Mozilla Firefox 39 MPEG4 Video File ESDS Chunk memory corruption

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.4$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in Mozilla Firefox 39. This affects an unknown function of the component MPEG4 Video File Handler. Such manipulation as part of ESDS Chunk leads to memory corruption. This vulnerability is documented as CVE-2015-4493. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Mozilla Firefox 39 (Web Browser). Affected by this issue is an unknown code block of the component MPEG4 Video File Handler. The manipulation as part of a ESDS Chunk 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 weakness was released 08/11/2015 as MFSA 2015-83 as confirmed security advisory (Website). The advisory is shared for download at mozilla.org. This vulnerability is handled as CVE-2015-4493 since 06/10/2015. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 85336 (CentOS 5 / 6 / 7 : firefox (CESA-2015:1586)), 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 123849 (CentOS Security Update for firefox Security Update (CESA-2015:1586)).

Upgrading to version 40 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 (105575) and Tenable (85336). Entries connected to this vulnerability are available at VDB-76999, VDB-77001, VDB-77075 and VDB-77077. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.4

VulDB Base Score: 7.3
VulDB Temp Score: 6.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

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: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 85336
Nessus Name: CentOS 5 / 6 / 7 : firefox (CESA-2015:1586)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 703333
OpenVAS Name: Debian Security Advisory DSA 3333-1 (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 40

Timelineinfo

06/10/2015 🔍
08/11/2015 +62 days 🔍
08/11/2015 +0 days 🔍
08/14/2015 +3 days 🔍
08/15/2015 +1 days 🔍
10/22/2024 +3356 days 🔍

Sourcesinfo

Vendor: mozilla.org
Product: mozilla.org

Advisory: MFSA 2015-83
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-4493 (🔍)
GCVE (CVE): GCVE-0-2015-4493
GCVE (VulDB): GCVE-100-77096

OVAL: 🔍

X-Force: 105575 - Mozilla Firefox ESDS buffer overflow
SecurityTracker: 1033247

See also: 🔍

Entryinfo

Created: 08/14/2015 10:57
Updated: 10/22/2024 23:08
Changes: 08/14/2015 10:57 (60), 10/08/2017 09:56 (8), 06/09/2022 14:56 (4), 06/09/2022 15:00 (1), 10/22/2024 23:08 (15)
Complete: 🔍
Cache ID: 216:701:103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Might our Artificial Intelligence support you?

Check our Alexa App!