Executive Summary
Summary | |
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Title | New openssh packages fix denial of service |
Informations | |||
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Name | DSA-1212 | First vendor Publication | 2006-11-15 |
Vendor | Debian | Last vendor Modification | 2006-11-15 |
Severity (Vendor) | N/A | Revision | 1 |
Security-Database Scoring CVSS v3
Cvss vector : N/A | |||
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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:M/Au:N/C:C/I:C/A:C) | |||
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Cvss Base Score | 9.3 | Attack Range | Network |
Cvss Impact Score | 10 | Attack Complexity | Medium |
Cvss Expoit Score | 8.6 | Authentication | None Required |
Calculate full CVSS 2.0 Vectors scores |
Detail
Two denial of service vulnerabilities have been found in the OpenSSH server. CVE-2006-4924 The sshd support for ssh protcol version 1 does not properly handle duplicate incoming blocks. This could allow a remote attacker to cause sshd to consume significant CPU resources leading to a denial of service. CVE-2006-5051 A signal handler race condition could potentially allow a remote attacker to crash sshd and could theoretically lead to the ability to execute arbitrary code. For the stable distribution (sarge), these problems have been fixed in version 1:3.8.1p1-8.sarge.6 For the unstable and testing distributions, these problems have been fixed in version 1:4.3p2-4 We recommend that you upgrade your openssh package. |
Original Source
Url : http://www.debian.org/security/2006/dsa-1212 |
CWE : Common Weakness Enumeration
% | Id | Name |
---|---|---|
50 % | CWE-415 | Double Free |
50 % | CWE-399 | Resource Management Errors |
OVAL Definitions
Definition Id: oval:org.mitre.oval:def:10462 | |||
Oval ID: | oval:org.mitre.oval:def:10462 | ||
Title: | sshd in OpenSSH before 4.4, when using the version 1 SSH protocol, allows remote attackers to cause a denial of service (CPU consumption) via an SSH packet that contains duplicate blocks, which is not properly handled by the CRC compensation attack detector. | ||
Description: | sshd in OpenSSH before 4.4, when using the version 1 SSH protocol, allows remote attackers to cause a denial of service (CPU consumption) via an SSH packet that contains duplicate blocks, which is not properly handled by the CRC compensation attack detector. | ||
Family: | unix | Class: | vulnerability |
Reference(s): | CVE-2006-4924 | Version: | 5 |
Platform(s): | Red Hat Enterprise Linux 3 CentOS Linux 3 Red Hat Enterprise Linux 4 CentOS Linux 4 Oracle Linux 4 | Product(s): | |
Definition Synopsis: | |||
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Definition Id: oval:org.mitre.oval:def:11387 | |||
Oval ID: | oval:org.mitre.oval:def:11387 | ||
Title: | Signal handler race condition in OpenSSH before 4.4 allows remote attackers to cause a denial of service (crash), and possibly execute arbitrary code if GSSAPI authentication is enabled, via unspecified vectors that lead to a double-free. | ||
Description: | Signal handler race condition in OpenSSH before 4.4 allows remote attackers to cause a denial of service (crash), and possibly execute arbitrary code if GSSAPI authentication is enabled, via unspecified vectors that lead to a double-free. | ||
Family: | unix | Class: | vulnerability |
Reference(s): | CVE-2006-5051 | Version: | 5 |
Platform(s): | Red Hat Enterprise Linux 3 CentOS Linux 3 Red Hat Enterprise Linux 4 CentOS Linux 4 Oracle Linux 4 | Product(s): | |
Definition Synopsis: | |||
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Definition Id: oval:org.mitre.oval:def:1193 | |||
Oval ID: | oval:org.mitre.oval:def:1193 | ||
Title: | Security Vulnerability in the sshd(1M) Protocol Version 1 Implementation May Allow a Denial of Service to the Host | ||
Description: | sshd in OpenSSH before 4.4, when using the version 1 SSH protocol, allows remote attackers to cause a denial of service (CPU consumption) via an SSH packet that contains duplicate blocks, which is not properly handled by the CRC compensation attack detector. | ||
Family: | unix | Class: | vulnerability |
Reference(s): | CVE-2006-4924 | Version: | 1 |
Platform(s): | Sun Solaris 9 Sun Solaris 10 | Product(s): | |
Definition Synopsis: | |||
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CPE : Common Platform Enumeration
OpenVAS Exploits
Date | Description |
---|---|
2009-11-17 | Name : Mac OS X Version File : nvt/macosx_version.nasl |
2009-10-10 | Name : SLES9: Security update for OpenSSH File : nvt/sles9p5019505.nasl |
2009-02-27 | Name : Fedora Update for openssh FEDORA-2007-395 File : nvt/gb_fedora_2007_395_openssh_fc5.nasl |
2008-09-24 | Name : Debian Security Advisory DSA 1638-1 (openssh) File : nvt/deb_1638_1.nasl |
2008-09-24 | Name : Gentoo Security Advisory GLSA 200609-17 (openssh) File : nvt/glsa_200609_17.nasl |
2008-09-24 | Name : Gentoo Security Advisory GLSA 200611-06 (openssh) File : nvt/glsa_200611_06.nasl |
2008-09-04 | Name : FreeBSD Ports: openssh File : nvt/freebsd_openssh.nasl |
2008-09-04 | Name : FreeBSD Security Advisory (FreeBSD-SA-06:22.openssh.asc) File : nvt/freebsdsa_openssh3.nasl |
2008-01-17 | Name : Debian Security Advisory DSA 1189-1 (openssh-krb5) File : nvt/deb_1189_1.nasl |
