CVE-2017-17846: Input Validation
First published: Fri Dec 22 2017(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/enigmail | 2:2.2.4-0.2~deb10u1 2:2.1.3+ds1-4~deb10u2 2:2.2.4-0.3 | |
| Enigmail Enigmail | <1.9.9 | |
| Debian Debian Linux | =8.0 | |
| Debian Debian Linux | =9.0 |
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Reference Links
- https://enigmail.net/download/other/Enigmail%20Pentest%20Report%20by%20Cure53%20-%20Excerpt.pdf
- https://security-tracker.debian.org/tracker/CVE-2017-17846
- https://lists.debian.org/debian-lts-announce/2017/12/msg00021.html
- https://lists.debian.org/debian-security-announce/2017/msg00333.html
- https://www.debian.org/security/2017/dsa-4070
- https://www.mail-archive.com/enigmail-users@enigmail.net/msg04280.html
- https://www.mail-archive.com/enigmail-users%40enigmail.net/msg04280.html
Frequently Asked Questions
What is the vulnerability ID of this issue?
The vulnerability ID of this issue is CVE-2017-17846.
What is the severity level of CVE-2017-17846?
The severity level of CVE-2017-17846 is high, with a value of 7.5.
What is the impact of CVE-2017-17846?
CVE-2017-17846 can be exploited for Denial of Service attacks due to regular expressions attempts to match arbitrarily long strings.
Which software versions are affected by CVE-2017-17846?
The affected software versions are Enigmail before 1.9.9 and Debian Linux versions 8.0 and 9.0.
How can I fix CVE-2017-17846?
To fix CVE-2017-17846, you should update Enigmail to version 1.9.9 or above, or update your Debian Linux to a fixed version.
- collector/security-tracker-debian
- collector/nvd-index
- agent/references
- agent/severity
- agent/weakness
- agent/author
- agent/tags
- agent/type
- agent/event
- agent/description
- agent/last-modified-date
- agent/softwarecombine
- agent/first-publish-date
- collector/mitre-cve
- source/MITRE
- package-manager/debian
- vendor/enigmail
- canonical/enigmail enigmail
- vendor/debian
- canonical/debian debian linux
- version/debian debian linux/8.0
- version/debian debian linux/9.0