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CVE-2019-5737

Published: 28 March 2019

In Node.js including 6.x before 6.17.0, 8.x before 8.15.1, 10.x before 10.15.2, and 11.x before 11.10.1, an attacker can cause a Denial of Service (DoS) by establishing an HTTP or HTTPS connection in keep-alive mode and by sending headers very slowly. This keeps the connection and associated resources alive for a long period of time. Potential attacks are mitigated by the use of a load balancer or other proxy layer. This vulnerability is an extension of CVE-2018-12121, addressed in November and impacts all active Node.js release lines including 6.x before 6.17.0, 8.x before 8.15.1, 10.x before 10.15.2, and 11.x before 11.10.1.

From the Ubuntu Security Team

Marco Pracucci discovered that Node.js mishandled HTTP and HTTPS connections. An attacker could use this vulnerability to cause a denial of service.

Priority

Medium

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package Release Status
nodejs
Launchpad, Ubuntu, Debian
cosmic Ignored
(end of life)
disco
Released (10.15.2~dfsg-1)
eoan Not vulnerable
(10.15.2~dfsg-1)
focal Not vulnerable
(10.15.2~dfsg-1)
trusty Not vulnerable
(code not present)
upstream
Released (10.15.2~dfsg-1)
xenial Needed

bionic
Released (8.10.0~dfsg-2ubuntu0.4+esm1)
Available with Ubuntu Pro
groovy Not vulnerable
(10.15.2~dfsg-1)
hirsute Not vulnerable
(10.15.2~dfsg-1)
impish Not vulnerable
(10.15.2~dfsg-1)
jammy Not vulnerable
(10.15.2~dfsg-1)
kinetic Not vulnerable
(10.15.2~dfsg-1)
lunar Not vulnerable
(10.15.2~dfsg-1)
mantic Not vulnerable
(10.15.2~dfsg-1)
Patches:
upstream: https://github.com/nodejs/node/commit/b13b4a9ffb

Severity score breakdown

Parameter Value
Base score 7.5
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H