Executive Summary
| Informations | |||
|---|---|---|---|
| Name | MDVSA-2011:193 | First vendor Publication | 2011-12-27 |
| Vendor | Mandriva | Last vendor Modification | 2011-12-27 |
| Severity (Vendor) | N/A | Revision | N/A |
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
| A vulnerability has been discovered and corrected in squid: The idnsGrokReply function in Squid before 3.1.16 does not properly free memory, which allows remote attackers to cause a denial of service (daemon abort) via a DNS reply containing a CNAME record that references another CNAME record that contains an empty A record (CVE-2011-4096). The updated packages have been patched to correct this issue. |
Original Source
| Url : http://www.mandriva.com/security/advisories?name=MDVSA-2011:193 |
CWE : Common Weakness Enumeration
| % | Id | Name |
|---|---|---|
| 100 % | CWE-399 | Resource Management Errors |
OVAL Definitions
| Definition Id: oval:org.mitre.oval:def:15315 | |||
| Oval ID: | oval:org.mitre.oval:def:15315 | ||
| Title: | DSA-2381-1 squid3 -- invalid memory deallocation | ||
| Description: | It was discovered that the IPv6 support code in Squid does not properly handle certain DNS responses, resulting in deallocation of an invalid pointer and a daemon crash. The squid package and the version of squid3 shipped in lenny lack IPv6 support and are not affected by this issue. | ||
| Family: | unix | Class: | patch |
| Reference(s): | DSA-2381-1 CVE-2011-4096 | Version: | 5 |
| Platform(s): | Debian GNU/Linux 6.0 Debian GNU/kFreeBSD 6.0 | Product(s): | squid3 |
| Definition Synopsis: | |||
| Definition Id: oval:org.mitre.oval:def:22004 | |||
| Oval ID: | oval:org.mitre.oval:def:22004 | ||
| Title: | RHSA-2011:1791: squid security update (Moderate) | ||
| Description: | The idnsGrokReply function in Squid before 3.1.16 does not properly free memory, which allows remote attackers to cause a denial of service (daemon abort) via a DNS reply containing a CNAME record that references another CNAME record that contains an empty A record. | ||
| Family: | unix | Class: | patch |
| Reference(s): | RHSA-2011:1791-01 CESA-2011:1791 CVE-2011-4096 | Version: | 4 |
| Platform(s): | Red Hat Enterprise Linux 6 CentOS Linux 6 | Product(s): | squid |
| Definition Synopsis: | |||
| Definition Id: oval:org.mitre.oval:def:23282 | |||
| Oval ID: | oval:org.mitre.oval:def:23282 | ||
| Title: | ELSA-2011:1791: squid security update (Moderate) | ||
| Description: | The idnsGrokReply function in Squid before 3.1.16 does not properly free memory, which allows remote attackers to cause a denial of service (daemon abort) via a DNS reply containing a CNAME record that references another CNAME record that contains an empty A record. | ||
| Family: | unix | Class: | patch |
| Reference(s): | ELSA-2011:1791-01 CVE-2011-4096 | Version: | 6 |
| Platform(s): | Oracle Linux 6 | Product(s): | squid |
| Definition Synopsis: | |||
| Definition Id: oval:org.mitre.oval:def:28153 | |||
| Oval ID: | oval:org.mitre.oval:def:28153 | ||
| Title: | DEPRECATED: ELSA-2011-1791 -- squid security update (moderate) | ||
| Description: | [-7:3.1.10-1.el6_2.1] - Resolves: #755016 - CVE-2011-4096: Invalid free by processing CNAME DNS record | ||
| Family: | unix | Class: | patch |
| Reference(s): | ELSA-2011-1791 CVE-2011-4096 | Version: | 4 |
