CVE-2018-12121

Description

Node.js: All versions prior to Node.js 6.15.0, 8.14.0, 10.14.0 and 11.3.0: Denial of Service with large HTTP headers: By using a combination of many requests with maximum sized headers (almost 80 KB per connection), and carefully timed completion of the headers, it is possible to cause the HTTP server to abort from heap allocation failure. Attack potential is mitigated by the use of a load balancer or other proxy layer.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 5.80% Top 10%
Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory gentoo.org Vendor Advisory nodejs.org
Affected: The Node.js Project Node.js
Published at:
Updated at:

References

Link Tags
https://nodejs.org/en/blog/vulnerability/november-2018-security-releases/ patch vendor advisory
http://www.securityfocus.com/bid/106043 third party advisory vdb entry
https://access.redhat.com/errata/RHSA-2019:1821 third party advisory vendor advisory
https://access.redhat.com/errata/RHSA-2019:2258 third party advisory vendor advisory
https://access.redhat.com/errata/RHSA-2019:3497 third party advisory vendor advisory
https://security.gentoo.org/glsa/202003-48 third party advisory vendor advisory
https://security.netapp.com/advisory/ntap-20241227-0008/

Frequently Asked Questions

What is the severity of CVE-2018-12121?
CVE-2018-12121 has been scored as a high severity vulnerability.
How to fix CVE-2018-12121?
To fix CVE-2018-12121, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2018-12121 being actively exploited in the wild?
It is possible that CVE-2018-12121 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~6% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2018-12121?
CVE-2018-12121 affects The Node.js Project Node.js.
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