In Claws Mail 3.14.1, an attacker in possession of S/MIME or PGP encrypted emails can wrap them as sub-parts within a crafted multipart email. The encrypted part(s) can further be hidden using HTML/CSS or ASCII newline characters. This modified multipart email can be re-sent by the attacker to the intended receiver. If the receiver replies to this (benign looking) email, they unknowingly leak the plaintext of the encrypted message part(s) back to the attacker.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2019-04-07T14:35:32

Updated: 2024-08-04T22:32:01.281Z

Reserved: 2019-04-03T00:00:00

Link: CVE-2019-10735

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2019-04-07T15:29:00.340

Modified: 2024-11-21T04:19:49.393

Link: CVE-2019-10735

cve-icon Redhat

No data.