CVE-2022-23123 : netatalk - getdirparams Out-Of-Bounds Read Information Disclosure

Versions Affected : All versions prior to TrueNAS Core 12.0-U8.1 To verify if a system isvulnerable, run afpd -v. Systems with a version string that is not 3.1.13 or newer are vulnerable.


Description

This vulnerability allows remote attackers to disclose sensitive information on affected installations of Netatalk. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the getdirparams method. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of root.

CVSS

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Base score 5.3

Workaround

No workarounds available


Mitigation

  • Disable affected AFP shares until upgrade is possible
  • Upgrade to TrueNAS 12.0-U8.1

Commit

Further information

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