Stack-based Buffer Overflow Affecting thunderbird package, versions <0:78.5.1-1.el8_3


Severity

Recommended
0.0
high
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.18% (57th percentile)

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  • Snyk IDSNYK-CENTOS8-THUNDERBIRD-2087136
  • published26 Jul 2021
  • disclosed1 Dec 2020

Introduced: 1 Dec 2020

CVE-2020-26970  (opens in a new tab)
CWE-121  (opens in a new tab)

How to fix?

Upgrade Centos:8 thunderbird to version 0:78.5.1-1.el8_3 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream thunderbird package and not the thunderbird package as distributed by Centos. See How to fix? for Centos:8 relevant fixed versions and status.

When reading SMTP server status codes, Thunderbird writes an integer value to a position on the stack that is intended to contain just one byte. Depending on processor architecture and stack layout, this leads to stack corruption that may be exploitable. This vulnerability affects Thunderbird < 78.5.1.

CVSS Scores

version 3.1