OpenSSH large packet buffer overflow
| openssh-packet-bo (13191) |  High Risk |
Description:
OpenSSH is vulnerable to a buffer overflow. A remote attacker could send a large packet to overflow a buffer and cause a denial of service and possibly execute arbitrary code on the system.
*CVSS:
| Base Score: | 10 |
| Access Vector: | Remote |
| Access Complexity: | Low |
| Authentication: | Not Required |
| Confidentiality Impact: | Complete |
| Integrity Impact: | Complete |
| Availability Impact: | Complete |
| Temporal Score: | 7.4 |
| Exploitability: | Unproven |
| Remediation Level: | Official-Fix |
| Report Confidence: | Confirmed |
Consequences:
Gain Access
Remedy:
Upgrade to the latest version of OpenSSH (3.7 or later), available from the OpenSSH Web site. See References.
For EnGarde Secure Linux 1.0.1:
Upgrade to the latest version of OpenSSH (3.4p1-1.0.23 or later), as listed in EnGarde Secure Linux Security Advisory ESA-20030916-023. See References.
For Red Hat Linux:
Upgrade to the latest openssh package, as listed below. Refer to RHSA-2003:279-17 for more information. See References.
Red Hat 7.1: 3.1p1-13 or later
Red Hat 7.2 and 7.3: 3.1p1-14 or later
Red Hat 8.0: 3.4p1-7 or later
Red Hat 9: 3.5p1-11 or later
For Red Hat Linux containing the openssh package:
Upgrade to the latest openssh package, as listed below. Refer to RHSA-2003:280-13 for more information. See References.
Red Hat Enterprise Linux AS (v. 2.1), ES (v.2.1), WS (v.2.1), and Red Hat Linux Advanced Workstation 2.1 for the Itanium Processor: 3.1p1-14 or later
For Debian GNU/Linux 3.0 (woody):
Upgrade to the latest openssh package (1:3.4p1-1.1 or later), as listed in DSA-382-1. See References.
For Debian GNU/Linux 3.0 (woody):
Upgrade to the latest openssh-krb5 package (3.4p1-0woody3 or later), as listed in DSA-383-1. See References.
For FreeBSD:
Upgrade to the latest version of FreeBSD (4-STABLE or later) or to (RELENG_5_1,
RELENG_4_8, or RELENG_4_7 security branch dated later than 2003-09-16), as listed in FreeBSD Security Advisory FreeBSD-SA-03:12.openssh. See References.
— OR —
Apply the appropriate patch for your system, as listed in FreeBSD Security Advisory FreeBSD-SA-03:12.openssh. See References.
For SuSE Linux:
Upgrade to the latest openssh package, as listed below. Refer to SuSE Linux Security Announcement SuSE-SA:2003:039 for more information. See References.
SuSE Linux 8.2 (Intel): 3.5p1-107 or later
SuSE Linux 8.1 and 8.0: 3.4p1-215 or later
SuSE Linux 7.3 and 7.2: 2.9.9p2-156 or later
SuSE Linux 7.3 (Sparc): 2.9.9p2-53 or later
SuSE Linx 7.3 (PPC): 2.9.9p2-109 or later
For Gentoo Linux:
Upgrade to the latest version of openssh (3.7_p1 or later), as listed in Gentoo Linux Security Announcement 200309-11. See References.
For Conectiva Linux:
Upgrade to the latest openssh package, as listed below. Refer to Conectiva Linux Security Announcement CLSA-2003:739 for more information. See References.
Conectiva Linux 7.0: 3.4p1-1U70_2cl or later
Conectiva Linux 8: 3.4p1-1U80_2cl or later
Conectiva Linux 9: 3.5p1-27767U90_1cl or later
For Immunix 7+:
Upgrade to the latest version of openssh (3.4p1-1_imnx_12 or later), as listed in Immunix Secured OS Security Advisory IMNX-2003-7+-020-02. See References.
For Slackware Linux:
Upgrade to the latest openssh package, as listed below. Refer to slackware-security Mailing List, Wed Sep 17 01:25:22 PDT 2003 for more information. See References.
Slackware Linux 8.1, 9.0, -current : 3.7p1 or later
For Cisco SN 5428 Storage Router:
Upgrade to the latest version (3.4.1 or later), as listed in the Cisco Security Advisory 2003 September 17 0700 GMT. See References.
For Turbolinux:
Upgrade to the latest openssh package (3.7.1p1-4 or later), as listed in Turbolinux Security Advisory TLSA-2003-51. See References.
For NetBSD-current (dated prior to 2003-09-17), 1.5, 1.5.1, 1.5.2, 1.5.3, 1.6, and 1.6.1:
Upgrade to the appropriate fixed versions of NetBSD, as listed in NetBSD Security Advisory 2003-012. See References.
For Trustix Secure Linux 1.2, 1.5, and 2.0:
Upgrade to the latest openssh package (3.6.1p2-4tr or later), as listed in Trustix Secure Linux Security Advisory #2003-0033. See References.
For HP-UX 11.00, 11.11, and 11.22:
Download and install the appropriate depot for this vulnerability, as listed in Hewlett-Packard Company Security Bulletin HPSBUX0309-282. See References.
