Mozilla Firefox 39 Web Audio API use after free

CVSS Meta Temp Score
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CTI Interest Score
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8.7$0-$5k0.00

Summaryinfo

A vulnerability has been found in Mozilla Firefox 39 and classified as critical. The impacted element is an unknown function of the component Web Audio API. Performing a manipulation results in use after free. This vulnerability was named CVE-2015-4477. There is no available exploit. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Mozilla Firefox 39 (Web Browser). It has been classified as critical. This affects an unknown part of the component Web Audio API. The manipulation with an unknown input leads to a use after free vulnerability. CWE is classifying the issue as CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Use-after-free vulnerability in the MediaStream playback feature in Mozilla Firefox before 40.0 allows remote attackers to execute arbitrary code via unspecified use of the Web Audio API.

The weakness was presented 08/11/2015 as MFSA 2015-81 as confirmed security advisory (Website). The advisory is shared at mozilla.org. This vulnerability is uniquely identified as CVE-2015-4477 since 06/10/2015. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 06/09/2022).

The vulnerability scanner Nessus provides a plugin with the ID 85338 (FreeBSD : mozilla -- multiple vulnerabilities (c66a5632-708a-4727-8236-d65b2d5b2739)), 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 168677 (OpenSuSE Security Update for Security MozillaThunderbird (openSUSE-SU-2016:0876-1)).

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 (105516), Tenable (85338), SecurityFocus (BID 76301†) and Vulnerability Center (SBV-51894†). See VDB-77000, VDB-77076, VDB-77093 and VDB-77098 for similar entries. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 10.0
VulDB Meta Temp Score: 8.7

VulDB Base Score: 10.0
VulDB Temp Score: 8.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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: 85338
Nessus Name: FreeBSD : mozilla -- multiple vulnerabilities (c66a5632-708a-4727-8236-d65b2d5b2739)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 803463
OpenVAS Name: Mozilla Firefox Multiple Vulnerabilities - Aug15 (Windows)
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 🔍
08/11/2015 +0 days 🔍
08/12/2015 +1 days 🔍
08/13/2015 +1 days 🔍
08/15/2015 +2 days 🔍
06/09/2022 +2490 days 🔍

Sourcesinfo

Vendor: mozilla.org
Product: mozilla.org

Advisory: MFSA 2015-81
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-4477 (🔍)
GCVE (CVE): GCVE-0-2015-4477
GCVE (VulDB): GCVE-100-77073
X-Force: 105516 - Mozilla Firefox Web Audio API code execution
SecurityFocus: 76301
SecurityTracker: 1033247
Vulnerability Center: 51894 - Mozilla Firefox <40 Remote DoS in MediaStream Playback, Medium

See also: 🔍

Entryinfo

Created: 08/13/2015 10:46
Updated: 06/09/2022 11:46
Changes: 08/13/2015 10:46 (67), 10/05/2017 18:20 (7), 06/09/2022 11:39 (2), 06/09/2022 11:46 (1)
Complete: 🔍
Cache ID: 216:FE0:103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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