CVE-2020-28025 Information
Share on:
Jun 06, 2022
cve
Description
Exim 4 before 4.94.2 allows Out-of-bounds Read because pdkim_finish_bodyhash does not validate the relationship between sig->bodyhash.len and b->bh.len; thus a crafted DKIM-Signature header might lead to a leak of sensitive information from process memory.
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Reference
https://www.exim.org/static/doc/security/CVE-2020-qualys/CVE-2020-28025-BHASH.txt
Attack Complexity
LOW
Privileges Required
NONE
User Interaction Required
NONE
Scope
NONE
Confidentiality Impact
UNCHANGED
Integrity Impact
HIGH
Availability Impact
NONE
Base Score
NONE
Base Severity
7.5