Unauthorized File Access Affecting mozilla package, versions [,78.12)


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.14% (50th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-UNMANAGED-MOZILLA-2377703
  • published26 Jan 2022
  • disclosed5 Aug 2021
  • creditUnknown

Introduced: 5 Aug 2021

CVE-2021-29969  (opens in a new tab)
CWE-552  (opens in a new tab)

How to fix?

Upgrade mozilla to version 78.12 or higher.

Overview

Affected versions of this package are vulnerable to Unauthorized File Access. If Thunderbird was configured to use STARTTLS for an IMAP connection, and an attacker injected IMAP server responses prior to the completion of the STARTTLS handshake, then Thunderbird didn't ignore the injected data. This could have resulted in Thunderbird showing incorrect information, for example the attacker could have tricked Thunderbird to show folders that didn't exist on the IMAP server. This vulnerability affects Thunderbird < 78.12.

CVSS Scores

version 3.1