CVE-2017-17848

Name: CVE-2017-17848
Creator: NVD / NIST
Published: 2017-12-27T17:08:19.92+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.84%

Last modified Jun 17, 2026

CVE-2017-17848 is a vulnerability of currently unknown severity. 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. EPSS estimates a 1.84% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability

1.84%

76.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-347

Affected Software

Vendor	Product	Versions
Enigmail	Enigmail	< 1.9.9
Debian	Debian Linux	7.0
Debian	Debian Linux	8.0
Debian	Debian Linux	9.0

References

http://packetstormsecurity.com/files/152703/Johnny-You-Are-Fired.htmlThird Party Advisory, VDB Entry
http://seclists.org/fulldisclosure/2019/Apr/38Mailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2019/04/30/4Mailing List, Third 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.pdf
https://lists.debian.org/debian-lts-announce/2017/12/msg00021.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-security-announce/2017/msg00333.htmlMailing List, Third 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 Advisory, VDB Entry
http://seclists.org/fulldisclosure/2019/Apr/38Mailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2019/04/30/4Mailing List, Third 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.pdf
https://lists.debian.org/debian-lts-announce/2017/12/msg00021.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-security-announce/2017/msg00333.htmlMailing List, Third Party Advisory
https://sourceforge.net/p/enigmail/bugs/709/Third Party Advisory
https://www.debian.org/security/2017/dsa-4070Third Party Advisory

Timeline

Published: Dec 27, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-17848?

How severe is CVE-2017-17848?

Severity scoring for CVE-2017-17848 is pending analysis. The EPSS model estimates a 1.84% probability of exploitation in the next 30 days.

How do I fix CVE-2017-17848?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2017-17848?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST