Lynx up to 2.8.6 mailcap memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Lynx up to 2.8.6. This affects an unknown part of the component mailcap. The manipulation leads to memory corruption. This vulnerability is uniquely identified as CVE-2006-7234. Moreover, an exploit is present. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Lynx up to 2.8.6 (Web Browser) and classified as problematic. This issue affects an unknown functionality of the component mailcap. 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. The summary by CVE is:

Untrusted search path vulnerability in Lynx before 2.8.6rel.4 allows local users to execute arbitrary code via malicious (1) .mailcap and (2) mime.types files in the current working directory.

The bug was discovered 10/03/2006. The weakness was disclosed 10/27/2008 as Bug 214205 as confirmed bug report (Bugzilla). The advisory is shared at bugzilla.redhat.com. The identification of this vulnerability is CVE-2006-7234 since 10/27/2008. The exploitation is known to be easy. An attack has to be approached locally. No form of authentication is needed for a successful exploitation. Technical details are unknown but a public exploit is available.

The exploit is available at exploit-db.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 755 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 67759 (Oracle Linux 3 / 4 / 5 : lynx (ELSA-2008-0965)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Oracle Linux Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 165646 (SUSE Enterprise Linux Security Update (SUSE-SR:2009:002)).

Upgrading to version 2.8.1 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 (46132), Exploit-DB (32530), Tenable (67759), SecurityFocus (BID 31917†) and OSVDB (30535†). The entries VDB-36551, VDB-39487, VDB-45741 and VDB-45645 are pretty similar. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.9
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

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

Physical: Partially
Local: Yes
Remote: No

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

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 67759
Nessus Name: Oracle Linux 3 / 4 / 5 : lynx (ELSA-2008-0965)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 880143
OpenVAS Name: Centreon command_name Parameter Remote Command Execution Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: Lynx 2.8.1

Timelineinfo

10/03/2006 🔍
10/03/2006 +0 days 🔍
11/03/2006 +31 days 🔍
10/27/2008 +724 days 🔍
10/27/2008 +0 days 🔍
10/27/2008 +0 days 🔍
10/27/2008 +0 days 🔍
10/27/2008 +0 days 🔍
11/02/2008 +6 days 🔍
07/12/2013 +1713 days 🔍
03/17/2015 +613 days 🔍
02/21/2025 +3629 days 🔍

Sourcesinfo

Advisory: Bug 214205
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2006-7234 (🔍)
GCVE (CVE): GCVE-0-2006-7234
GCVE (VulDB): GCVE-100-44717

OVAL: 🔍

X-Force: 46132
SecurityFocus: 31917 - Lynx '.mailcap' and '.mime.type' Files Local Code Execution Vulnerability
Secunia: 32407
OSVDB: 30535 - Lynx - '.mailcap' and '.mime.type' Files Local Code Execution Issue
SecurityTracker: 1021107
Vulnerability Center: 19905 - Lynx <2.8.6rel.4 Untrusted Search Path Allows Local Code Execution via .mailcap and mime.types files, Medium

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

Entryinfo

Created: 03/17/2015 16:11
Updated: 02/21/2025 03:36
Changes: 03/17/2015 16:11 (77), 08/20/2019 09:43 (11), 02/21/2025 03:36 (25)
Complete: 🔍
Cache ID: 216::103

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