Mozilla Thunderbird up to 115.5 PGP/MIME denial of service

CVSS Meta Temp Score
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CTI Interest Score
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4.8$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic was found in Mozilla Thunderbird up to 115.5. This affects an unknown function of the component PGP/MIME. The manipulation results in denial of service. This vulnerability was named CVE-2023-50762. The attack may be performed from remote. There is no available exploit. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Mozilla Thunderbird up to 115.5 (Mail Client Software). It has been classified as problematic. Affected is an unknown function of the component PGP/MIME. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on integrity, and availability. CVE summarizes:

When processing a PGP/MIME payload that contains digitally signed text, the first paragraph of the text was never shown to the user. This is because the text was interpreted as a MIME message and the first paragraph was always treated as an email header section. A digitally signed text from a different context, such as a signed GIT commit, could be used to spoof an email message. This vulnerability affects Thunderbird < 115.6.

The weakness was presented 12/19/2023. The advisory is shared for download at mozilla.org. This vulnerability is traded as CVE-2023-50762 since 12/12/2023. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1499.

The vulnerability scanner Nessus provides a plugin with the ID 214465 (Debian dla-3698 : thunderbird - security update), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 115.6 eliminates this vulnerability. The upgrade is hosted for download at mozilla.org.

The vulnerability is also documented in the vulnerability database at Tenable (214465). Once again VulDB remains the best source for vulnerability data.

Productinfo

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Version

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.9
VulDB Meta Temp Score: 4.8

VulDB Base Score: 5.4
VulDB Temp Score: 5.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 4.3
NVD Vector: 🔍

CVSSv2info

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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: 214465
Nessus Name: Debian dla-3698 : thunderbird - security update

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Thunderbird 115.6

Timelineinfo

12/12/2023 🔍
12/19/2023 +7 days 🔍
12/19/2023 +0 days 🔍
04/21/2025 +488 days 🔍

Sourcesinfo

Vendor: mozilla.org

Advisory: DLA 3698-1
Status: Confirmed

CVE: CVE-2023-50762 (🔍)
GCVE (CVE): GCVE-0-2023-50762
GCVE (VulDB): GCVE-100-248388

Entryinfo

Created: 12/19/2023 16:32
Updated: 04/21/2025 00:43
Changes: 12/19/2023 16:32 (23), 12/19/2023 16:33 (19), 01/12/2024 16:51 (1), 01/12/2024 16:58 (11), 01/23/2025 05:55 (17), 04/21/2025 00:43 (3)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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