zlib 1.2.0/1.2.1/1.2.2 inftrees.c memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in zlib 1.2.0/1.2.1/1.2.2. Affected by this vulnerability is an unknown functionality of the file inftrees.c. The manipulation results in memory corruption. This vulnerability is cataloged as CVE-2005-2096. The attack must originate from the local network. There is no exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in zlib 1.2.0/1.2.1/1.2.2. Affected is some unknown functionality of the file inftrees.c. The manipulation 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 confidentiality, integrity, and availability. CVE summarizes:

zlib 1.2 and later versions allows remote attackers to cause a denial of service (crash) via a crafted compressed stream with an incomplete code description of a length greater than 1, which leads to a buffer overflow, as demonstrated using a crafted PNG file.

The bug was discovered . The weakness was shared 07/06/2005 by Tavis Ormandy (@taviso) with Gentoo Linux Security Audit Team (Website). The advisory is shared for download at gentoo.org. This vulnerability is traded as CVE-2005-2096 since 06/30/2005. The attack can only be initiated within the local network. The exploitation doesn't require any form of authentication. There are known technical details, but no exploit is available.

It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 12970 days. During that time the estimated underground price was around $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 18799 (Slackware 10.0 / 10.1 / current : zlib DoS (SSA:2005-189-01)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Slackware Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 19690 (MySQL Multiple Vulnerabilities).

Upgrading eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (24064), Tenable (18799), SecurityFocus (BID 14162†), OSVDB (17827†) and Secunia (SA18507†). The entries VDB-1816, VDB-26219 and VDB-31985 are related to this item. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 5.5

VulDB Base Score: 6.3
VulDB Temp Score: 5.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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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: 18799
Nessus Name: Slackware 10.0 / 10.1 / current : zlib DoS (SSA:2005-189-01)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 56537
OpenVAS Name: Debian Security Advisory DSA 1026-1 (sash)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Timelineinfo

06/30/2005 🔍
07/06/2005 +6 days 🔍
07/06/2005 +0 days 🔍
07/06/2005 +0 days 🔍
07/06/2005 +0 days 🔍
07/06/2005 +0 days 🔍
07/07/2005 +1 days 🔍
07/11/2005 +3 days 🔍
07/13/2005 +2 days 🔍
01/19/2025 +7130 days 🔍

Sourcesinfo

Advisory: gentoo.org
Researcher: Tavis Ormandy (@taviso)
Organization: Gentoo Linux Security Audit Team
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2005-2096 (🔍)
GCVE (CVE): GCVE-0-2005-2096
GCVE (VulDB): GCVE-100-1584

OVAL: 🔍

CERT: 🔍
X-Force: 24064 - HP-UX Secure Shell denial of service, Medium Risk
SecurityFocus: 14162 - Zlib Compression Library Buffer Overflow Vulnerability
Secunia: 18507 - Avaya PDS HP-UX SecureShell Denial of Service Vulnerability, Moderately Critical
OSVDB: 17827 - zlib inftrees.c Crafted Compressed Stream Overflow DoS
SecurityTracker: 1014398
Vulnerability Center: 8529
Vupen: ADV-2006-0144

See also: 🔍

Entryinfo

Created: 07/11/2005 15:47
Updated: 01/19/2025 05:33
Changes: 07/11/2005 15:47 (89), 07/03/2019 14:45 (7), 06/14/2024 17:02 (17), 01/19/2025 05:33 (1)
Complete: 🔍
Cache ID: 216:C5F:103

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

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