Mozilla Firefox 31.2/33.0 HTML5 use after free

CVSS Meta Temp Score
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CTI Interest Score
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4.6$0-$5k0.00

Summaryinfo

A vulnerability was found in Mozilla Firefox 31.2/33.0. It has been classified as problematic. Affected by this issue is some unknown functionality of the component HTML5 Handler. This manipulation causes use after free. This vulnerability is handled as CVE-2014-1592. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as problematic was found in Mozilla Firefox 31.2/33.0 (Web Browser). Affected by this vulnerability is an unknown code block of the component HTML5 Handler. The manipulation with an unknown input leads to a use after free vulnerability. The CWE definition for the vulnerability is CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. As an impact it is known to affect availability.

The weakness was released 12/02/2014 by Berend-Jan Wever as mfsa2014-87 as confirmed advisory (Website). It is possible to read the advisory at mozilla.org. This vulnerability is known as CVE-2014-1592 since 01/16/2014. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available. The advisory points out:

Security researcher Berend-Jan Wever reported a use-after-free created by triggering the creation of a second root element while parsing HTML written to a document created with document.open(). This leads to a potentially exploitable crash.

The vulnerability scanner Nessus provides a plugin with the ID 79693 (CentOS 5 / 6 / 7 : firefox (CESA-2014:1919)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CentOS Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 195690 (Ubuntu Security Notification for Thunderbird Vulnerabilities (USN-2428-1)).

Upgrading to version 34 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (99064), Tenable (79693), SecurityFocus (BID 71398†), SecurityTracker (ID 1031286†) and Vulnerability Center (SBV-47388†). Additional details are provided at bugzilla.mozilla.org. Entries connected to this vulnerability are available at VDB-68306, VDB-68307, VDB-68308 and VDB-68309. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Affected

  • Mozilla Firefox 33
  • Mozilla Firefox ESR 31.2
  • Mozilla Thunderbird 31.2

Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 4.6

VulDB Base Score: 5.3
VulDB Temp Score: 4.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 79693
Nessus Name: CentOS 5 / 6 / 7 : firefox (CESA-2014:1919)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 703090
OpenVAS Name: Debian Security Advisory DSA 3090-1 (iceweasel - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: Firefox 34

Timelineinfo

01/16/2014 🔍
12/02/2014 +320 days 🔍
12/02/2014 +0 days 🔍
12/02/2014 +0 days 🔍
12/02/2014 +0 days 🔍
12/03/2014 +1 days 🔍
12/03/2014 +0 days 🔍
12/03/2014 +0 days 🔍
12/11/2014 +8 days 🔍
11/25/2025 +4002 days 🔍

Sourcesinfo

Vendor: mozilla.org
Product: mozilla.org

Advisory: mfsa2014-87
Researcher: Berend-Jan Wever
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2014-1592 (🔍)
GCVE (CVE): GCVE-0-2014-1592
GCVE (VulDB): GCVE-100-68311

OVAL: 🔍

X-Force: 99064 - Mozilla Firefox and Thunderbird HTML 5 denial of service, Medium Risk
SecurityFocus: 71398 - Mozilla Firefox/Thunderbird CVE-2014-1592 Use After Free Memory Corruption Vulnerability
SecurityTracker: 1031286 - Mozilla Firefox Bugs Let Remote Users Execute Arbitrary Code, Bypass Security Restrictions, and Obtain Potentially Sensitive Information
Vulnerability Center: 47388 - Mozilla Firefox, Thunderbird and SeaMonkey Remote Code Execution and DoS Vulnerability due to Use-After-Free Memory Corruption, Medium

Misc.: 🔍
See also: 🔍

Entryinfo

Created: 12/03/2014 10:27
Updated: 11/25/2025 22:55
Changes: 12/03/2014 10:27 (84), 06/13/2017 08:46 (3), 02/27/2022 12:42 (3), 02/27/2022 12:50 (1), 11/25/2025 22:55 (15)
Complete: 🔍
Cache ID: 216:358:103

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