CVE-2017-17848

high

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.

References

https://www.debian.org/security/2017/dsa-4070

https://sourceforge.net/p/enigmail/bugs/709/

https://lists.debian.org/debian-security-announce/2017/msg00333.html

https://lists.debian.org/debian-lts-announce/2017/12/msg00021.html

https://github.com/RUB-NDS/Johnny-You-Are-Fired/blob/master/paper/johnny-fired.pdf

https://github.com/RUB-NDS/Johnny-You-Are-Fired

http://www.openwall.com/lists/oss-security/2019/04/30/4

http://seclists.org/fulldisclosure/2019/Apr/38

http://packetstormsecurity.com/files/152703/Johnny-You-Are-Fired.html

Details

Source: Mitre, NVD

Published: 2017-12-27

Updated: 2019-05-16

Risk Information

CVSS v2

Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:N

Severity: Medium

CVSS v3

Base Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Severity: High