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THREATINT
PUBLISHED

CVE-2023-42115

Exim AUTH Out-Of-Bounds Write Remote Code Execution Vulnerability



Description

Exim AUTH Out-Of-Bounds Write 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 write past the end of a buffer. An attacker can leverage this vulnerability to execute code in the context of the service account. . Was ZDI-CAN-17434.

Reserved 2023-09-06 | Published 2024-05-03 | Updated 2024-09-20 | Assigner zdi


CRITICAL: 9.8CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Problem types

CWE-787: Out-of-bounds Write

Product status

Default status
unknown

exim 4.95
affected

References

www.zerodayinitiative.com/advisories/ZDI-23-1469/ (ZDI-23-1469)

cve.org (CVE-2023-42115)

nvd.nist.gov (CVE-2023-42115)

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