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Vulnerability DatabaseCVE-2023-29323
CVE-2023-29323:
NixOS vulnerability analysis and mitigation
Overview
CVE-2023-29323 affects the asciiloadsockaddr function in smtpd in OpenBSD before 7.1 errata 024 and 7.2 before errata 020, and OpenSMTPD Portable before 7.0.0-portable commit f748277. The vulnerability can cause the system to abort when receiving a connection from a local, scoped IPv6 address (NVD).
Technical details
The vulnerability has been assigned a CVSS v3.1 Base Score of 7.8 (HIGH) with the vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. The issue stems from improper handling of IPv6 addresses in the asciiloadsockaddr function, specifically when processing scoped IPv6 addresses (NetApp Advisory).
Impact
Successful exploitation of this vulnerability could lead to disclosure of sensitive information, addition or modification of data, or Denial of Service (DoS) (NetApp Advisory).
Mitigation and workarounds
Patches have been released to address this vulnerability. OpenBSD users should update to version 7.1 errata 024 or 7.2 errata 020, while OpenSMTPD Portable users should update to version 7.0.0-portable or later with commit f748277 (OpenBSD Patch, OpenBSD Patch).
Additional resources
Source: This report was generated using AI
Related NixOS vulnerabilities:
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