CVE-2023-42115

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

State
Published
Severity
9.8 Critical
Published
May 3, 2024
Updated
Sep 20, 2024
Reserved
Sep 6, 2023

Read the record on cve.org

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.

Scores

CVSSScoreVectorSource
3.09.8 CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hzdi

Weaknesses

Affected Products

ProductVersions
EximExim
  • exim 4.95Affected

References

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