CVE-2019-19920 Information

Description

sa-exim 4.2.1 allows attackers to execute arbitrary code if they can write a .cf file or a rule. This occurs because Greylisting.pm relies on eval (rather than direct parsing and/or use of the taint feature). This issue is similar to CVE-2018-11805.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Reference

https://bugs.debian.org/94682924 https://lists.debian.org/debian-lts-announce/2020/01/msg00006.html https://marc.info/?l=spamassassin-users&m=157668107325768&w=2 https://marc.info/?l=spamassassin-users&m=157668305026635&w=2 https://usn.ubuntu.com/4520-1/

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

8.8