Mozilla Firefox/Firefox ESR/Thunderbird denial of service

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.1$0-$5k0.00

Summaryinfo

A vulnerability was found in Mozilla Firefox, Firefox ESR and Thunderbird. It has been rated as problematic. Affected by this issue is some unknown functionality. The manipulation leads to denial of service. This vulnerability is traded as CVE-2021-43536. It is possible to initiate the attack remotely. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Mozilla Firefox, Firefox ESR and Thunderbird (Web Browser) (version unknown). This issue affects an unknown function. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability.

The weakness was shared 12/09/2021. It is possible to read the advisory at mozilla.org. The identification of this vulnerability is CVE-2021-43536 since 11/08/2021. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 208604 (CentOS 7 : thunderbird (RHSA-2021:5046)), which helps to determine the existence of the flaw in a target environment.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (208604). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.1

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

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: 208604
Nessus Name: CentOS 7 : thunderbird (RHSA-2021:5046)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

11/08/2021 🔍
12/09/2021 +31 days 🔍
12/09/2021 +0 days 🔍
05/02/2025 +1240 days 🔍

Sourcesinfo

Vendor: mozilla.org
Product: mozilla.org

Advisory: mozilla.org
Status: Confirmed

CVE: CVE-2021-43536 (🔍)
GCVE (CVE): GCVE-0-2021-43536
GCVE (VulDB): GCVE-100-187859

Entryinfo

Created: 12/09/2021 08:55
Updated: 05/02/2025 20:22
Changes: 12/09/2021 08:55 (37), 12/12/2021 01:24 (1), 10/14/2024 08:29 (16), 05/02/2025 20:22 (3)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Discussion

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