Mozilla Firefox/Thunderbird up to 1.5.0.3 Crypto crypto.signtext memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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4.8$0-$5k0.00

Summaryinfo

A vulnerability was found in Mozilla Firefox and Thunderbird up to 1.5.0.3. It has been classified as critical. This issue affects the function crypto.signtext of the component Crypto. This manipulation causes memory corruption. This vulnerability is registered as CVE-2006-2778. No exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability has been found in Mozilla Firefox and Thunderbird up to 1.5.0.3 (Web Browser) and classified as critical. Affected by this vulnerability is the function crypto.signtext of the component Crypto. 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 integrity. The summary by CVE is:

The crypto.signText function in Mozilla Firefox and Thunderbird before 1.5.0.4 allows remote attackers to execute arbitrary code via certain optional Certificate Authority name arguments, which causes an invalid array index and triggers a buffer overflow.

The bug was discovered 06/01/2006. The weakness was published 06/02/2006 by Mikolaj J. Habryn (moz_bug_r_a4) with Cybozu Labs as confirmed advisory (CERT.org). It is possible to read the advisory at kb.cert.org. This vulnerability is known as CVE-2006-2778 since 06/02/2006. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit.

It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 22163 (CentOS 4 : seamonkey (CESA-2006:0609)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CentOS Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 156230 (Oracle Enterprise Linux Update for Firefox (ELSA-2006:0733,ELSA-2006:0675,ELSA-2006:0610)).

Upgrading to version 1.5.0.4 eliminates this vulnerability. A possible mitigation has been published 3 months after the disclosure of the vulnerability. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 4656.

The vulnerability is also documented in the databases at X-Force (26849), Tenable (22163), SecurityFocus (BID 18228†), OSVDB (26311†) and Secunia (SA20376†). Similar entries are available at VDB-2174, VDB-2283, VDB-2285 and VDB-2282. 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: 5.3
VulDB Meta Temp Score: 4.8

VulDB Base Score: 5.3
VulDB Temp Score: 4.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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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: 22163
Nessus Name: CentOS 4 : seamonkey (CESA-2006:0609)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 57153
OpenVAS Name: Debian Security Advisory DSA 1118-1 (mozilla)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: Firefox/Thunderbird 1.5.0.4
TippingPoint: 🔍

Timelineinfo

06/01/2006 🔍
06/02/2006 +1 days 🔍
06/02/2006 +0 days 🔍
06/02/2006 +0 days 🔍
06/02/2006 +0 days 🔍
06/02/2006 +0 days 🔍
06/02/2006 +0 days 🔍
06/02/2006 +0 days 🔍
06/12/2006 +10 days 🔍
08/05/2006 +54 days 🔍
08/07/2006 +2 days 🔍
03/12/2015 +3139 days 🔍
01/20/2025 +3602 days 🔍

Sourcesinfo

Vendor: mozilla.org
Product: mozilla.org

Advisory: kb.cert.org
Researcher: Mikolaj J. Habryn (moz_bug_r_a4)
Organization: Cybozu Labs
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2006-2778 (🔍)
GCVE (CVE): GCVE-0-2006-2778
GCVE (VulDB): GCVE-100-30595

OVAL: 🔍

CERT: 🔍
X-Force: 26849
SecurityFocus: 18228 - Mozilla Firefox, SeaMonkey, Camino, and Thunderbird Multiple Remote Vulnerabilities
Secunia: 20376 - Firefox Multiple Vulnerabilities, Highly Critical
OSVDB: 26311 - CVE-2006-2778 - Mozilla - Firefox and Thunderbird - Code Execution Issue
SecurityTracker: 1016202
Vulnerability Center: 11889 - Mozilla Firefox \x26 Thunderbird Code Execution via crypto.signText Function, High
Vupen: ADV-2006-2106

See also: 🔍

Entryinfo

Created: 03/12/2015 12:19
Updated: 01/20/2025 20:03
Changes: 03/12/2015 12:19 (94), 06/20/2019 16:27 (4), 01/20/2025 20:03 (17)
Complete: 🔍
Cache ID: 216::103

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