Bug 2241528 (CVE-2023-42116)
| Summary: | CVE-2023-42116 Exim: SMTP Challenge Stack-based Buffer Overflow Remote Code Execution Vulnerability | ||
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| Product: | [Other] Security Response | Reporter: | Nick Tait <ntait> |
| Component: | vulnerability | Assignee: | Product Security <prodsec-ir-bot> |
| Status: | NEW --- | QA Contact: | |
| Severity: | high | Docs Contact: | |
| Priority: | high | ||
| Version: | unspecified | Keywords: | Security |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | If docs needed, set a value | |
| Doc Text: |
The vulnerability was found in Exim 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. Authentication is not required to exploit this vulnerability.
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Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | Type: | --- | |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | 2241529, 2241530 | ||
| Bug Blocks: | 2241518 | ||
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Description
Nick Tait
2023-09-30 17:43:18 UTC
Created exim tracking bugs for this issue: Affects: epel-all [bug 2241530] Affects: fedora-all [bug 2241529] |