Exim Improper Neutralization of Special Elements Remote Code Execution Vulnerability
Summary
Exim Improper Neutralization of Special Elements Remote Code Execution Vulnerability
Original description
The description as published by the source.
Exim Improper Neutralization of Special Elements 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 smtp service, which listens on TCP port 25 by default. The issue results from the lack of proper validation of user-supplied data, which can result in a memory corruption condition. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-17554.
Fix status by distribution
Fixed packages published by each distribution for this CVE
- Debian DEBIAN-CVE-2023-42117 exim4 Fixed in: 4.94.2-7+deb11u4
- Ubuntu UBUNTU-CVE-2023-42117 exim4 Fixed in: 4.82-3ubuntu2.4+esm7
References
- advisory github.com
- advisory nvd.nist.gov
- advisory zerodayinitiative.com
- web lists.debian.org