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CVE-2016-4556

Status Candidate

Overview

Double free vulnerability in Esi.cc in Squid 3.x before 3.5.18 and 4.x before 4.0.10 allows remote servers to cause a denial of service (crash) via a crafted Edge Side Includes (ESI) response.

Related Files

Debian Security Advisory 3625-1
Posted Jul 22, 2016
Authored by Debian | Site debian.org

Debian Linux Security Advisory 3625-1 - Several security issues have been discovered in the Squid caching proxy.

tags | advisory
systems | linux, debian
advisories | CVE-2016-4051, CVE-2016-4052, CVE-2016-4053, CVE-2016-4054, CVE-2016-4554, CVE-2016-4555, CVE-2016-4556
SHA-256 | 22d0c205cb033a2148166187d7a118d29d9dcc6295325cc3e1f28d5ff805791d
Gentoo Linux Security Advisory 201607-01
Posted Jul 8, 2016
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 201607-1 - Multiple vulnerabilities have been found in Squid, the worst of which could lead to arbitrary code execution, or cause a Denial of Service condition. Versions less than 3.5.19 are affected.

tags | advisory, denial of service, arbitrary, vulnerability, code execution
systems | linux, gentoo
advisories | CVE-2014-6270, CVE-2016-2569, CVE-2016-2570, CVE-2016-2571, CVE-2016-2572, CVE-2016-3947, CVE-2016-3948, CVE-2016-4051, CVE-2016-4052, CVE-2016-4053, CVE-2016-4054, CVE-2016-4553, CVE-2016-4554, CVE-2016-4555, CVE-2016-4556
SHA-256 | f3ed5792a89c6aee3d29169c951a32dfbcc2492998847681a69bf92922eb71d4
Ubuntu Security Notice USN-2995-1
Posted Jun 9, 2016
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2995-1 - Yuriy M. Kaminskiy discovered that the Squid pinger utility incorrectly handled certain ICMPv6 packets. A remote attacker could use this issue to cause Squid to crash, resulting in a denial of service, or possibly cause Squid to leak information into log files. Yuriy M. Kaminskiy discovered that the Squid cachemgr.cgi tool incorrectly handled certain crafted data. A remote attacker could use this issue to cause Squid to crash, resulting in a denial of service, or possibly execute arbitrary code. Various other issues were also addressed.

tags | advisory, remote, denial of service, arbitrary, cgi
systems | linux, ubuntu
advisories | CVE-2016-3947, CVE-2016-4051, CVE-2016-4052, CVE-2016-4053, CVE-2016-4054, CVE-2016-4553, CVE-2016-4554, CVE-2016-4555, CVE-2016-4556
SHA-256 | 19d45016c93c515ab0067629562c37bd5711e3322bb091870d52f61616af52a2
Red Hat Security Advisory 2016-1140-01
Posted May 31, 2016
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2016-1140-01 - The "squid34" packages provide version 3.4 of Squid, a high-performance proxy caching server for web clients, supporting FTP, Gopher, and HTTP data objects. Note that apart from "squid34", this version of Red Hat Enterprise Linux also includes the "squid" packages which provide Squid version 3.1. Security Fix: A buffer overflow flaw was found in the way the Squid cachemgr.cgi utility processed remotely relayed Squid input. When the CGI interface utility is used, a remote attacker could possibly use this flaw to execute arbitrary code.

tags | advisory, remote, web, overflow, arbitrary, cgi
systems | linux, redhat
advisories | CVE-2016-4051, CVE-2016-4052, CVE-2016-4053, CVE-2016-4054, CVE-2016-4553, CVE-2016-4554, CVE-2016-4555, CVE-2016-4556
SHA-256 | 4ddd25072f9b7bdc9d460f29a486fcdf22fc646b8001810de74d8404286f2dfb
Red Hat Security Advisory 2016-1139-01
Posted May 31, 2016
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2016-1139-01 - Squid is a high-performance proxy caching server for web clients, supporting FTP, Gopher, and HTTP data objects. Security Fix: A buffer overflow flaw was found in the way the Squid cachemgr.cgi utility processed remotely relayed Squid input. When the CGI interface utility is used, a remote attacker could possibly use this flaw to execute arbitrary code. Buffer overflow and input validation flaws were found in the way Squid processed ESI responses. If Squid was used as a reverse proxy, or for TLS/HTTPS interception, a remote attacker able to control ESI components on an HTTP server could use these flaws to crash Squid, disclose parts of the stack memory, or possibly execute arbitrary code as the user running Squid.

tags | advisory, remote, web, overflow, arbitrary, cgi
systems | linux, redhat
advisories | CVE-2016-4051, CVE-2016-4052, CVE-2016-4053, CVE-2016-4054, CVE-2016-4553, CVE-2016-4554, CVE-2016-4555, CVE-2016-4556
SHA-256 | 68a695fb82d9a9d930f969e15232aa6c79c5983c8c4aadcb320c3f086f496e89
Red Hat Security Advisory 2016-1138-01
Posted May 31, 2016
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2016-1138-01 - Squid is a high-performance proxy caching server for web clients, supporting FTP, Gopher, and HTTP data objects. Security Fix: A buffer overflow flaw was found in the way the Squid cachemgr.cgi utility processed remotely relayed Squid input. When the CGI interface utility is used, a remote attacker could possibly use this flaw to execute arbitrary code. Buffer overflow and input validation flaws were found in the way Squid processed ESI responses. If Squid was used as a reverse proxy, or for TLS/HTTPS interception, a remote attacker able to control ESI components on an HTTP server could use these flaws to crash Squid, disclose parts of the stack memory, or possibly execute arbitrary code as the user running Squid.

tags | advisory, remote, web, overflow, arbitrary, cgi
systems | linux, redhat
advisories | CVE-2016-4051, CVE-2016-4052, CVE-2016-4053, CVE-2016-4054, CVE-2016-4554, CVE-2016-4556
SHA-256 | 1b45107a7d5870831ac496e28e1912accc9d20214d4ac341cdeaae582ad76b51
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