#VU84778 Input validation error in jwcrypto - CVE-2023-6681

Vulnerability identifier: #VU84778

Vulnerability risk: Medium

CVSSv4.0: 6.6 [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-2023-6681

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
jwcrypto
Other software / Other software solutions

Vendor: latchset

Description

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

The vulnerability exists due to insufficient validation of the p2c header. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

jwcrypto: 0.1.0 - 1.5.0

---

External links
https://github.com/latchset/jwcrypto/releases/tag/v1.5.1
https://github.com/latchset/jwcrypto/pull/336
https://github.com/latchset/jwcrypto/security/advisories/GHSA-cw2r-4p82-qv79

---

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.