Exim SMTP Challenge Stack-based Buffer Overflow Remote Code Execution Vulnerability
Summary
Exim SMTP Challenge Stack-based Buffer Overflow Remote Code Execution Vulnerability
Original description
The description as published by the source.
Exim SMTP Challenge Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Exim. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the handling of NTLM challenge requests. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the service account.
. Was ZDI-CAN-17515.
Fix status by distribution
Fixed packages published by each distribution for this CVE
- Debian DEBIAN-CVE-2023-42116 exim4 Fixed in: 4.94.2-7+deb11u1
References
- advisory github.com
- advisory nvd.nist.gov
- advisory zerodayinitiative.com
- web lists.debian.org