Stack Buffer Overflow in libspf2: A Potential Denial of Service and Code Execution Vulnerability

Stack Buffer Overflow in libspf2: A Potential Denial of Service and Code Execution Vulnerability

CVE-2021-20314 · CRITICAL Severity

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Stack buffer overflow in libspf2 versions below 1.2.11 when processing certain SPF macros can lead to Denial of service and potentially code execution via malicious crafted SPF explanation messages.

Learn more about our Web Application Penetration Testing UK.