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CVE-2018-1000027

Status Candidate

Overview

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.

Related Files

Ubuntu Security Notice USN-5771-1
Posted Dec 12, 2022
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5771-1 - USN-3557-1 fixed vulnerabilities in Squid. This update introduced a regression which could cause the cache log to be filled with many Vary loop messages. This update fixes the problem. Mathias Fischer discovered that Squid incorrectly handled certain long strings in headers. A malicious remote server could possibly cause Squid to crash, resulting in a denial of service. This issue was only addressed in Ubuntu 16.04 LTS.

tags | advisory, remote, denial of service, vulnerability
systems | linux, ubuntu
advisories | CVE-2016-2569, CVE-2016-2570, CVE-2016-2571, CVE-2016-3948, CVE-2018-1000024, CVE-2018-1000027
SHA-256 | 18a8aac17d2340eed70314b685221fc08c8fa291d4e28e008072aa320c633084
Red Hat Security Advisory 2020-1068-01
Posted Apr 1, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-1068-01 - Squid is a high-performance proxy caching server for web clients, supporting FTP, Gopher, and HTTP data objects. Issues addressed include cross site scripting and denial of service vulnerabilities.

tags | advisory, web, denial of service, vulnerability, xss
systems | linux, redhat
advisories | CVE-2018-1000024, CVE-2018-1000027, CVE-2019-13345
SHA-256 | e491a1a292c8d9aa0c989b6e9a177155c755cf4c0c61cd16efdd623077aa2183
Ubuntu Security Notice USN-4059-2
Posted Jul 17, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4059-2 - USN-4059-1 and USN-3557-1 fixed several vulnerabilities in Squid. This update provides the corresponding update for Ubuntu 12.04 ESM. Louis Dion-Marcil discovered that Squid incorrectly handled certain Edge Side Includes responses. A malicious remote server could possibly cause Squid to crash, resulting in a denial of service. Various other issues were also addressed.

tags | advisory, remote, denial of service, vulnerability
systems | linux, ubuntu
advisories | CVE-2018-1000024, CVE-2018-1000027, CVE-2019-13345
SHA-256 | 72713635f73dbb5ee46e370a259adb5cd7db856b32b484218c1f0fcbe36e3a1c
Debian Security Advisory 4122-1
Posted Feb 23, 2018
Authored by Debian | Site debian.org

Debian Linux Security Advisory 4122-1 - Several vulnerabilities have been discovered in Squid3, a fully featured web proxy cache.

tags | advisory, web, vulnerability
systems | linux, debian
advisories | CVE-2018-1000024, CVE-2018-1000027
SHA-256 | 413a77af9890c71c08bf0762f9364b899f3ba82b45ae04876760d0ea2af27ee3
Ubuntu Security Notice USN-3557-1
Posted Feb 5, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3557-1 - Mathias Fischer discovered that Squid incorrectly handled certain long strings in headers. A malicious remote server could possibly cause Squid to crash, resulting in a denial of service. This issue was only addressed in Ubuntu 16.04 LTS. William Lima discovered that Squid incorrectly handled XML parsing when processing Edge Side Includes. A malicious remote server could possibly cause Squid to crash, resulting in a denial of service. This issue was only addressed in Ubuntu 16.04 LTS. Various other issues were also addressed.

tags | advisory, remote, denial of service
systems | linux, ubuntu
advisories | CVE-2016-2569, CVE-2016-2570, CVE-2016-2571, CVE-2016-3948, CVE-2018-1000024, CVE-2018-1000027
SHA-256 | b169b09181988235b7219070211a4eb39cb8db8a12d583c3e7373490239320ac
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