Executive Summary

Summary
Title squid security and bug fix update
Informations
Name RHSA-2011:0545 First vendor Publication 2011-05-19
Vendor RedHat Last vendor Modification 2011-05-19
Severity (Vendor) Low Revision 01

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:N/I:N/A:P)
Cvss Base Score 5 Attack Range Network
Cvss Impact Score 2.9 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

Problem Description:

An updated squid package that fixes one security issue and two bugs is now available for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team has rated this update as having low security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.

2. Relevant releases/architectures:

Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64 Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64

3. Description:

Squid is a high-performance proxy caching server for web clients, supporting FTP, Gopher, and HTTP data objects.

It was found that string comparison functions in Squid did not properly handle the comparisons of NULL and empty strings. A remote, trusted web client could use this flaw to cause the squid daemon to crash via a specially-crafted request. (CVE-2010-3072)

This update also fixes the following bugs:

* A small memory leak in Squid caused multiple "ctx: enter level" messages to be logged to "/var/log/squid/cache.log". This update resolves the memory leak. (BZ#666533)

* This erratum upgrades Squid to upstream version 3.1.10. This upgraded version supports the Google Instant service and introduces various code improvements. (BZ#639365)

Users of squid should upgrade to this updated package, which resolves these issues. After installing this update, the squid service will be restarted automatically.

4. Solution:

Before applying this update, make sure all previously-released errata relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259

5. Bugs fixed (http://bugzilla.redhat.com/):

630444 - CVE-2010-3072 Squid: Denial of service due internal error in string handling (SQUID-2010:3) 639365 - Rebase squid to version 3.1.10 666533 - small memleak in squid-3.1.4

Original Source

Url : https://rhn.redhat.com/errata/RHSA-2011-0545.html

OVAL Definitions

Definition Id: oval:org.mitre.oval:def:12477
 
Oval ID: oval:org.mitre.oval:def:12477
Title: DSA-2111-1 squid3 -- denial of service
Description: Phil Oester discovered that squid3, a fully featured Web Proxy cache, is prone to a denial of service attack via a specially crafted request that includes empty strings. For the stable distribution, this problem has been fixed in version 3.0.STABLE8-3+lenny4. For the testing distribution, this problem will be fixed soon. For the unstable distribution, this problem has been fixed in version 3.1.6-1.1. We recommend that you upgrade your squid3 packages.
Family: unix Class: patch
Reference(s): DSA-2111-1
CVE-2010-3072
Version: 5
Platform(s): Debian GNU/Linux 5.0
Product(s): squid3
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:21760
 
Oval ID: oval:org.mitre.oval:def:21760
Title: RHSA-2011:0545: squid security and bug fix update (Low)
Description: The string-comparison functions in String.cci in Squid 3.x before 3.1.8 and 3.2.x before 3.2.0.2 allow remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a crafted request.
Family: unix Class: patch
Reference(s): RHSA-2011:0545-01
CVE-2010-3072
Version: 4
Platform(s): Red Hat Enterprise Linux 6
Product(s): squid
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:23109
 
Oval ID: oval:org.mitre.oval:def:23109
Title: ELSA-2011:0545: squid security and bug fix update (Low)
Description: The string-comparison functions in String.cci in Squid 3.x before 3.1.8 and 3.2.x before 3.2.0.2 allow remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a crafted request.
Family: unix Class: patch
Reference(s): ELSA-2011:0545-01
CVE-2010-3072
Version: 6
Platform(s): Oracle Linux 6
Product(s): squid
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:28081
 
Oval ID: oval:org.mitre.oval:def:28081
Title: DEPRECATED: ELSA-2011-0545 -- squid security and bug fix update (low)
Description: [3.1.10-1] - Resolves: #639365 - Rebase squid to version 3.1.10 - Resolves: #666533 - small memleak in squid-3.1.4
Family: unix Class: patch
Reference(s): ELSA-2011-0545
CVE-2010-3072
Version: 4
Platform(s): Oracle Linux 6
Product(s): squid
Definition Synopsis:

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 55

OpenVAS Exploits

Date Description
2012-06-06 Name : RedHat Update for squid RHSA-2011:0545-01
File : nvt/gb_RHSA-2011_0545-01_squid.nasl
2012-02-12 Name : Gentoo Security Advisory GLSA 201110-24 (Squid)
File : nvt/glsa_201110_24.nasl
2010-10-10 Name : Debian Security Advisory DSA 2111-1 (squid3)
File : nvt/deb_2111_1.nasl
2010-10-10 Name : FreeBSD Ports: squid
File : nvt/freebsd_squid26.nasl
2010-09-27 Name : Mandriva Update for squid MDVSA-2010:187 (squid)
File : nvt/gb_mandriva_MDVSA_2010_187.nasl
2010-09-07 Name : Squid Proxy String Processing NULL Pointer Dereference Denial Of Service Vuln...
File : nvt/gb_squid_42982.nasl

Open Source Vulnerability Database (OSVDB)

Id Description
67824 Squid String.cci String Comparison Function Crafted Request NULL Dereference DoS

Snort® IPS/IDS

Date Description
2014-01-10 Squid Proxy Expect header null pointer denial of service attempt
RuleID : 19073 - Revision : 10 - Type : SERVER-OTHER

Nessus® Vulnerability Scanner

Date Description
2014-06-13 Name : The remote openSUSE host is missing a security update.
File : suse_11_3_squid3-101014.nasl - Type : ACT_GATHER_INFO
2012-08-01 Name : The remote Scientific Linux host is missing one or more security updates.
File : sl_20110519_squid_on_SL6_x.nasl - Type : ACT_GATHER_INFO
2011-10-27 Name : The remote Gentoo host is missing one or more security-related patches.
File : gentoo_GLSA-201110-24.nasl - Type : ACT_GATHER_INFO
2011-05-20 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2011-0545.nasl - Type : ACT_GATHER_INFO
2010-10-18 Name : The remote openSUSE host is missing a security update.
File : suse_11_1_squid3-101014.nasl - Type : ACT_GATHER_INFO
2010-10-18 Name : The remote openSUSE host is missing a security update.
File : suse_11_2_squid3-101014.nasl - Type : ACT_GATHER_INFO
2010-09-28 Name : The remote proxy server is affected by a denial of service vulnerability.
File : squid_3_1_8.nasl - Type : ACT_GATHER_INFO
2010-09-27 Name : The remote FreeBSD host is missing one or more security-related updates.
File : freebsd_pkg_e4dac715c81811dfa92c0015587e2cc1.nasl - Type : ACT_GATHER_INFO
2010-09-23 Name : The remote Mandriva Linux host is missing one or more security updates.
File : mandriva_MDVSA-2010-187.nasl - Type : ACT_GATHER_INFO
2010-09-20 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-2111.nasl - Type : ACT_GATHER_INFO
2010-09-16 Name : The remote Fedora host is missing a security update.
File : fedora_2010-14222.nasl - Type : ACT_GATHER_INFO
2010-09-16 Name : The remote Fedora host is missing a security update.
File : fedora_2010-14236.nasl - Type : ACT_GATHER_INFO

Alert History

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Date Informations
2014-02-17 11:54:41
  • Multiple Updates