CVE-2019-11755
thunderbird - security update
7.5
HIGH
CVSS 3.1
EPSS 0.41%
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.
How to fix CVE-2019-11755
To remediate CVE-2019-11755, upgrade the affected package to a fixed version below.
- —upgrade to 1:68.2.1-1 or later
- —upgrade to 1:68.2.2-1~deb8u1 or later
- —upgrade to 1:68.2.2-1~deb9u1 or later
Is CVE-2019-11755 being exploited?
Low — EPSS is 0.4%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- from 0, < 1:68.2.1-1
- from 0, < 1:68.2.2-1~deb8u1
- from 0, < 1:68.2.2-1~deb9u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |