#VU75582 Integer underflow in RIOT-OS - CVE-2023-24821


Vulnerability identifier: #VU75582

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-2023-24821

CWE-ID: CWE-191

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 integer underflow during defragmentation. A remote attacker can send a specially crafted request to the affected application, trigger integer underflow and cause a denial of service condition on the target system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

RIOT-OS: 2013.08 - 2022.07


External links
http://github.com/RIOT-OS/RIOT/pull/18820/commits/bd31010231f5340e21410595dd95afc86bbfd341
http://github.com/RIOT-OS/RIOT/pull/18817/commits/9728f727e75d7d78dbfb5918e0de1b938b7b6d2c
http://github.com/RIOT-OS/RIOT/security/advisories/GHSA-2fpr-82xr-p887


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.


Latest bulletins with this vulnerability