#VU52856 Heap-based buffer overflow in Exim - CVE-2020-28011
Published: May 4, 2021
Vulnerability identifier: #VU52856
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2020-28011
CWE-ID: CWE-122
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Exim
Exim
Software vendor:
Exim
Exim
Description
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary error in queue_run() function. A local user can trigger heap-based buffer overflow and execute arbitrary code with elevated privileges.
Remediation
Install updates from vendor's website.