CVEvulnerability

CVE-2019-14664

6.5 MEDIUM Published 2019-08-05 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2019-08-05
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
CVSS 2.0 ([email protected])
4.3 MEDIUM — AV:N/AC:M/Au:N/C:P/I:N/A:N
Weaknesses
CWE-319

Description

In Enigmail below 2.1, an attacker in possession of 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, he unknowingly leaks the plaintext of the encrypted message part(s) back to the attacker. This attack variant bypasses protection mechanisms implemented after the "EFAIL" attacks.

Affected configurations

• enigmail enigmail (< 2.1) • fedoraproject fedora 30 • fedoraproject fedora 31 • fedoraproject fedora 32

Related

Weakness · CWE (1)

  • CWE-319 Cleartext Transmission of Sensitive Information weakness

References