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Improper Verification of Cryptographic Signature Affecting enigmail package, versions <2:1.9.9-0ubuntu0.16.04.1

Severity

 Recommended
0.0
high
0
10

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.48% (76th percentile)

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  • Snyk IDSNYK-UBUNTU1604-ENIGMAIL-324097
  • published27 Dec 2017
  • disclosed27 Dec 2017
Report a new vulnerability Found a mistake?

Introduced: 27 Dec 2017

CVE-2017-17847  (opens in a new tab)
CWE-347  (opens in a new tab)

How to fix?

Upgrade Ubuntu:16.04 enigmail to version 2:1.9.9-0ubuntu0.16.04.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream enigmail package and not the enigmail package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

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.