2008-01-17 | Name : Debian Security Advisory DSA 1212-1 (openssh (1:3.8.1p1-8.sarge.6)) File : nvt/deb_1212_1.nasl |
0000-00-00 | Name : Slackware Advisory SSA:2006-272-02 openssh File : nvt/esoft_slk_ssa_2006_272_02.nasl |
Open Source Vulnerability Database (OSVDB)
Id | Description |
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29264 | OpenSSH Signal Handler Pre-authentication Race Condition Code Execution OpenSSH (portable) contains a flaw that may allow a remote attacker to execute arbitrary code under some circumstances. When configured with GSSAPI authentication, the signal handler is prone to a race condition that could be exploited to conduct a Denial of Service and possibly execute arbitrary code. No further details have been provided. Note: On OpenSSH, this vulnerability can only be leveraged for a remote Denial of Service. The conditions for remote exploitation to execute arbitrary code are considered to be unlikely. |
29152 | OpenSSH Identical Block Packet DoS OpenSSH contains a flaw that may allow a pre-authentication remote denial of service. The issue is triggered when SSH version 1 is used via an SSH packet that contains duplicate blocks, and will result in loss of availability for the service. |
Information Assurance Vulnerability Management (IAVM)
Date | Description |
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2012-08-16 | IAVM : 2012-A-0136 - Multiple Vulnerabilities in Juniper Network Management Products Severity : Category I - VMSKEY : V0033662 |
Snort® IPS/IDS
Date | Description |
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2014-01-10 | OpenSSH sshd identical blocks DoS attempt RuleID : 17317 - Revision : 11 - Type : SERVER-OTHER |
Nessus® Vulnerability Scanner
Date | Description |
---|---|
2016-01-28 | Name : The remote device is missing a vendor-supplied security patch. File : f5_bigip_SOL6736.nasl - Type : ACT_GATHER_INFO |
2013-09-13 | Name : The remote host is affected by multiple vulnerabilities. File : juniper_nsm_2012_1.nasl - Type : ACT_GATHER_INFO |
2013-07-12 | Name : The remote Oracle Linux host is missing one or more security updates. File : oraclelinux_ELSA-2006-0697.nasl - Type : ACT_GATHER_INFO |
2011-08-29 | Name : The SSH service running on the remote host has an information disclosure vuln... File : sunssh_plaintext_recovery.nasl - Type : ACT_GATHER_INFO |
2009-04-23 | Name : The remote Ubuntu host is missing one or more security-related patches. File : ubuntu_USN-649-1.nasl - Type : ACT_GATHER_INFO |
2008-09-17 | Name : The remote Debian host is missing a security-related update. File : debian_DSA-1638.nasl - Type : ACT_GATHER_INFO |
2007-12-13 | Name : The remote SuSE 10 host is missing a security-related patch. File : suse_openssh-2184.nasl - Type : ACT_GATHER_INFO |
2007-11-10 | Name : The remote Ubuntu host is missing one or more security-related patches. File : ubuntu_USN-355-1.nasl - Type : ACT_GATHER_INFO |
2007-10-17 | Name : The remote openSUSE host is missing a security update. File : suse_openssh-2183.nasl - Type : ACT_GATHER_INFO |
2007-04-05 | Name : The remote Fedora Core host is missing a security update. File : fedora_2007-395.nasl - Type : ACT_GATHER_INFO |
2007-03-13 | Name : The remote host is missing a Mac OS X update which fixes a security issue. File : macosx_10_4_9.nasl - Type : ACT_GATHER_INFO |
2007-02-18 | Name : The remote Mandrake Linux host is missing one or more security updates. File : mandrake_MDKSA-2006-179.nasl - Type : ACT_GATHER_INFO |
2007-02-18 | Name : The remote host is missing a vendor-supplied security patch File : suse_SA_2006_062.nasl - Type : ACT_GATHER_INFO |
2007-01-17 | Name : The remote Fedora Core host is missing a security update. File : fedora_2006-1011.nasl - Type : ACT_GATHER_INFO |
2006-11-20 | Name : The remote Gentoo host is missing one or more security-related patches. File : gentoo_GLSA-200611-06.nasl - Type : ACT_GATHER_INFO |
2006-11-20 | Name : The remote Debian host is missing a security-related update. File : debian_DSA-1212.nasl - Type : ACT_GATHER_INFO |
2006-10-14 | Name : The remote Debian host is missing a security-related update. File : debian_DSA-1189.nasl - Type : ACT_GATHER_INFO |
2006-10-02 | Name : The remote FreeBSD host is missing one or more security-related updates. File : freebsd_pkg_32db37a550c311dbacf3000c6ec775d9.nasl - Type : ACT_GATHER_INFO |
2006-10-02 | Name : The remote CentOS host is missing one or more security updates. File : centos_RHSA-2006-0697.nasl - Type : ACT_GATHER_INFO |
2006-09-29 | Name : The remote Slackware host is missing a security update. File : Slackware_SSA_2006-272-02.nasl - Type : ACT_GATHER_INFO |
2006-09-29 | Name : The remote Red Hat host is missing one or more security updates. File : redhat-RHSA-2006-0697.nasl - Type : ACT_GATHER_INFO |
2006-09-29 | Name : The remote Red Hat host is missing one or more security updates. File : redhat-RHSA-2006-0698.nasl - Type : ACT_GATHER_INFO |
2006-09-28 | Name : The remote SSH server is affected by multiple vulnerabilities. File : openssh_44.nasl - Type : ACT_GATHER_INFO |
2006-09-28 | Name : The remote Gentoo host is missing one or more security-related patches. File : gentoo_GLSA-200609-17.nasl - Type : ACT_GATHER_INFO |
Alert History
Date | Informations |
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2014-02-17 11:26:20 |
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