CVEvulnerability

CVE-2017-16030

7.5 HIGH Published 2018-06-04 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2018-06-04
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.0 ([email protected])
7.5 HIGH — CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0 ([email protected])
5.0 MEDIUM — AV:N/AC:L/Au:N/C:N/I:N/A:P
Weaknesses
CWE-400

Description

Useragent is used to parse useragent headers. It uses several regular expressions to accomplish this. An attacker could edit their own headers, creating an arbitrarily long useragent string, causing the event loop and server to block. This affects Useragent 2.1.12 and earlier.

Affected configurations

• useragent project useragent (<= 2.1.12)

Related

Weakness · CWE (1)

  • CWE-400 Uncontrolled Resource Consumption weakness

References