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.
References
Link Resource
https://www.thewildbeast.co.uk/claws-mail/bugzilla/show_bug.cgi?id=4159 Exploit Issue Tracking Third Party Advisory
History

No history.

cve-icon MITRE Information

Status: PUBLISHED

Assigner: mitre

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

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

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


Link: CVE-2019-10735

JSON object: View

cve-icon NVD Information

Status : Analyzed

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

Modified: 2021-07-21T11:39:23.747


Link: CVE-2019-10735

JSON object: View

cve-icon Redhat Information

No data.

CWE