#VU68495 Out-of-bounds read in nginx


Published: 2022-10-19

Vulnerability identifier: #VU68495

Vulnerability risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-41742

CWE-ID: CWE-125

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
nginx
Server applications / Web servers

Vendor: NGINX

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information or perform a denial of service attack.

The vulnerability exists due to a boundary condition within the ngx_http_mp4_module module when handling MP4 files. A remote attacker can pass a specially crafted file to the server, trigger an out-of-bounds read error and read contents of memory on the system or perform a denial of service attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

nginx: 1.23.0 - 1.23.1, 1.22.0, 1.21.0 - 1.21.6, 1.20.0 - 1.20.2, 1.19.0 - 1.19.10, 1.18.0, 1.17.0 - 1.17.10, 1.16.0 - 1.16.1, 1.15.0 - 1.15.12, 1.14.0 - 1.14.2, 1.12.0 - 1.12.2, 1.11.0 - 1.11.13, 1.13.0 - 1.13.12, 1.10.0 - 1.10.3, 1.1.3 - 1.1.19, 1.0.7 - 1.0.15


External links
http://mailman.nginx.org/archives/list/nginx-announce@nginx.org/message/RBRRON6PYBJJM2XIAPQBFBVLR4Q6IHRA/


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.


Latest bulletins with this vulnerability