Advisory Details

March 23rd, 2022

(Pwn2Own) Netatalk get_finderinfo Out-Of-Bounds Read Information Disclosure Vulnerability

ZDI-22-525
ZDI-CAN-15870

CVE ID CVE-2022-23124
CVSS SCORE 5.3, AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
AFFECTED VENDORS Netatalk
AFFECTED PRODUCTS Netatalk
VULNERABILITY DETAILS

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 get_finderinfo 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.

ADDITIONAL DETAILS Netatalk has issued an update to correct this vulnerability. More details can be found at:
https://netatalk.sourceforge.io/3.1/ReleaseNotes3.1.13.html
DISCLOSURE TIMELINE
  • 2021-12-08 - Vulnerability reported to vendor
  • 2022-03-23 - Coordinated public release of advisory
CREDIT Theori (@theori_io)
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