Rapid7 Vulnerability & Exploit Database

Ubuntu: (Multiple Advisories) (CVE-2020-28025): Exim vulnerabilities

Back to Search

Ubuntu: (Multiple Advisories) (CVE-2020-28025): Exim vulnerabilities

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:P/I:N/A:N)
Published
05/04/2021
Created
05/07/2021
Added
05/05/2021
Modified
03/24/2022

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.

Solution(s)

  • ubuntu-upgrade-exim4-base
  • ubuntu-upgrade-exim4-daemon-heavy
  • ubuntu-upgrade-exim4-daemon-light

With Rapid7 live dashboards, I have a clear view of all the assets on my network, which ones can be exploited, and what I need to do in order to reduce the risk in my environment in real-time. No other tool gives us that kind of value and insight.

– Scott Cheney, Manager of Information Security, Sierra View Medical Center

;