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Ubuntu: USN-3897-1 (CVE-2018-18509): Thunderbird vulnerabilities

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Ubuntu: USN-3897-1 (CVE-2018-18509): Thunderbird vulnerabilities

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:N/I:P/A:N)
Published
02/22/2019
Created
03/19/2019
Added
03/07/2019
Modified
09/12/2020

Description

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.

Solution(s)

  • ubuntu-upgrade-thunderbird

References

  • USN-3874-1
  • USN-3896-1
  • USN-3897-1
  • CVE-2018-18509

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