CVE-2017-17846

Publication date 27 December 2017

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

An issue was discovered in Enigmail before 1.9.9. Regular expressions are exploitable for Denial of Service, because of attempts to match arbitrarily long strings, aka TBE-01-003.

Status

Show unmaintained releases

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

How can I get the fixes?
What do statuses mean?

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	None
Availability impact	High
Vector	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

MITRE
NVD
Launchpad
Debian

Other references

https://enigmail.net/download/other/Enigmail%20Pentest%20Report%20by%20Cure53%20-%20Excerpt.pdf
https://lists.debian.org/debian-security-announce/2017/msg00333.html
https://www.debian.org/security/2017/dsa-4070
https://www.mail-archive.com/[email protected]/msg04280.html
https://www.cve.org/CVERecord?id=CVE-2017-17846