Vulnerability 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 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Enigmail | Enigmail | < 1.9.9 |
| Debian | Debian Linux | 7.0 |
Related Weaknesses (CWE)
References
- http://packetstormsecurity.com/files/152703/Johnny-You-Are-Fired.htmlThird Party AdvisoryVDB Entry
- http://seclists.org/fulldisclosure/2019/Apr/38Mailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2019/04/30/4Mailing ListThird Party Advisory
- https://github.com/RUB-NDS/Johnny-You-Are-Fired
- https://github.com/RUB-NDS/Johnny-You-Are-Fired/blob/master/paper/johnny-fired.p
- https://lists.debian.org/debian-lts-announce/2017/12/msg00021.htmlMailing ListThird Party Advisory
- https://lists.debian.org/debian-security-announce/2017/msg00333.htmlMailing ListThird Party Advisory
- https://sourceforge.net/p/enigmail/bugs/709/Third Party Advisory
- https://www.debian.org/security/2017/dsa-4070Third Party Advisory
- http://packetstormsecurity.com/files/152703/Johnny-You-Are-Fired.htmlThird Party AdvisoryVDB Entry
- http://seclists.org/fulldisclosure/2019/Apr/38Mailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2019/04/30/4Mailing ListThird Party Advisory
- https://github.com/RUB-NDS/Johnny-You-Are-Fired
- https://github.com/RUB-NDS/Johnny-You-Are-Fired/blob/master/paper/johnny-fired.p
- https://lists.debian.org/debian-lts-announce/2017/12/msg00021.htmlMailing ListThird Party Advisory
FAQ
What is CVE-2017-17848?
CVE-2017-17848 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 c...
How severe is CVE-2017-17848?
CVE-2017-17848 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2017-17848?
Check the references section above for vendor advisories and patch information. Affected products include: Enigmail Enigmail, Debian Debian Linux.