Denial of service in Next.js

1) Resource exhaustion

EUVDB-ID: #VU77518

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-43803

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

Description

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

The vulnerability exists due to application does not properly control consumption of internal resources. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Next.js: 11.0.0 - 12.0.4

CPE2.3

• cpe:2.3:a:zeit:nextjs:11.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:zeit:nextjs:11.1.2:*:*:*:*:*:*:*
• cpe:2.3:a:zeit:nextjs:12.0.4:*:*:*:*:*:*:*

External links

https://github.com/vercel/next.js/releases/v12.0.5
https://github.com/vercel/next.js/pull/32080
https://github.com/vercel/next.js/releases/tag/v11.1.3
https://github.com/vercel/next.js/commit/6d98b4fb4315dec1badecf0e9bdc212a4272b264
https://github.com/vercel/next.js/security/advisories/GHSA-25mp-g6fv-mqxx

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.