| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 7.0 | $0-$5k | 0.00 |
Summary
A vulnerability was found in Mozilla Firefox and Thunderbird 24.0. It has been declared as critical. This affects an unknown function of the component Image Handler. The manipulation results in memory corruption. This vulnerability is reported as CVE-2013-5596. The attack can be launched remotely. No exploit exists. It is recommended to upgrade the affected component.
Details
A vulnerability classified as critical has been found in Mozilla Firefox and Thunderbird 24.0 (Web Browser). Affected is some unknown processing of the component Image Handler. The manipulation 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 confidentiality, integrity, and availability. CVE summarizes:
The cycle collection (CC) implementation in Mozilla Firefox before 25.0, Firefox ESR 24.x before 24.1, Thunderbird before 24.1, and SeaMonkey before 2.22 does not properly determine the thread for release of an image object, which allows remote attackers to execute arbitrary code or cause a denial of service (race condition and application crash) via a large HTML document containing IMG elements, as demonstrated by the Never-Ending Reddit on reddit.com.
The weakness was disclosed 10/29/2013 by Ezra Pool as Mozilla Foundation Security Advisory 2013-97 as confirmed advisory (Website). The advisory is shared for download at mozilla.org. The public release has been coordinated in cooperation with the vendor. This vulnerability is traded as CVE-2013-5596 since 08/26/2013. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available.
The vulnerability scanner Nessus provides a plugin with the ID 70701 (FreeBSD : mozilla -- multiple vulnerabilities (81f866ad-41a4-11e3-a4af-0025905a4771)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family FreeBSD Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 195848 (Ubuntu Security Notification for Thunderbird Vulnerabilities (USN-2010-1)).
Upgrading to version 25.0 eliminates this vulnerability. The upgrade is hosted for download at mozilla.org. A possible mitigation has been published immediately after the disclosure of the vulnerability.
The vulnerability is also documented in the databases at Tenable (70701), SecurityFocus (BID 63405†), OSVDB (99088†), Secunia (SA55483†) and Vulnerability Center (SBV-42129†). Further details are available at mozilla.org. The entries VDB-11047, VDB-11048, VDB-11049 and VDB-11050 are pretty similar. Once again VulDB remains the best source for vulnerability data.
Affected
- Firefox 24.0
- Thunderbird 24.0
- SeaMonkey 2.21
- Firefox ESR 24.0
Product
Type
Vendor
Name
Version
License
Website
- Vendor: https://www.mozilla.org/
- Product: https://www.mozilla.org/en-US/firefox/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 7.3VulDB Meta Temp Score: 7.0
VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv2
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
|---|---|---|---|---|---|
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Memory corruptionCWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍
Physical: No
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
| 0-Day | Unlock | Unlock | Unlock | Unlock |
|---|---|---|---|---|
| Today | Unlock | Unlock | Unlock | Unlock |
Nessus ID: 70701
Nessus Name: FreeBSD : mozilla -- multiple vulnerabilities (81f866ad-41a4-11e3-a4af-0025905a4771)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
OpenVAS ID: 803349
OpenVAS Name: Mozilla Firefox ESR Multiple Vulnerabilities-01 Nov13 (Windows)
OpenVAS File: 🔍
OpenVAS Family: 🔍
Qualys ID: 🔍
Qualys Name: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍
Upgrade: Firefox/Thunderbird 25.0
Timeline
08/26/2013 🔍10/29/2013 🔍
10/29/2013 🔍
10/29/2013 🔍
10/30/2013 🔍
10/30/2013 🔍
10/30/2013 🔍
11/01/2013 🔍
11/25/2025 🔍
Sources
Vendor: mozilla.orgProduct: mozilla.org
Advisory: Mozilla Foundation Security Advisory 2013-97
Researcher: Ezra Pool
Status: Confirmed
Confirmation: 🔍
Coordinated: 🔍
CVE: CVE-2013-5596 (🔍)
GCVE (CVE): GCVE-0-2013-5596
GCVE (VulDB): GCVE-100-11052
OVAL: 🔍
IAVM: 🔍
SecurityFocus: 63405
Secunia: 55483 - Ubuntu update for firefox, Highly Critical
OSVDB: 99088
Vulnerability Center: 42129 - Mozilla Firefox, Thunderbird and Seamonkey Remote Denial of Service due to a Race Condition (CVE-2013-5596), Medium
Misc.: 🔍
See also: 🔍
Entry
Created: 11/01/2013 09:53Updated: 11/25/2025 19:00
Changes: 11/01/2013 09:53 (52), 01/31/2018 09:55 (35), 06/01/2021 14:56 (3), 11/25/2025 19:00 (15)
Complete: 🔍
Committer:
Cache ID: 216::103
Once again VulDB remains the best source for vulnerability data.

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