SB2019092612 - Spoofing attack in Mozilla Thunderbird

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Main Vulnerability Database SB2019092612

SB2019092612 - Spoofing attack in Mozilla Thunderbird

Published: September 26, 2019

Security Bulletin ID SB2019092612
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Spoofing attack (CVE-ID: CVE-2019-11755)

CWE-ID: CWE-451 - User Interface (UI) Misrepresentation of Critical Information (Clickjacking, spoofing)

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a remote attacker to perform spoofing attack.

The vulnerability exists due to incorrect processing of S/MIME messages, consisting of an inner encryption layer and an outer SignedData layeruser-supplied data. A remote attacker can create a specially crafted message and make it look as it was signed with a valid signature. Although the signer might have had no access to the contents of the encrypted message, and might have stripped a different signature from the encrypted message.


Remediation

Install update from vendor's website.

References