Mozilla Thunderbird up to 91.1 SMTP Connection inadequate encryption

| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 4.7 | $0-$5k | 0.00 |
Summary
A vulnerability, which was classified as problematic, was found in Mozilla Thunderbird up to 91.1. This vulnerability affects unknown code of the component SMTP Connection Handler. Such manipulation leads to inadequate encryption. This vulnerability is documented as CVE-2021-38502. The attack can be executed remotely. There is not any exploit available. You should upgrade the affected component.
Details
A vulnerability was found in Mozilla Thunderbird up to 91.1 (Mail Client Software) and classified as problematic. Affected by this issue is some unknown functionality of the component SMTP Connection Handler. The manipulation with an unknown input leads to a inadequate encryption vulnerability. Using CWE to declare the problem leads to CWE-326. The product stores or transmits sensitive data using an encryption scheme that is theoretically sound, but is not strong enough for the level of protection required. Impacted is confidentiality.
The weakness was released 11/03/2021. The advisory is shared for download at mozilla.org. This vulnerability is handled as CVE-2021-38502 since 08/10/2021. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1600.
Upgrading to version 91.2 eliminates this vulnerability. The upgrade is hosted for download at mozilla.org.
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Product
Type
Vendor
Name
Version
License
Website
- Vendor: https://www.mozilla.org/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 4.8VulDB Meta Temp Score: 4.7
VulDB Base Score: 3.7
VulDB Temp Score: 3.6
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 5.9
NVD Vector: 🔍
CVSSv2
| AV | AC | Au | C | I | A |
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| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Inadequate encryptionCWE: CWE-326 / 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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| Today | Unlock | Unlock | Unlock | Unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: Thunderbird 91.2
Timeline
08/10/2021 🔍11/03/2021 🔍
11/03/2021 🔍
11/06/2021 🔍
Sources
Vendor: mozilla.orgAdvisory: mozilla.org
Status: Confirmed
CVE: CVE-2021-38502 (🔍)
GCVE (CVE): GCVE-0-2021-38502
GCVE (VulDB): GCVE-100-185936
Entry
Created: 11/03/2021 08:10Updated: 11/06/2021 11:51
Changes: 11/03/2021 08:10 (41), 11/06/2021 11:44 (1), 11/06/2021 11:51 (18)
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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