#VU75585 NULL pointer dereference in RIOT-OS - CVE-2023-24818

Vulnerability identifier: #VU75585

Vulnerability risk: Medium

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

CVE-ID: CVE-2023-24818

CWE-ID: CWE-476

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
RIOT-OS
Operating systems & Components / Operating system

Vendor: RIOT-OS

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error during fragment forwarding. A remote attacker can pass specially crafted data to the application and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

RIOT-OS: 2013.08 - 2022.07

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External links
http://github.com/RIOT-OS/RIOT/security/advisories/GHSA-69h9-vj5r-xcg6
http://github.com/RIOT-OS/RIOT/pull/18817/commits/0bec3e245ed3815ad6c8cae54673f0021777768b
http://github.com/RIOT-OS/RIOT/pull/18820/commits/f4fb746d1acaacc962daeed3aa71aadfe307d20e
http://github.com/RIOT-OS/RIOT/pull/18817/commits/17c70f7ee0b1445f2941f516f264ed4a096e82b7
http://github.com/RIOT-OS/RIOT/pull/18817/commits/aa27ed71fa3e5d48dee1748dcf27b6323ec98a33
http://github.com/RIOT-OS/RIOT/pull/18820/commits/4b23d93868a28edd8ebf2ff4ebe94540f2475008
http://github.com/RIOT-OS/RIOT/pull/18820/commits/f4df5b4c4f841ccb460930894cf68ab10b55b971

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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.