#VU52865 Out-of-bounds read in Exim - CVE-2020-28023
Published: May 4, 2021
Vulnerability identifier: #VU52865
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2020-28023
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Exim
Exim
Software vendor:
Exim
Exim
Description
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to a boundary condition in smtp_setup_msg() function. A remote attacker can send specially crafted message to the system, trigger out-of-bounds read error and read contents of memory on the system.
Remediation
Install updates from vendor's website.