gzip 1.3.5 unlzh.c make_table memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.6$0-$5k0.00

Summaryinfo

A vulnerability classified as critical was found in gzip 1.3.5. This vulnerability affects the function make_table of the file unlzh.c. Such manipulation leads to memory corruption. This vulnerability is traded as CVE-2006-4335. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in gzip 1.3.5. It has been rated as critical. Affected by this issue is the function make_table of the file unlzh.c. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Array index error in the make_table function in unlzh.c in the LZH decompression component in gzip 1.3.5, when running on certain platforms, allows context-dependent attackers to cause a denial of service (crash) and possibly execute arbitrary code via a crafted GZIP archive that triggers an out-of-bounds write, aka a "stack modification vulnerability."

The bug was discovered 09/19/2006. The weakness was shared 09/19/2006 by Tavis Ormandy as confirmed advisory (CERT.org). The advisory is available at kb.cert.org. This vulnerability is handled as CVE-2006-4335 since 08/24/2006. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details are known, but there is no available exploit.

It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 23746 (GLSA-200611-24 : LHa: Multiple vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Gentoo Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 185008 (HP-UX Update for Software Distributor Package Remote Denial of Service Vulnerability (HPSBUX02195)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 3 months after the disclosure of the vulnerability. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 11785.

The vulnerability is also documented in the databases at X-Force (29040), Tenable (23746), SecurityFocus (BID 20101†), OSVDB (29005†) and Secunia (SA21996†). The entries VDB-32357, VDB-32356, VDB-32355 and VDB-32353 are related to this item. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.6

VulDB Base Score: 7.3
VulDB Temp Score: 6.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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NVD Base Score: 🔍

Exploitinginfo

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

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 23746
Nessus Name: GLSA-200611-24 : LHa: Multiple vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 57385
OpenVAS Name: Slackware Advisory SSA:2006-262-01 gzip
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍
TippingPoint: 🔍

McAfee IPS: 🔍
McAfee IPS Version: 🔍

PaloAlto IPS: 🔍

Timelineinfo

08/24/2006 🔍
09/19/2006 +26 days 🔍
09/19/2006 +0 days 🔍
09/19/2006 +0 days 🔍
09/19/2006 +0 days 🔍
09/19/2006 +0 days 🔍
09/19/2006 +0 days 🔍
09/20/2006 +1 days 🔍
09/25/2006 +5 days 🔍
11/28/2006 +64 days 🔍
11/30/2006 +2 days 🔍
03/12/2015 +3024 days 🔍
01/13/2025 +3595 days 🔍

Sourcesinfo

Advisory: kb.cert.org
Researcher: Tavis Ormandy
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2006-4335 (🔍)
GCVE (CVE): GCVE-0-2006-4335
GCVE (VulDB): GCVE-100-32354

OVAL: 🔍

CERT: 🔍
X-Force: 29040
SecurityFocus: 20101 - GNU GZip Archive Handling Multiple Remote Vulnerabilities
Secunia: 21996 - gzip Multiple Vulnerabilities, Moderately Critical
OSVDB: 29005 - CVE-2006-4335 - Gzip - Denial of Service Issue
SecurityTracker: 1016883
Vulnerability Center: 12767 - gzip 1.3.5 LZH Decompression Component Might Allow Remote DoS and Code Execution, Medium
Vupen: ADV-2006-3695

See also: 🔍

Entryinfo

Created: 03/12/2015 15:51
Updated: 01/13/2025 10:57
Changes: 03/12/2015 15:51 (82), 07/08/2019 17:46 (13), 01/13/2025 10:57 (17)
Complete: 🔍
Cache ID: 216:3DE:103

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