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Ubuntu: (Multiple Advisories) (CVE-2019-11755): Thunderbird vulnerabilities

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Ubuntu: (Multiple Advisories) (CVE-2019-11755): Thunderbird vulnerabilities

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:N/I:P/A:N)
Published
09/27/2019
Created
11/30/2019
Added
11/27/2019
Modified
09/12/2020

Description

A crafted S/MIME message consisting of an inner encryption layer and an outer SignedData layer was shown as having a valid digital 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. Previous versions had only suppressed showing a digital signature for messages with an outer multipart/signed layer. This vulnerability affects Thunderbird < 68.1.1.

Solution(s)

  • ubuntu-upgrade-thunderbird

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