Mozilla Firefox/Firefox ESR/Thunderbird memory corruption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.9$0-$5k0.00

Summaryinfo

A vulnerability was found in Mozilla Firefox, Firefox ESR and Thunderbird and classified as critical. This affects an unknown part. The manipulation results in memory corruption. This vulnerability is reported as CVE-2020-6814. The attack can be launched remotely. No exploit exists. Applying a patch is advised to resolve this issue.

Detailsinfo

A vulnerability classified as critical has been found in Mozilla Firefox, Firefox ESR and Thunderbird (Web Browser) (the affected version is unknown). Affected is an unknown code. 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:

Mozilla developers reported memory safety bugs present in Firefox and Thunderbird 68.5. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Thunderbird < 68.6, Firefox < 74, Firefox < ESR68.6, and Firefox ESR < 68.6.

The weakness was disclosed 03/25/2020. This vulnerability is traded as CVE-2020-6814 since 01/10/2020. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 03/26/2020).

Applying a patch is able to eliminate this problem.

The entries VDB-152350 and VDB-152349 are pretty similar. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.0
VulDB Meta Temp Score: 7.9

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

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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: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/10/2020 🔍
03/25/2020 +75 days 🔍
03/26/2020 +1 days 🔍
05/11/2025 +1871 days 🔍

Sourcesinfo

Vendor: mozilla.org
Product: mozilla.org

Advisory: USN-4328-1
Status: Confirmed

CVE: CVE-2020-6814 (🔍)
GCVE (CVE): GCVE-0-2020-6814
GCVE (VulDB): GCVE-100-152352
See also: 🔍

Entryinfo

Created: 03/26/2020 08:39
Updated: 05/11/2025 01:11
Changes: 03/26/2020 08:39 (36), 03/26/2020 08:44 (18), 05/11/2024 19:28 (19), 05/11/2024 19:37 (1), 05/11/2025 01:11 (5)
Complete: 🔍
Cache ID: 216::103

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

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