Multiple vulnerabilities in nginx and NGINX Plus

Published: 2024-02-16

Risk	Medium
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2024-24989 CVE-2024-24990
CWE-ID	CWE-476 CWE-416
Exploitation vector	Network
Public exploit	N/A
Vulnerable software	nginx Server applications / Web servers NGINX Plus Server applications / Web servers
Vendor	NGINX F5 Networks

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) NULL pointer dereference

EUVDB-ID: #VU86558

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-2024-24989

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 within the HTTP/3 QUIC experimental module. A remote attacker can send specially crafted requests to the web server and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

nginx: 1.25.3

NGINX Plus: R31

CPE2.3

External links

http://my.f5.com/manage/s/article/K000138444

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Use-after-free

EUVDB-ID: #VU86557