- Vulnerability/
- USN-6455-1
USN-6455-1: Exim vulnerabilities
First published: Thu Oct 26 2023(Updated: )
It was discovered that Exim incorrectly handled validation of user-supplied data, which could lead to memory corruption. A remote attacker could possibly use this issue to execute arbitrary code. (CVE-2023-42117) It was discovered that Exim incorrectly handled validation of user-supplied data, which could lead to an out-of-bounds read. An attacker could possibly use this issue to expose sensitive information. (CVE-2023-42119)
| Affected Software | Affected Version | How to fix |
|---|---|---|
| All of | ||
| ubuntu/exim4-daemon-heavy | <4.96-17ubuntu2.1 | 4.96-17ubuntu2.1 |
| =23.10 | ||
| All of | ||
| ubuntu/exim4-daemon-light | <4.96-17ubuntu2.1 | 4.96-17ubuntu2.1 |
| =23.10 | ||
| All of | ||
| ubuntu/exim4-daemon-heavy | <4.96-14ubuntu1.3 | 4.96-14ubuntu1.3 |
| =23.04 | ||
| All of | ||
| ubuntu/exim4-daemon-light | <4.96-14ubuntu1.3 | 4.96-14ubuntu1.3 |
| =23.04 | ||
| All of | ||
| ubuntu/exim4-daemon-heavy | <4.95-4ubuntu2.4 | 4.95-4ubuntu2.4 |
| =22.04 | ||
| All of | ||
| ubuntu/exim4-daemon-light | <4.95-4ubuntu2.4 | 4.95-4ubuntu2.4 |
| =22.04 | ||
| All of | ||
| ubuntu/exim4-daemon-heavy | <4.93-13ubuntu1.9 | 4.93-13ubuntu1.9 |
| =20.04 | ||
| All of | ||
| ubuntu/exim4-daemon-light | <4.93-13ubuntu1.9 | 4.93-13ubuntu1.9 |
| =20.04 | ||
| All of | ||
| ubuntu/exim4-daemon-heavy | <4.90.1-1ubuntu1.10+esm2 | 4.90.1-1ubuntu1.10+esm2 |
| =18.04 | ||
| All of | ||
| ubuntu/exim4-daemon-light | <4.90.1-1ubuntu1.10+esm2 | 4.90.1-1ubuntu1.10+esm2 |
| =18.04 | ||
| All of | ||
| ubuntu/exim4-daemon-heavy | <4.86.2-2ubuntu2.6+esm5 | 4.86.2-2ubuntu2.6+esm5 |
| =16.04 | ||
| All of | ||
| ubuntu/exim4-daemon-light | <4.86.2-2ubuntu2.6+esm5 | 4.86.2-2ubuntu2.6+esm5 |
| =16.04 | ||
| All of | ||
| ubuntu/exim4-daemon-heavy | <4.82-3ubuntu2.4+esm7 | 4.82-3ubuntu2.4+esm7 |
| =14.04 | ||
| All of | ||
| ubuntu/exim4-daemon-light | <4.82-3ubuntu2.4+esm7 | 4.82-3ubuntu2.4+esm7 |
| =14.04 |
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Reference Links
- https://ubuntu.com/security/CVE-2023-42117
- https://ubuntu.com/security/CVE-2023-42119
- https://launchpad.net/ubuntu/+source/exim4/4.96-17ubuntu2.1
- https://launchpad.net/ubuntu/+source/exim4/4.96-14ubuntu1.3
- https://launchpad.net/ubuntu/+source/exim4/4.95-4ubuntu2.4
- https://launchpad.net/ubuntu/+source/exim4/4.93-13ubuntu1.9
- https://ubuntu.com/security/notices/USN-6455-1 (Advisory)
Frequently Asked Questions
What is the vulnerability ID for this advisory?
CVE-2023-42117
What is the affected version of Exim?
4.96-17ubuntu2.1
Can the vulnerability lead to arbitrary code execution?
Yes, a remote attacker could possibly use this issue to execute arbitrary code.
What is the remediation for this vulnerability on Ubuntu 23.10?
Upgrade the exim4-daemon-heavy package to version 4.96-17ubuntu2.1.
Where can I find more information about this vulnerability?
You can find more information about this vulnerability at the [Ubuntu Security Advisory](https://ubuntu.com/security/CVE-2023-42117).
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