Mozilla Firefox up to 1.0.6 Unicode zero-width non-joiner heap-based overflow

CVSS Meta Temp Score
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CTI Interest Score
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5.7$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in Mozilla Firefox up to 1.0.6. This affects an unknown part of the component Unicode zero-width non-joiner Handler. Executing a manipulation can lead to heap-based overflow. This vulnerability is tracked as CVE-2005-2701. The attack can be launched remotely. Moreover, an exploit is present. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Mozilla Firefox up to 1.0.6 (Web Browser). It has been declared as critical. This vulnerability affects an unknown code block of the component Unicode zero-width non-joiner Handler. The manipulation with an unknown input leads to a heap-based overflow vulnerability. The CWE definition for the vulnerability is CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Heap-based buffer overflow in Firefox before 1.0.7 and Mozilla Suite before 1.7.12 allows remote attackers to execute arbitrary code via an XBM image file that ends in a large number of spaces instead of the expected end tag.

The weakness was disclosed 09/23/2005 by Mats Palmgren as MFSA2005-58 as confirmed advisory (Website). The advisory is available at mozilla.org. This vulnerability was named CVE-2005-2701 since 08/26/2005. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. Technical details are unknown but a public exploit is available.

It is declared as proof-of-concept. As 0-day the estimated underground price was around $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 19835 (RHEL 4 : firefox (RHSA-2005:785)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Red Hat Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 115281 (Multiple Vulnerabilities in Firefox and Mozilla Suite (Mozilla Foundation MFSA 2005-58)).

Upgrading eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at mozilla.org. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published 2 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (22373), Tenable (19835), SecurityFocus (BID 14784†), OSVDB (19648†) and Secunia (SA16911†). The entries VDB-1739, VDB-1740, VDB-1742 and VDB-1757 are pretty similar. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 5.7

VulDB Base Score: 6.3
VulDB Temp Score: 5.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Heap-based overflow
CWE: CWE-122 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

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

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 19835
Nessus Name: RHEL 4 : firefox (RHSA-2005:785)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 55515
OpenVAS Name: Debian Security Advisory DSA 838-1 (mozilla-firefox)
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: 🔍

Patch: mozilla.org

Timelineinfo

08/26/2005 🔍
09/09/2005 +14 days 🔍
09/22/2005 +13 days 🔍
09/23/2005 +1 days 🔍
09/23/2005 +0 days 🔍
09/23/2005 +0 days 🔍
09/23/2005 +0 days 🔍
09/26/2005 +2 days 🔍
10/02/2005 +6 days 🔍
10/05/2005 +3 days 🔍
07/12/2024 +6855 days 🔍

Sourcesinfo

Vendor: mozilla.org
Product: mozilla.org

Advisory: MFSA2005-58
Researcher: Mats Palmgren
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2005-2701 (🔍)
GCVE (CVE): GCVE-0-2005-2701
GCVE (VulDB): GCVE-100-1762

OVAL: 🔍

X-Force: 22373
SecurityFocus: 14784 - Mozilla/Netscape/Firefox Browsers Domain Name Remote Buffer Overflow Vulnerability
Secunia: 16911 - Firefox Multiple Vulnerabilities, Highly Critical
OSVDB: 19648 - Mozilla Multiple Browsers about: Page Privilege Escalation
SecurityTracker: 1014954 - Mozilla Firefox Integer/Buffer Overflows, Spoofing Bugs, and Access Control Errors Let Remote Users Execute Arbitrary Code
Vulnerability Center: 9428
Vupen: ADV-2005-1824

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

Entryinfo

Created: 09/26/2005 12:40
Updated: 07/12/2024 06:44
Changes: 09/26/2005 12:40 (82), 01/31/2018 09:53 (10), 03/12/2021 07:02 (7), 03/12/2021 07:09 (1), 07/12/2024 06:44 (15)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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