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.
| Software | From | Fixed in |
|---|---|---|
| enigmail / enigmail | - | 1.9.9 |
| debian / debian_linux | 8.0 | 8.0.x |
| debian / debian_linux | 7.0 | 7.0.x |
| debian / debian_linux | 9.0 | 9.0.x |
- http://packetstormsecurity.com/files/152703/Johnny-You-Are-Fired.html
- http://seclists.org/fulldisclosure/2019/Apr/38
- http://www.openwall.com/lists/oss-security/2019/04/30/4
- 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.html
- https://lists.debian.org/debian-security-announce/2017/msg00333.html
- https://sourceforge.net/p/enigmail/bugs/709/
- https://www.debian.org/security/2017/dsa-4070
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