Mozilla Thunderbird up to 78.9.0 OpenPGP Key cleartext transmission

CVSS Meta Temp Score
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CTI Interest Score
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3.0$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in Mozilla Thunderbird up to 78.9.0. The affected element is an unknown function of the component OpenPGP Key Handler. The manipulation leads to cleartext transmission. This vulnerability is uniquely identified as CVE-2021-23991. The attack is possible to be carried out remotely. No exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Mozilla Thunderbird up to 78.9.0 (Mail Client Software) and classified as problematic. This issue affects some unknown functionality of the component OpenPGP Key Handler. The manipulation with an unknown input leads to a cleartext transmission vulnerability. Using CWE to declare the problem leads to CWE-319. The product transmits sensitive or security-critical data in cleartext in a communication channel that can be sniffed by unauthorized actors. Impacted is confidentiality.

The weakness was disclosed 06/25/2021. The advisory is shared at mozilla.org. The identification of this vulnerability is CVE-2021-23991. 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 T1040 for this issue.

Upgrading to version 78.9.1 eliminates this vulnerability. The upgrade is hosted for download at mozilla.org.

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

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.1
VulDB Meta Temp Score: 3.0

VulDB Base Score: 3.1
VulDB Temp Score: 3.0
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: Cleartext transmission
CWE: CWE-319 / CWE-310
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: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Thunderbird 78.9.1

Timelineinfo

01/13/2021 🔍
06/25/2021 +162 days 🔍
06/25/2021 +0 days 🔍
07/02/2021 +7 days 🔍

Sourcesinfo

Vendor: mozilla.org

Advisory: mozilla.org
Status: Confirmed

CVE: CVE-2021-23991 (🔍)
GCVE (CVE): GCVE-0-2021-23991
GCVE (VulDB): GCVE-100-177557

Entryinfo

Created: 06/25/2021 11:11
Updated: 07/02/2021 09:27
Changes: 06/25/2021 11:11 (40), 07/02/2021 09:27 (5)
Complete: 🔍
Cache ID: 216::103

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