Denial of service in OpenSSL



| Updated: 2024-04-08
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2024-0727
CWE-ID CWE-476
Exploitation vector Network
Public exploit N/A
Vulnerable software
OpenSSL
Server applications / Encryption software

Vendor OpenSSL Software Foundation

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) NULL pointer dereference

EUVDB-ID: #VU85808

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-0727

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

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

The vulnerability exists due to a NULL pointer dereference error when processing fields in the PKCS12 certificate. A remote attacker can pass specially crafted certificate to the server and perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

OpenSSL: 1.0.2h - 3.2.0

CPE2.3 External links

http://www.openssl.org/news/secadv/20240125.txt


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.



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