high
7.5
CWE
400
Advisory Published
Advisory Published
Updated

CVE-2018-12121

First published: Wed Nov 28 2018(Updated: )

A flaw was found in Node.js versions before 6.15.0, 8.14.0, 10.14.0 and 11.3.0. A 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. References: <a href="https://nodejs.org/en/blog/vulnerability/november-2018-security-releases/">https://nodejs.org/en/blog/vulnerability/november-2018-security-releases/</a>

Credit: cve-request@iojs.org cve-request@iojs.org

Affected SoftwareAffected VersionHow to fix
redhat/nodejs<6.15.0
6.15.0
redhat/nodejs<8.14.0
8.14.0
redhat/nodejs<10.14.0
10.14.0
redhat/nodejs<11.3.0
11.3.0
F5 BIG-IP and BIG-IQ Centralized Management>=17.1.0<=17.1.2
F5 BIG-IP and BIG-IQ Centralized Management>=16.1.0<=16.1.5
F5 BIG-IP and BIG-IQ Centralized Management>=15.1.0<=15.1.10
F5 BIG-IP and BIG-IQ Centralized Management>=14.1.0<=14.1.5
F5 BIG-IP and BIG-IQ Centralized Management>=13.1.0<=13.1.5
F5 BIG-IP and BIG-IQ Centralized Management>=8.0.0<=8.3.0
Node.js>=6.0.0<6.15.0
Node.js>=8.0.0<8.14.0
Node.js>=10.0.0<10.14.0
Node.js>=11.0.0<11.3.0
Red Hat Enterprise Linux=8.0
Red Hat Enterprise Linux Desktop=7.0
Red Hat Enterprise Linux Server EUS=8.1
Red Hat Enterprise Linux Server EUS=8.2
Red Hat Enterprise Linux Server EUS=8.4
Red Hat Enterprise Linux Server EUS=8.6
Red Hat Enterprise Linux Server=7.0
Red Hat Enterprise Linux Server=8.2
Red Hat Enterprise Linux Server=8.4
Red Hat Enterprise Linux Server=8.6
Red Hat Enterprise Linux Server=8.2
Red Hat Enterprise Linux Server=8.4
Red Hat Enterprise Linux Server=8.6
Red Hat Enterprise Linux Workstation=7.0
npm at-least-node>=6.0.0<6.15.0
npm at-least-node>=8.0.0<8.14.0
npm at-least-node>=10.0.0<10.14.0
npm at-least-node>=11.0.0<11.3.0

Remedy

https://nodejs.org/en/blog/vulnerability/november-2018-security-releases/

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2018-12121?

    CVE-2018-12121 has been rated as a medium severity vulnerability due to its potential to cause a Denial of Service condition.

  • How do I fix CVE-2018-12121?

    To fix CVE-2018-12121, upgrade Node.js to version 6.15.0, 8.14.0, 10.14.0, or 11.3.0 or apply patches provided by your vendor.

  • Which versions of Node.js are affected by CVE-2018-12121?

    Node.js versions prior to 6.15.0, 8.14.0, 10.14.0, and 11.3.0 are affected by CVE-2018-12121.

  • What are the potential impacts of CVE-2018-12121?

    CVE-2018-12121 could lead to a Denial of Service attack by exploiting large HTTP headers.

  • Is CVE-2018-12121 exploitable remotely?

    Yes, CVE-2018-12121 can be exploited remotely through crafted HTTP requests.

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