Denial of service in cbor2

1) Buffer overflow

EUVDB-ID: #VU88219

Risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-26134

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

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

The vulnerability exists due to a boundary error when parsing CBOR binaries. A remote attacker can pass a specially crafted binary file to the application and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

CBOR2: 5.5.1 - 5.6.0

External links

http://github.com/agronholm/cbor2/security/advisories/GHSA-375g-39jq-vq7m
http://github.com/agronholm/cbor2/pull/204
http://github.com/agronholm/cbor2/commit/387755eacf0be35591a478d3c67fe10618a6d542
http://github.com/agronholm/cbor2/commit/4de6991ba29bf2290d7b9d83525eda7d021873df
http://github.com/agronholm/cbor2/releases/tag/5.6.2

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.