CVE-2017-17846
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.
02 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.
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 2.18% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 82.1% of scored records. A rank, not a probability.
- NVD base score
- 7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2017-12-22 23:00Z8 YR AGO
- Last updated
- 2024-08-05 21:06Z2 YR AGO
- Reserved
- 2017-12-22
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-20Improper Input ValidationClass
- Data version
- 5.1
- Document digest
- 71257ce9b2d9e810b536b0d77f209e30890ca8b458ce5dac2edccfe60c0d5841
05 Affected products
06 References
- enigmail.nethttps://enigmail.net/download/other/Enigmail%20Pentest%20Report%20by%20Cure53%20-%20Excerpt.pdf
- lists.debian.orghttps://lists.debian.org/debian-security-announce/2017/msg00333.html
- www.mail-archive.comhttps://www.mail-archive.com/enigmail-users%40enigmail.net/msg04280.html
- lists.debian.org[debian-lts-announce] 20171223 [SECURITY] [DLA 1219-1] enigmail security updatehttps://lists.debian.org/debian-lts-announce/2017/12/msg00021.html
- www.debian.orgDSA-4070https://www.debian.org/security/2017/dsa-4070
07 Fixed in
Debian 11
- enigmail Fixed in 2:1.9.9-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 14.04 LTS
- enigmail Fixed in 2:1.9.9-0ubuntu0.14.04.1
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 16.04 LTS
- enigmail Fixed in 2:1.9.9-0ubuntu0.16.04.1
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.