Out-of-Bounds Array Access in NGINX's NJS Product by NGINX
CVE-2021-46461

9.8CRITICAL

Key Information:

Vendor

Nginx

Status
Njs
Vendor
CVE Published:
14 February 2022

What is CVE-2021-46461?

The NJS component, utilized by NGINX, is susceptible to an out-of-bounds array access due to a flaw in the njs_vmcode_typeof function within the /src/njs_vmcode.c file. This vulnerability can be exploited by attackers to potentially manipulate memory access, which may lead to undefined behavior in the application.

References

https://github.com/nginx/njs/issues/450
x_refsource_MISC
https://github.com/nginx/njs/commit/d457c9545e7e71ebb5c04...
x_refsource_MISC
https://security.netapp.com/advisory/ntap-20220303-0007/
x_refsource_CONFIRM

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.