Input validation error in Enigmail - CVE-2017-17846

 

Input validation error in Enigmail - CVE-2017-17846

Published: December 27, 2017 / Updated: July 17, 2020


Vulnerability identifier: #VU31378
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2017-17846
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: enigmail.mozdev.org
Affected software:
Enigmail

Detailed vulnerability description

The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.

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.


How to mitigate CVE-2017-17846

Install update from vendor's website.

Sources