CVE-2017-17847

HIGH

Enigmail < 1.9.9 - Cryptographic Signature Spoofing via Attachment Handling

Title source: llm
STIX 2.1

Description

An issue was discovered in Enigmail before 1.9.9. Signature spoofing is possible because the UI does not properly distinguish between an attachment signature, and a signature that applies to the entire containing message, aka TBE-01-021. This is demonstrated by an e-mail message with an attachment that is a signed e-mail message in message/rfc822 format.

References (6)

Core 6
Core References
Third Party Advisory x_refsource_misc
https://sourceforge.net/p/enigmail/bugs/709/
Mailing List mailing-list x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2017/12/msg00021.html
Third Party Advisory vendor-advisory x_refsource_debian
https://www.debian.org/security/2017/dsa-4070

Scores

CVSS v3 7.5
EPSS 0.0120
EPSS Percentile 64.1%
Attack Vector NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Details

CWE
CWE-347
Status published
Products (3)
debian/debian_linux 8.0
debian/debian_linux 9.0
enigmail/enigmail < 1.9.9
Published Dec 27, 2017
Tracked Since Feb 18, 2026