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CVE-2017-17847

Published: 27 December 2017

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.

Priority

High

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package Release Status
enigmail
Launchpad, Ubuntu, Debian
artful
Released (2:1.9.9-0ubuntu0.17.10.1)
trusty
Released (2:1.9.9-0ubuntu0.14.04.1)
upstream
Released (2:1.9.9-1)
xenial
Released (2:1.9.9-0ubuntu0.16.04.1)
zesty Ignored
(end of life)

Severity score breakdown

Parameter Value
Base score 7.5
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact High
Availability impact None
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N