CVEvulnerability

CVE-2018-1000027

7.5 HIGH Published 2018-02-09 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2018-02-09
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-476

Description

The Squid Software Foundation Squid HTTP Caching Proxy version prior to version 4.0.23 contains a NULL Pointer Dereference vulnerability in HTTP Response X-Forwarded-For header processing that can result in Denial of Service to all clients of the proxy. This attack appear to be exploitable via Remote HTTP server responding with an X-Forwarded-For header to certain types of HTTP request. This vulnerability appears to have been fixed in 4.0.23 and later.

Affected configurations

• squid-cache squid (< 4.0.23) • debian debian linux 7.0 • debian debian linux 8.0 • debian debian linux 9.0 • canonical ubuntu linux 14.04 • canonical ubuntu linux 16.04 • canonical ubuntu linux 17.10

Related

Weakness · CWE (1)

  • CWE-476 NULL Pointer Dereference weakness

References