Lynx 2.8.8 HTParse.c convert_to_idna memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.9$0-$5k0.00

Summaryinfo

A vulnerability has been found in Lynx 2.8.8 and classified as critical. This issue affects the function convert_to_idna in the library WWW/Library/Implementation/HTParse.c. This manipulation causes memory corruption. This vulnerability is handled as CVE-2010-2810. There is not any exploit available.

Detailsinfo

A vulnerability was found in Lynx 2.8.8 (Web Browser). It has been declared as critical. Affected by this vulnerability is the function convert_to_idna in the library WWW/Library/Implementation/HTParse.c. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Heap-based buffer overflow in the convert_to_idna function in WWW/Library/Implementation/HTParse.c in Lynx 2.8.8dev.1 through 2.8.8dev.4 allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a malformed URL containing a % (percent) character in the domain name.

The weakness was released 08/20/2010 by Dan Rosenberg (Website). The advisory is shared at bugs.launchpad.net. This vulnerability is known as CVE-2010-2810 since 07/22/2010. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are known, but no exploit is available.

It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 63108 (Ubuntu 10.04 LTS / 11.10 / 12.04 LTS / 12.10 : lynx-cur vulnerabilities (USN-1642-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Ubuntu Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 195353 (Ubuntu Security Notification for Lynx-cur Vulnerabilities (USN-1642-1)).

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 (61007), Tenable (63108), SecurityFocus (BID 42316†) and Vulnerability Center (SBV-37572†). Entry connected to this vulnerability is available at VDB-62868. 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: 7.3
VulDB Meta Temp Score: 6.9

VulDB Base Score: 7.3
VulDB Temp Score: 6.9
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: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 63108
Nessus Name: Ubuntu 10.04 LTS / 11.10 / 12.04 LTS / 12.10 : lynx-cur vulnerabilities (USN-1642-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 841235
OpenVAS Name: Ubuntu Update for lynx-cur USN-1642-1
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

07/22/2010 🔍
08/03/2010 +12 days 🔍
08/09/2010 +6 days 🔍
08/20/2010 +11 days 🔍
08/20/2010 +0 days 🔍
11/30/2012 +833 days 🔍
12/10/2012 +10 days 🔍
03/19/2015 +829 days 🔍
09/23/2021 +2380 days 🔍

Sourcesinfo

Advisory: USN-1642-1
Researcher: Dan Rosenberg
Status: Not defined
Confirmation: 🔍

CVE: CVE-2010-2810 (🔍)
GCVE (CVE): GCVE-0-2010-2810
GCVE (VulDB): GCVE-100-54421

OVAL: 🔍

X-Force: 61007
SecurityFocus: 42316 - Lynx browser 'convert_to_idna()' Function Remote Heap Based Buffer Overflow Vulnerability
Vulnerability Center: 37572 - Lynx 2.8.8dev.1 Through 2.8.8dev.4 Remote Heap Based Buffer Overflow Vulnerability, Medium
Vupen: ADV-2010-2042

See also: 🔍

Entryinfo

Created: 03/19/2015 14:37
Updated: 09/23/2021 13:48
Changes: 03/19/2015 14:37 (68), 04/22/2017 12:55 (7), 09/23/2021 13:42 (3), 09/23/2021 13:48 (1)
Complete: 🔍
Cache ID: 216:FF0:103

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