Improper Verification of Cryptographic Signature Affecting mozilla package, versions [,60.5.1)


Severity

Recommended
0.0
medium
0
10

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

Threat Intelligence

EPSS
0.74% (81st percentile)

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  • Snyk IDSNYK-UNMANAGED-MOZILLA-2378004
  • published26 Jan 2022
  • disclosed26 Apr 2019
  • creditUnknown

Introduced: 26 Apr 2019

CVE-2018-18509  (opens in a new tab)
CWE-347  (opens in a new tab)

How to fix?

Upgrade mozilla to version 60.5.1 or higher.

Overview

Affected versions of this package are vulnerable to Improper Verification of Cryptographic Signature. A flaw during verification of certain S/MIME signatures causes emails to be shown in Thunderbird as having a valid digital signature, even if the shown message contents aren't covered by the signature. The flaw allows an attacker to reuse a valid S/MIME signature to craft an email message with arbitrary content. This vulnerability affects Thunderbird < 60.5.1.

CVSS Scores

version 3.1