Improper Input Validation Affecting enigmail package, versions <2:1.9.9-0ubuntu0.16.04.1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-UBUNTU1604-ENIGMAIL-324126
- published27 Dec 2017
- disclosed27 Dec 2017
Introduced: 27 Dec 2017
CVE-2017-17846 (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. Regular expressions are exploitable for Denial of Service, because of attempts to match arbitrarily long strings, aka TBE-01-003.
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2017-17846
- https://www.debian.org/security/2017/dsa-4070
- https://lists.debian.org/debian-lts-announce/2017/12/msg00021.html
- https://security-tracker.debian.org/tracker/CVE-2017-17846
- 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.mail-archive.com/enigmail-users@enigmail.net/msg04280.html
- https://www.mail-archive.com/enigmail-users%40enigmail.net/msg04280.html