CVE-2023-42116 Affecting exim package, versions <4.96.1-r0
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-ALPINE320-EXIM-7009402
- published23 May 2024
- disclosed3 May 2024
Introduced: 3 May 2024
CVE-2023-42116 (opens in a new tab)How to fix?
Upgrade Alpine:3.20 exim to version 4.96.1-r0 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream exim package and not the exim package as distributed by Alpine.
See How to fix? for Alpine:3.20 relevant fixed versions and status.
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.