CVEvulnerability

CVE-2018-19791

6.5 MEDIUM Published 2018-12-03 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2018-12-03
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.0 ([email protected])
6.5 MEDIUM — CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0 ([email protected])
4.0 MEDIUM — AV:N/AC:L/Au:S/C:N/I:N/A:P
Weaknesses
CWE-20

Description

The server in LiteSpeed OpenLiteSpeed before 1.5.0 RC6 does not correctly handle requests for byte sequences, allowing an attacker to amplify the response size by requesting the entire response body repeatedly, as demonstrated by an HTTP Range header value beginning with the "bytes=0-,0-" substring.

Affected configurations

• litespeedtech openlitespeed (< 1.5.0) • litespeedtech openlitespeed 1.5.0

Related

Weakness · CWE (1)

  • CWE-20 Improper Input Validation weakness

References