Integer overflow in Exim - CVE-2020-28009

 

Integer overflow in Exim - CVE-2020-28009

Published: May 4, 2021


Vulnerability identifier: #VU52862
CSH Severity: Low
CVSS v4.0: 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-2020-28009
CWE-ID: CWE-190
Exploitation vector: Local access
Exploit availability: No public exploit available
Vendor: Exim
Affected software:
Exim

Detailed vulnerability description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to integer overflow in get_stdinput() function. A local user can execute arbitrary code with elevated privileges.


How to mitigate CVE-2020-28009

Install updates from vendor's website.

Sources