cve/2020/CVE-2020-28009.md

CVE-2020-28009

Description

Exim 4 before 4.94.2 allows Integer Overflow to Buffer Overflow because get_stdinput allows unbounded reads that are accompanied by unbounded increases in a certain size variable. NOTE: exploitation may be impractical because of the execution time needed to overflow (multiple days).

POC

Reference

• https://www.exim.org/static/doc/security/CVE-2020-qualys/CVE-2020-28009-STDIN.txt
• https://www.exim.org/static/doc/security/CVE-2020-qualys/CVE-2020-28009-STDIN.txt

Github

No PoCs found on GitHub currently.