CVE-2017-17847

Publication date 27 December 2017

Last updated 25 August 2025

Ubuntu priority

High

Why this priority?

Cvss 3 Severity Score

7.5 · High

Score breakdown

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.

Status

Package Ubuntu Release Status
enigmail 17.10 artful
Fixed 2:1.9.9-0ubuntu0.17.10.1
17.04 zesty Ignored end of life
16.04 LTS xenial
Fixed 2:1.9.9-0ubuntu0.16.04.1
14.04 LTS trusty
Fixed 2:1.9.9-0ubuntu0.14.04.1

Severity score breakdown

Parameter Value
Base score 7.5 · High
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

References

Other references