Postfix before 3.8.16, 3.9 before 3.9.10, and 3.10 before 3.10.9 sometimes allows a buffer over-read and process crash via an enhanced status code that lacks text after the third number.
3.6.4-1ubuntu1.43.8.6-1ubuntu0.13.10.2-1ubuntu2.13.10.6-4ubuntu2.12.11.0-1ubuntu1.2+esm43.1.0-3ubuntu0.4+esm43.3.0-1ubuntu0.4+esm43.4.13-0ubuntu1.4+esm1Exploitability
AV:NAC:HPR:NUI:NScope
S:UImpact
C:NI:NA:LCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L