CVE-2017-17848 json
An issue was discovered in Enigmail before 1.9.9.
published 2017-12-22 8 y ago modified 2026-06-17 4 mo ago also EUVD-2017-8995
- cvss
- 7.5
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.8%
- EPSS 1.8% chance of exploitation in 30 days, percentile 79%
- public exploits
- 0
- none known
Summary
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 cid: URI but not actually displayed. In other words, the entire containing message appears to be signed, but the recipient does not see any of the signed text.
Patch / fix
- enigmail enigmail 1.9.9
- enigmail Debian 11 2:1.9.9-1
debian advisories DEBIAN-CVE-2017-17848
- enigmail Ubuntu 14.04 LTS 2:1.9.9-0ubuntu0.14.04.1
- enigmail Ubuntu 16.04 LTS 2:1.9.9-0ubuntu0.16.04.1
ubuntu advisories UBUNTU-CVE-2017-17848
Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0
Exploit prediction
1.84% chance of exploitation in the next 30 days, higher than 79% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:N/I:P/A:N |
Classification
- Weakness
-
- CWE-347 Improper Verification of Cryptographic Signature
References
-
debian.org
/security/2017/dsa-4070
vendor-advisory, third-party-advisory
-
sourceforge.net
/p/enigmail/bugs/709/
third-party-advisory
-
lists.debian.org
/debian-security-announce/2017/msg00333.html
mailing-list, third-party-advisory
-
lists.debian.org
/debian-lts-announce/2017/12/msg00021.html
mailing-list, third-party-advisory
-
openwall.com
/lists/oss-security/2019/04/30/4
mailing-list, third-party-advisory
-
seclists.org
/fulldisclosure/2019/Apr/38
mailing-list, third-party-advisory
-
packetstormsecurity.com
/files/152703/Johnny-You-Are-Fired.html
third-party-advisory, vdb-entry
- github.com /RUB-NDS/Johnny-You-Are-Fired
- github.com /RUB-NDS/Johnny-You-Are-Fired/blob/master/paper/johnny-fired.pdf
Sources
- CVE List CVE-2017-17848
- NVD CVE-2017-17848
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.