Vulnerability in Enigmail
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 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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.018 (78.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 78th percentile — 78.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.018 · newest: 0.018 · change: 0.000
Affected products
- Enigmail
- Debian Linux — versions 7.0, 8.0, 9.0
Weakness classification (CWE)
References
- 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, Mailing List, Third Party Advisory)
- www.debian.org/security/2017/dsa-4070 (vendor-advisory, Third Party Advisory)
- www.openwall.com/lists/oss-security/2019/04/30/4 (mailing-list, Mailing List, Third Party Advisory)
- seclists.org/fulldisclosure/2019/Apr/38 (mailing-list, Mailing List, Third Party Advisory)
- packetstormsecurity.com/files/152703/Johnny-You-Are-Fired.html (VDB Entry, Third Party Advisory)
- github.com/RUB-NDS/Johnny-You-Are-Fired
- github.com/RUB-NDS/Johnny-You-Are-Fired/blob/master/paper/johnny-fired.pdf
Frequently asked questions
- What is CVE-2017-17848?
- CVE-2017-17848 is a high-severity vulnerability in Enigmail, classified under Improper Verification of Cryptographic Signature. CVSS score: 7.5/10. Published 2017-12-27.
- How severe is CVE-2017-17848?
- High severity. CVSS v3 base score is 7.5 out of 10.