W3C Amaya Web Browser 9.1 html2thot.c msgBuffer memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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9.6$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in W3C Amaya Web Browser 9.1. Affected is an unknown function of the file html2thot.c. Performing a manipulation of the argument msgBuffer results in memory corruption. This vulnerability is known as CVE-2009-0323. Furthermore, an exploit is available.

Detailsinfo

A vulnerability, which was classified as very critical, was found in W3C Amaya Web Browser 9.1 (Web Browser). This affects an unknown code of the file html2thot.c. The manipulation of the argument msgBuffer 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:

Multiple stack-based buffer overflows in W3C Amaya Web Browser 10.0 and 11.0 allow remote attackers to execute arbitrary code via (1) a long type parameter in an input tag, which is not properly handled by the EndOfXmlAttributeValue function; (2) an "HTML GI" in a start tag, which is not properly handled by the ProcessStartGI function; and unspecified vectors in (3) html2thot.c and (4) xml2thot.c, related to the msgBuffer variable. NOTE: these are different vectors than CVE-2008-6005.

The weakness was published 01/28/2009 by Alfredo Ortega with CORE Security Technologies (Website). It is possible to read the advisory at securityfocus.com. This vulnerability is uniquely identified as CVE-2009-0323 since 01/28/2009. 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 and a public exploit are known. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 05/16/2025).

The exploit is shared for download at securityfocus.com. It is declared as highly functional. The vulnerability scanner Nessus provides a plugin with the ID 56495 (FreeBSD : amaya -- multiple buffer overflow vulnerabilities (a89b76a7-f6bd-11dd-94d9-0030843d3802)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family FreeBSD Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 121542 (W3C Amaya Multiple Buffer Overflow Vulnerabilities).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at X-Force (48325), Tenable (56495), SecurityFocus (BID 33046†) and Vulnerability Center (SBV-31494†). Similar entry is available at VDB-45236. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 10.0
VulDB Meta Temp Score: 9.6

VulDB Base Score: 10.0
VulDB Temp Score: 9.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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: 🔍
Access: Public
Status: Highly functional
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 56495
Nessus Name: FreeBSD : amaya -- multiple buffer overflow vulnerabilities (a89b76a7-f6bd-11dd-94d9-0030843d3802)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 63357
OpenVAS Name: FreeBSD Ports: amaya
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

MetaSploit ID: amaya_bdo.rb
MetaSploit Name: Amaya Browser v11.0 bdo Tag Overflow
MetaSploit File: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍
McAfee IPS: 🔍
McAfee IPS Version: 🔍

PaloAlto IPS: 🔍
Fortigate IPS: 🔍

Timelineinfo

01/28/2009 🔍
01/28/2009 +0 days 🔍
01/28/2009 +0 days 🔍
01/28/2009 +0 days 🔍
01/28/2009 +0 days 🔍
05/22/2011 +844 days 🔍
03/17/2015 +1395 days 🔍
05/16/2025 +3713 days 🔍

Sourcesinfo

Advisory: securityfocus.com⛔
Researcher: Alfredo Ortega
Organization: CORE Security Technologies
Status: Not defined

CVE: CVE-2009-0323 (🔍)
GCVE (CVE): GCVE-0-2009-0323
GCVE (VulDB): GCVE-100-46155
X-Force: 48325
SecurityFocus: 33046 - W3C Amaya HTML 'input' Tag Parameter Buffer Overflow Vulnerability
Vulnerability Center: 31494 - W3C Amaya 10.0 and 11.0 Remote Arbitrary Code Execution Vulnerability, High

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

Entryinfo

Created: 03/17/2015 16:11
Updated: 05/16/2025 17:25
Changes: 03/17/2015 16:11 (65), 03/22/2017 21:50 (15), 08/04/2021 09:42 (2), 08/04/2021 09:43 (1), 11/23/2024 05:10 (19), 05/16/2025 17:25 (3)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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