#VU80842 Type Confusion in Netatalk - CVE-2023-42464

Vulnerability identifier: #VU80842

Vulnerability risk: High

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2023-42464

CWE-ID: CWE-843

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Netatalk
Server applications / File servers (FTP/HTTP)

Vendor: Netatalk

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a type confusion error within the dalloc_value_for_key() function when parsing Spotlight RPC packets. A remote attacker can send specially crafted Spotlight RPC packets to the application, trigger a type confusion error and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Netatalk: 3.0 - 3.1.16

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External links
https://github.com/Netatalk/Netatalk/releases/tag/netatalk-3-1-17
https://github.com/Netatalk/netatalk/issues/486

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.