Mozilla Firefox up to 1.5 Host URL BuildNormalizedSpec memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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4.5$0-$5k0.00

Summaryinfo

A vulnerability has been found in Mozilla Firefox up to 1.5 and classified as critical. Affected by this issue is the function nsStandardURL::BuildNormalizedSpec of the component Host URL Handler. The manipulation leads to memory corruption. This vulnerability is traded as CVE-2005-2871. It is possible to initiate the attack remotely. Furthermore, there is an exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Mozilla Firefox up to 1.5 (Web Browser). This issue affects the function nsStandardURL::BuildNormalizedSpec of the component Host URL Handler. 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:

Buffer overflow in the International Domain Name (IDN) support in Mozilla Firefox 1.0.6 and earlier, and Netscape 8.0.3.3 and 7.2, allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a hostname with all "soft" hyphens (character 0xAD), which is not properly handled by the NormalizeIDN call in nsStandardURL::BuildNormalizedSpec.

The bug was discovered 09/09/2005. The weakness was shared 09/08/2005 by Tom Ferris (Website). It is possible to read the advisory at security-protocols.com. The identification of this vulnerability is CVE-2005-2871 since 09/09/2005. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Technical details as well as a public exploit are known.

The exploit is available at security-protocols.com. It is declared as proof-of-concept. We expect the 0-day to have been worth approximately $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 20592 (Ubuntu 4.10 / 5.04 : mozilla, mozilla-thunderbird, mozilla-firefox vulnerabilities (USN-181-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Ubuntu Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 117812 (CentOS Security Update for Thunderbird (CESA-2005:791)).

Upgrading eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at getfirefox.com. The best possible mitigation is suggested to be upgrading to the latest version. 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 (22207), Exploit-DB (1224), Tenable (20592), SecurityFocus (BID 14784†) and OSVDB (19255†). security-protocols.com is providing further details. The entries VDB-1740, VDB-1742 and VDB-1762 are related to this item. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.0
VulDB Meta Temp Score: 4.5

VulDB Base Score: 5.0
VulDB Temp Score: 4.5
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
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 20592
Nessus Name: Ubuntu 4.10 / 5.04 : mozilla, mozilla-thunderbird, mozilla-firefox vulnerabilities (USN-181-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 55516
OpenVAS Name: Debian Security Advisory DSA 837-1 (mozilla-firefox)
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: 🔍

Patch: getfirefox.com

Timelineinfo

09/08/2005 🔍
09/09/2005 +1 days 🔍
09/09/2005 +0 days 🔍
09/09/2005 +0 days 🔍
09/09/2005 +0 days 🔍
09/09/2005 +0 days 🔍
09/09/2005 +0 days 🔍
09/12/2005 +2 days 🔍
10/02/2005 +20 days 🔍
01/15/2006 +105 days 🔍
12/26/2024 +6920 days 🔍

Sourcesinfo

Vendor: mozilla.org
Product: mozilla.org

Advisory: security-protocols.com
Researcher: Tom Ferris
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2005-2871 (🔍)
GCVE (CVE): GCVE-0-2005-2871
GCVE (VulDB): GCVE-100-1739

OVAL: 🔍

CERT: 🔍
X-Force: 22207 - Mozilla IDN support buffer overflow, High Risk
SecurityFocus: 14784 - Mozilla/Netscape/Firefox Browsers Domain Name Remote Buffer Overflow Vulnerability
Secunia: 16767 - Mozilla IDN URL Domain Name Buffer Overflow, Highly Critical
OSVDB: 19255 - Mozilla Multiple Browser International Domain Name (IDN) URL Domain Name Overflow
SecurityTracker: 1014877
Vulnerability Center: 9187
Vupen: ADV-2005-1691

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

Entryinfo

Created: 09/12/2005 11:04
Updated: 12/26/2024 20:59
Changes: 09/12/2005 11:04 (103), 07/04/2019 12:37 (1), 06/25/2024 20:26 (17), 12/26/2024 20:59 (1)
Complete: 🔍
Cache ID: 216::103

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

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