CVE-2017-17843 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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Test your applications- Snyk IDSNYK-UBUNTU1604-ENIGMAIL-324090
- published27 Dec 2017
- disclosed27 Dec 2017
Introduced: 27 Dec 2017
CVE-2017-17843 (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 that allows remote attackers to trigger use of an intended public key for encryption, because incorrect regular expressions are used for extraction of an e-mail address from a comma-separated list, as demonstrated by a modified Full Name field and a homograph attack, aka TBE-01-002.
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2017-17843
- 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-2017-17843
- 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