Vulnerability identifier: #VU89624

Vulnerability risk: Low

CVSSv3.1: 3.4 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:U/RC:C]

CVE-ID: CVE-2024-4603

CWE-ID: CWE-399

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
OpenSSL
Server applications / Encryption software

Vendor: OpenSSL Software Foundation

Description

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

The vulnerability exists due to improper management of internal resources within the application when checking DSA keys and parameters. A remote attacker can pass specially crafted data to the application and perform a denial of service (DoS) attack.

Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

OpenSSL: 3.3.0, 3.2.1, 3.1.0 - 3.1.5, 3.0.0 - 3.0.13, 3.2.0

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External links
http://www.openssl.org/news/secadv/20240516.txt
http://github.com/openssl/openssl/commit/3559e868e58005d15c6013a0c1fd832e51c73397
http://github.com/openssl/openssl/commit/9c39b3858091c152f52513c066ff2c5a47969f0d
http://github.com/openssl/openssl/commit/da343d0605c826ef197aceedc67e8e04f065f740
http://github.com/openssl/openssl/commit/53ea06486d296b890d565fb971b2764fcd826e7e

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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.