Mozilla Firefox up to 110 AudioWorklet denial of service

CVSS Meta Temp Score
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CTI Interest Score
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7.2$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in Mozilla Firefox up to 110. Affected by this vulnerability is an unknown functionality of the component AudioWorklet Handler. This manipulation causes denial of service. This vulnerability appears as CVE-2023-28162. The attack may be initiated remotely. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in Mozilla Firefox up to 110 (Web Browser). Affected by this vulnerability is some unknown processing of the component AudioWorklet Handler. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability. The summary by CVE is:

While implementing AudioWorklets, some code may have casted one type to another, invalid, dynamic type. This could have led to a potentially exploitable crash. This vulnerability affects Firefox < 111, Firefox ESR < 102.9, and Thunderbird < 102.9.

The weakness was presented 03/14/2023 by Lukas Bernhard as Bug 1811327 as confirmed advisory (Website). The advisory is shared at bugzilla.mozilla.org. The advisory contains:

While implementing AudioWorklets, some code may have casted one type to another, invalid, dynamic type. This could have led to a potentially exploitable crash.
This vulnerability is known as CVE-2023-28162. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1499 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 239802 (TencentOS Server 3: firefox (TSSA-2023:0043)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 111 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 Tenable (239802) and EUVD (EUVD-2023-31870). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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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: 7.2

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CNA Base Score: 8.8
CNA Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 239802
Nessus Name: TencentOS Server 3: firefox (TSSA-2023:0043)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: Firefox 111

Timelineinfo

03/13/2023 🔍
03/14/2023 +1 days 🔍
03/14/2023 +0 days 🔍
04/14/2023 +31 days 🔍
12/02/2025 +963 days 🔍

Sourcesinfo

Vendor: mozilla.org
Product: mozilla.org

Advisory: Bug 1811327
Researcher: Lukas Bernhard
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2023-28162 (🔍)
GCVE (CVE): GCVE-0-2023-28162
GCVE (VulDB): GCVE-100-225973
EUVD: 🔍

Entryinfo

Created: 04/14/2023 16:18
Updated: 12/02/2025 09:45
Changes: 04/14/2023 16:18 (11), 04/14/2023 16:19 (7), 04/14/2023 16:22 (28), 05/03/2023 09:45 (1), 01/09/2025 17:21 (36), 04/27/2025 10:27 (3), 06/20/2025 08:05 (2), 12/02/2025 09:45 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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