Mozilla Firefox up to 3.5.1 string memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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7.1$0-$5k0.00

A vulnerability, which was classified as critical, was found in Mozilla Firefox (Web Browser). This affects an unknown code. The manipulation of the argument string 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 availability. The summary by CVE is:

Mozilla Firefox 3.0.x, 3.5, and 3.5.1 on Windows allows remote attackers to cause a denial of service (uncaught exception and application crash) via a long Unicode string argument to the write method. NOTE: this was originally reported as a stack-based buffer overflow. NOTE: on Linux and Mac OS X, a crash resulting from this long string reportedly occurs in an operating-system library, not in Firefox.

The weakness was presented 07/15/2009 (Website). The advisory is shared at redhat.com. This vulnerability is uniquely identified as CVE-2009-2479 since 07/16/2009. 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.

After immediately, there has been an exploit disclosed. The exploit is shared for download at securityfocus.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 40347 (Fedora 11 : kazehakase-0.5.6-11.svn3771_trunk.fc11.3 / Miro-2.0.5-2.fc11 / blam-1.8.5-12.fc11 / etc (2009-7898)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks.

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 (51729) and Tenable (40347). See 49052 for similar entry.

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CPE 2.3info

CPE 2.2info

CVSSv4info

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CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.1

VulDB Base Score: 7.5
VulDB Temp Score: 7.1
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CVSSv2info

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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
ATT&CK: Unknown

Local: No
Remote: Yes

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

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Nessus ID: 40347
Nessus Name: Fedora 11 : kazehakase-0.5.6-11.svn3771_trunk.fc11.3 / Miro-2.0.5-2.fc11 / blam-1.8.5-12.fc11 / etc (2009-7898)
Nessus File: 🔍
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OpenVAS ID: 64465
OpenVAS Name: Fedora Core 11 FEDORA-2009-7898 (firefox)
OpenVAS File: 🔍
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Threat Intelligenceinfo

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Countermeasuresinfo

Recommended: no mitigation known
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Timelineinfo

07/15/2009 🔍
07/15/2009 +0 days 🔍
07/15/2009 +0 days 🔍
07/16/2009 +1 days 🔍
07/16/2009 +0 days 🔍
07/16/2009 +0 days 🔍
07/18/2009 +2 days 🔍
07/20/2009 +1 days 🔍
03/17/2015 +2066 days 🔍
08/12/2021 +2340 days 🔍

Sourcesinfo

Vendor: mozilla.org
Product: mozilla.org

Advisory: redhat.com
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2009-2479 (🔍)
X-Force: 51729
SecurityTracker: 1022580 - Mozilla Firefox Bug in Processing Unicode Characters Lets Remote Users Deny Service
Vulnerability Center: 22901 - Mozilla Firefox 3.5 Long Unicode String Remote Arbitrary Code Execution Vulnerability, Medium
SecurityFocus: 35707
OSVDB: 55931 - Mozilla Firefox Write Method Unicode String Argument Handling Remote Overflow

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

Entryinfo

Created: 03/17/2015 23:38
Updated: 08/12/2021 14:48
Changes: 03/17/2015 23:38 (63), 02/11/2017 16:45 (14), 08/12/2021 14:46 (3), 08/12/2021 14:48 (1)
Complete: 🔍

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