w3m up to 0.2.1 Base64 MIME Decodr 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 has been found in w3m up to 0.2.1. This affects an unknown part of the component Base64 MIME Decodr. Performing a manipulation results in memory corruption. This vulnerability is known as CVE-2001-0700. Furthermore, an exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in w3m up to 0.2.1 (Web Browser). This affects some unknown processing of the component Base64 MIME Decodr. 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. The summary by CVE is:

Buffer overflow in w3m 0.2.1 and earlier allows a remote attacker to execute arbitrary code via a long base64 encoded MIME header.

The bug was discovered 06/21/2001. The weakness was published 09/20/2001 (Website). It is possible to read the advisory at securityfocus.com. This vulnerability is uniquely identified as CVE-2001-0700. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are unknown but a public exploit is available.

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 was handled as a non-public zero-day exploit for at least 91 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 14918 (Debian DSA-081-1 : w3m - Buffer Overflow), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l.

Upgrading eliminates this vulnerability. A possible mitigation has been published 4 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (6725), Exploit-DB (20941), Tenable (14918), SecurityFocus (BID 2895†) and OSVDB (1876†). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Name

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

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: No
Local: No
Remote: Yes

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

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 14918
Nessus Name: Debian DSA-081-1 : w3m - Buffer Overflow
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 53759
OpenVAS Name: Debian Security Advisory DSA 081-1 (w3m, w3m-ssl)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Timelineinfo

06/19/2001 🔍
06/19/2001 +0 days 🔍
06/21/2001 +2 days 🔍
09/20/2001 +91 days 🔍
09/20/2001 +0 days 🔍
10/18/2001 +28 days 🔍
09/29/2004 +1077 days 🔍
05/24/2007 +967 days 🔍
07/09/2014 +2603 days 🔍
08/21/2024 +3696 days 🔍

Sourcesinfo

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

CVE: CVE-2001-0700 (🔍)
GCVE (CVE): GCVE-0-2001-0700
GCVE (VulDB): GCVE-100-17415
X-Force: 6725
SecurityFocus: 2895 - W3M Malformed MIME Header Buffer Overflow Vulnerability
OSVDB: 1876 - W3M - Malformed MIME Header - Buffer Overflow Issue
Vulnerability Center: 15213 - w3m Buffer Overflow via Long Base64 Encoded MIME Header, High

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

Entryinfo

Created: 07/09/2014 13:11
Updated: 08/21/2024 05:36
Changes: 07/09/2014 13:11 (76), 07/19/2019 17:49 (5), 08/21/2024 05:36 (17)
Complete: 🔍
Cache ID: 216::103

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