CVE-2019-11755

Advisory lineage Upstream: 0 Downstream: 11
Modified
Published: 27 Sept 2019, 17:10
Last modified:04 Aug 2024, 23:03

Vulnerability Summary

Overall Risk (default)
medium
30/100
CVSS Score
7.5 HIGH
v3.1 (nvd)
EPSS Score
0.41% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

27 Sept 2019, 17:10
Published
Vulnerability first disclosed
04 Aug 2024, 23:03
Last Modified
Vulnerability information updated

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.

CVSS Metrics

  • v3.1•HIGH•Score: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
  • v2.0•MEDIUM•Score: 5AV:N/AC:L/Au:N/C:N/I:P/A:N

EPSS Trends

Current EPSS score: 0.41%• Percentile: 61%

Techniques & Countermeasures

  • CWE-347•Improper Verification of Cryptographic Signature

    The product does not verify, or incorrectly verifies, the cryptographic signature for data.

Affected Systems

  • mozilla•thunderbird

    < 68.1.1 | ≥ unspecified, < 68.1.1

References (9)