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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

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
MD5 | acdf2f79d6ae904d7b58f0c02701f595
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
MD5 | d94434b55f2ed5a67ffc830571769e16
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
MD5 | 9ef4b3729b02dbd49c78b7e5631e5ef4
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
MD5 | 25c1bdc970b03d48bda07647da4cf61c
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