CVE-2017-17848
An issue was discovered in Enigmail before 1.9.9. In a variant of CVE-2017-17847, signature spoofing is possible for multipart/related messages because a signed message part can be referenced with a
02 Description
An issue was discovered in Enigmail before 1.9.9. In a variant of CVE-2017-17847, signature spoofing is possible for multipart/related messages because a signed message part can be referenced with a
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
- 1.84% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 78.5% 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:H/A:N
- 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-347Improper Verification of Cryptographic SignatureBase
- Data version
- 5.1
- Document digest
- 6803368c0cc39838a5249d5587e8b682a127ff2e8efe21dd3c69749fb3eb0e49
05 Affected products
06 References
- sourceforge.nethttps://sourceforge.net/p/enigmail/bugs/709/
- lists.debian.orghttps://lists.debian.org/debian-security-announce/2017/msg00333.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
- www.openwall.com[oss-security] 20190430 Spoofing OpenPGP and S/MIME Signatures in Emails (multiple clients)http://www.openwall.com/lists/oss-security/2019/04/30/4
- seclists.org20190430 OpenPGP and S/MIME signature forgery attacks in multiple email clientshttp://seclists.org/fulldisclosure/2019/Apr/38
- packetstormsecurity.comhttp://packetstormsecurity.com/files/152703/Johnny-You-Are-Fired.html
- github.comhttps://github.com/RUB-NDS/Johnny-You-Are-Fired
- github.comhttps://github.com/RUB-NDS/Johnny-You-Are-Fired/blob/master/paper/johnny-fired.pdf
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.