USN-6411-1: Exim vulnerabilities
It was discovered that Exim incorrectly handled certain challenge requests. A remote attacker could possibly use this issue to perform out-of-bounds reads, resulting in information leakage. (CVE-2023-42114) It was discovered that Exim incorrectly handled validation of user-supplied data. A remote attacker could possibly use this issue to perform out-of-bounds writes, resulting in arbitrary code execution. This issue only affected Ubuntu 20.04 LTS, Ubuntu 22.04 LTS and Ubuntu 23.04. (CVE-2023-42115) It was discovered that Exim incorrectly handled certain challenge requests. A remote attacker could possibly use this issue to perform out-of-bounds writes, resulting in arbitrary code execution. (CVE-2023-42116)
Affected Software
Event History
Child vulnerabilities
Contains the following vulnerabilities.
Frequently Asked Questions
What is the vulnerability ID for this Exim vulnerability?
The vulnerability ID for this Exim vulnerability is CVE-2023-42114.
What is the severity of CVE-2023-42114?
The severity of CVE-2023-42114 is not specified in the provided information. Please refer to the references for more details.
How does CVE-2023-42114 affect Exim4?
CVE-2023-42114 affects Exim4 versions 4.96-14ubuntu1.2 and earlier.
What is the remedy for CVE-2023-42114 in Ubuntu 23.04?
The remedy for CVE-2023-42114 in Ubuntu 23.04 is to update the Exim4 packages to version 4.96-14ubuntu1.2 or later.