When processing a message that contains multiple S/MIME signatures, a bug in the MIME processing code caused a null pointer dereference, leading to an unexploitable crash. This vulnerability affects Thunderbird < 68.5.
1:68.7.0+build1-0ubuntu0.16.04.21:68.7.0+build1-0ubuntu0.18.04.1Exploitability
AV:NAC:LPR:NUI:RScope
S:UImpact
C:NI:NA:HCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H