CVE-2023-42117
Publication date 28 September 2023
Last updated 24 July 2024
Ubuntu priority
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.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| exim4 | ||
| 22.04 LTS jammy |
Fixed 4.95-4ubuntu2.4
|
|
| 20.04 LTS focal |
Fixed 4.93-13ubuntu1.9
|
|
| 18.04 LTS bionic |
Fixed 4.90.1-1ubuntu1.10+esm2
|
|
| 16.04 LTS xenial |
Fixed 4.86.2-2ubuntu2.6+esm5
|
|
| 14.04 LTS trusty |
Fixed 4.82-3ubuntu2.4+esm7
|
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References
Related Ubuntu Security Notices (USN)
- USN-6455-1
- Exim vulnerabilities
- 26 October 2023