Netatalk Security Advisory
- Subject
- Information leak in getdirparams
- CVE ID
- CVE-2022-23123
- Date of Publishing
- 2022/03/21 advisory published retroactively; date is approximate
- Affected Netatalk Versions
- 3.0.0 - 3.1.12
- 1.5.0 - 2.2.6
- Summary
- Lack of validation of user-input data in the getdirparams function allows for reading past of allocated buffer
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.
Patch Availability
Apply the patch with git hash 4a8f6c9 to hotfix your local Netatalk deployment.
Additionally, Netatalk 3.1.13 and 2.2.7 have been released which contains the security patch. Netatalk administrators are advised to upgrade to this version or apply the patch as soon as possible.
CVSS Calculation
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N (5.3)
Workaround
None.
Credits
- Vulnerability found and reported by:
- Orange Tsai (@orange_8361) from DEVCORE Research Team
- Patch developed by:
- Ralph Boehme of the Netatalk and Samba teams
