Mozilla Thunderbird up to 78.5.0 SMTP Server Response Code stack-based overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.0$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Mozilla Thunderbird up to 78.5.0. Affected is an unknown function of the component SMTP Server Response Code Handler. Performing a manipulation results in stack-based overflow. This vulnerability is cataloged as CVE-2020-26970. It is possible to initiate the attack remotely. There is no exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in Mozilla Thunderbird up to 78.5.0 (Mail Client Software). This affects some unknown processing of the component SMTP Server Response Code Handler. The manipulation with an unknown input leads to a stack-based overflow vulnerability. CWE is classifying the issue as CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). This is going to have an impact on confidentiality, integrity, and availability.

The weakness was shared 12/03/2020 as mfsa2020-53. The advisory is shared at mozilla.org. This vulnerability is uniquely identified as CVE-2020-26970. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 10/13/2024).

The vulnerability scanner Nessus provides a plugin with the ID 208608 (CentOS 7 : thunderbird (RHSA-2020:5400)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 78.5.1 eliminates this vulnerability. The upgrade is hosted for download at mozilla.org.

The vulnerability is also documented in the vulnerability database at Tenable (208608). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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Vendor

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.1
VulDB Meta Temp Score: 7.1

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Stack-based overflow
CWE: CWE-121 / 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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Nessus ID: 208608
Nessus Name: CentOS 7 : thunderbird (RHSA-2020:5400)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Thunderbird 78.5.1

Timelineinfo

10/12/2020 🔍
12/03/2020 +52 days 🔍
12/03/2020 +0 days 🔍
05/04/2025 +1613 days 🔍

Sourcesinfo

Vendor: mozilla.org

Advisory: mfsa2020-53
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2020-26970 (🔍)
GCVE (CVE): GCVE-0-2020-26970
GCVE (VulDB): GCVE-100-165549

Entryinfo

Created: 12/03/2020 09:56
Updated: 05/04/2025 17:08
Changes: 12/03/2020 09:56 (42), 12/12/2020 10:55 (5), 12/12/2020 10:57 (18), 10/13/2024 13:29 (17), 05/04/2025 17:08 (3)
Complete: 🔍
Cache ID: 216::103

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

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