is CVE-2002-2102. There is no exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Jcraft Jzlib up to 0.0.6. It has been declared as problematic. This vulnerability affects an unknown code of the file InfBlocks.java of the component Deflated Data Handler. The manipulation with an unknown input leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. As an impact it is known to affect availability. CVE summarizes:

InfBlocks.java in JCraft JZlib before 0.0.7 allow remote attackers to cause a denial of service (NullPointerException) via an invalid block of deflated data.

The weakness was shared 12/31/2002 (Website). The advisory is shared for download at securityfocus.com. This vulnerability was named CVE-2002-2102 since 08/05/2005. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are known technical details, but no exploit is available.

Upgrading to version 0.0.7 eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (8627) and SecurityFocus (BID 4359†). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

Jcraft

Name

Jzlib

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Jzlib 0.0.7

Timelineinfo

03/18/2002 🔍
12/31/2002 +288 days 🔍
12/31/2002 +0 days 🔍
08/05/2005 +948 days 🔍
08/06/2014 +3288 days 🔍
07/09/2024 +3624 days 🔍

Sourcesinfo

Advisory: securityfocus.com⛔
Status: Not defined
Confirmation: 🔍

CVE: CVE-2002-2102 (🔍)
GCVE (CVE): GCVE-0-2002-2102
GCVE (VulDB): GCVE-100-19744
X-Force: 8627
SecurityFocus: 4359 - JZLib Denial Of Service Vulnerability

Entryinfo

Created: 08/06/2014 10:20
Updated: 07/09/2024 00:24
Changes: 08/06/2014 10:20 (46), 06/11/2018 08:44 (8), 07/09/2024 00:24 (17)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.