#VU80691 Buffer overflow in CommonCryptoLib - CVE-2023-40308

Vulnerability identifier: #VU80691

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-2023-40308

CWE-ID: CWE-119

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
CommonCryptoLib
Universal components / Libraries / Libraries used by multiple products

Vendor: SAP

Description

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

The vulnerability exists due to a boundary error in SAP CommonCryptoLib. A remote non-authenticated attacker can send specially crafted input to the application that uses the affected library, trigger memory corruption and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

CommonCryptoLib: 8

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External links
https://www.sap.com/documents/2022/02/fa865ea4-167e-0010-bca6-c68f7e60039b.html?september2023

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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.