| Platform(s): | Oracle Linux 6 | Product(s): | squid |
| Definition Synopsis: | |||
CPE : Common Platform Enumeration
OpenVAS Exploits
| Date | Description |
|---|---|
| 2012-07-30 | Name : CentOS Update for squid CESA-2011:1791 centos6 File : nvt/gb_CESA-2011_1791_squid_centos6.nasl |
| 2012-07-09 | Name : RedHat Update for squid RHSA-2011:1791-01 File : nvt/gb_RHSA-2011_1791-01_squid.nasl |
| 2012-02-11 | Name : Debian Security Advisory DSA 2381-1 (squid3) File : nvt/deb_2381_1.nasl |
| 2011-11-18 | Name : Fedora Update for squid FEDORA-2011-15233 File : nvt/gb_fedora_2011_15233_squid_fc15.nasl |
| 2011-11-18 | Name : Fedora Update for squid FEDORA-2011-15256 File : nvt/gb_fedora_2011_15256_squid_fc14.nasl |
| 2011-11-01 | Name : Squid Proxy Caching Server CNAME Denial of Service Vulnerability File : nvt/gb_squid_50449.nasl |
Open Source Vulnerability Database (OSVDB)
| Id | Description |
|---|---|
| 76742 | Squid DNS Replies CName Record Parsing Remote DoS |
Snort® IPS/IDS
| Date | Description |
|---|---|
| 2019-10-15 | Squid proxy DNS CNAME record response denial of service attempt RuleID : 51485 - Revision : 1 - Type : SERVER-OTHER |
Nessus® Vulnerability Scanner
| Date | Description |
|---|---|
| 2016-09-02 | Name : The remote SUSE host is missing one or more security updates. File : suse_SU-2016-1996-1.nasl - Type : ACT_GATHER_INFO |
| 2016-09-02 | Name : The remote SUSE host is missing one or more security updates. File : suse_SU-2016-2089-1.nasl - Type : ACT_GATHER_INFO |
| 2014-06-13 | Name : The remote openSUSE host is missing a security update. File : suse_11_4_squid3-111222.nasl - Type : ACT_GATHER_INFO |
| 2013-09-28 | Name : The remote Gentoo host is missing one or more security-related patches. File : gentoo_GLSA-201309-22.nasl - Type : ACT_GATHER_INFO |
| 2013-07-12 | Name : The remote Oracle Linux host is missing a security update. File : oraclelinux_ELSA-2011-1791.nasl - Type : ACT_GATHER_INFO |
| 2012-09-06 | Name : The remote Mandriva Linux host is missing one or more security updates. File : mandriva_MDVSA-2011-193.nasl - Type : ACT_GATHER_INFO |
| 2012-08-01 | Name : The remote Scientific Linux host is missing one or more security updates. File : sl_20111206_squid_on_SL6_x.nasl - Type : ACT_GATHER_INFO |
| 2012-01-30 | Name : The remote SuSE 11 host is missing a security update. File : suse_11_squid3-111222.nasl - Type : ACT_GATHER_INFO |
| 2012-01-12 | Name : The remote Debian host is missing a security-related update. File : debian_DSA-2381.nasl - Type : ACT_GATHER_INFO |
| 2011-12-23 | Name : The remote CentOS host is missing a security update. File : centos_RHSA-2011-1791.nasl - Type : ACT_GATHER_INFO |
| 2011-12-14 | Name : The remote proxy server is affected by a denial of service vulnerability. File : squid_3_1_16.nasl - Type : ACT_GATHER_INFO |
| 2011-12-07 | Name : The remote Red Hat host is missing one or more security updates. File : redhat-RHSA-2011-1791.nasl - Type : ACT_GATHER_INFO |
| 2011-11-18 | Name : The remote Fedora host is missing a security update. File : fedora_2011-15233.nasl - Type : ACT_GATHER_INFO |
| 2011-11-18 | Name : The remote Fedora host is missing a security update. File : fedora_2011-15256.nasl - Type : ACT_GATHER_INFO |
Alert History
| Date | Informations |
|---|---|
| 2014-02-17 11:42:38 |
|