For HP-UX 11.04:
Apply the patch for this vulnerability, as listed in Hewlett-Packard Company Security Bulletin HPSBUX0311-302. See References.
For OpenPKG:
Upgrade to the latest openssh package, as listed below. Refer to OpenPKG Security Advisory OpenPKG-SA-2003.040 for more information. See References.
OpenPKG CURRENT: 3.7.1p1-20030917 or later
OpenPKG 1.2: 3.5p1-1.2.4 or later
OpenPKG 1.3: 3.6.1p2-1.3.2 or later
For SGI IRIX:
Upgrade to the appropriate fixed packages, as listed in SGI Security Advisory 20030904-02-P. See References.
For Caldera OpenLinux Server and Workstation 3.1.1:
Upgrade to the latest version of openssh (3.7.1p2-1 or later), as listed in SCO Security Advisory CSSA-2003-027.0. See References.
For other distributions:
Contact your vendor for upgrade or patch information.
References:
- AppleCare Knowledge Base Document 61798: Security Update 2003-08-14. (Mac OS X 10.2.8: OpenSSH: Addresses CAN-2003-0693 to fix buffer management errors in OpenSSH's sshd versions prior to 3.7.1.)
- CERT Advisory CA-2003-24: Buffer Management Vulnerability in OpenSSH.
- CIAC Information Bulletin N-151: OpenSSH Buffer Management Error.
- CIAC Information Bulletin O-030: Hewlett Packard VirtualVault OpenSSH Vulnerabilities.
- Cisco Systems Inc. Security Advisory, 2003 September 17 0700 GMT: OpenSSH Server Vulnerabilities.
- Conectiva Linux Security Announcement CLSA-2003:739: openssh.
- FreeBSD Security Advisory FreeBSD-SA-03:12: OpenSSH buffer management error.
- Full-Disclosure Mailing List, Mon Sep 15 2003 - 18:31:56 CDT: openssh remote exploit.
- Gentoo Linux Security Announcement 200309-11: openssh. (From LinuxSecurity archive)
- Guardian Digital Security Advisory ESA-20030916-023 : OpenSSH buffer management error..
- Immunix Secured OS Security Advisory IMNX-2003-7+-020-01: openssh. (From LinuxSecurity archive)
- Immunix Secured OS Security Advisory IMNX-2003-7+-020-02: openssh. (From LinuxSecurity archive)
- Internet Security Systems Security Advisory, September 16, 2003: OpenSSH Memory Corruption Vulnerability.
- NetBSD Security Advisory 2003-012: Out of bounds memset(0) in sshd. (From LinuxSecurity archive)
- OpenSSH Security Advisory: buffer.adv: buffer.adv.
- OpenSSH Web site: OpenSSH.
- SCO Security Advisory CSSA-2003-027.0: OpenLinux: OpenSSH: multiple buffer handling problems.
- SGI Security Advisory 20030904-01-P: Multiple OpenSSH/OpenSSL Vulnerabilities.
- SGI Security Advisory 20030904-02-P: Multiple OpenSSH/OpenSSL Vulnerabilities Update.
- SGI Security Advisory 20031001-01-U: SGI Advanced Linux Environment security update #2.
- slackware-security Mailing List, Tue, 16 Sep 2003 12:39:36 -0700 (PDT): OpenSSH Security Advisory (SSA:2003-259-01).
- slackware-security Mailing List, Wed Sep 17 01:25:22 PDT 2003: OpenSSH updated again (SSA:2003-260-01). (From LinuxSecurity archive)
- Sun Alert ID: 56861: Secure Shell Daemon (sshd(1M)) Buffer Management Security Vulnerability.
- Trustix Secure Linux Security Advisory #2003-0033: openssh.
- BID-8628: OpenSSH Buffer Mismanagement Vulnerabilities
- CVE-2003-0693: A buffer management error in buffer_append_space of buffer.c for OpenSSH before 3.7 may allow remote attackers to execute arbitrary code by causing an incorrect amount of memory to be freed and corrupting the heap, a different vulnerability than CVE-2003-0695.
- DSA-382: ssh -- possible remote vulnerability
- DSA-383: ssh-krb5 -- possible remote vulnerability
- MDKSA-2003:090: Updated openssh packages fix buffer management error
- MDKSA-2003:090-1: Updated openssh packages fix buffer management error
- OpenPKG-SA-2003.040: OpenSSH
- RHSA-2003-279: Updated OpenSSH packages fix potential vulnerabilities
- RHSA-2003-280: openssh security update
- SUSE-SA:2003:038: openssh: potential remote privilege escalation
- SUSE-SA:2003:039: openssh (second release): potential remote privilege escalation
Platforms Affected:
- Cisco CatOS
- Cisco CiscoWorks 1105 Hosting Solution Engine
- Cisco CiscoWorks 1105 Wireless LAN Solution Engine
- Cisco SN 5428 Storage Router 2-3.3.1-K9
- Cisco SN 5428 Storage Router 2-3.3.2-K9
- Cisco SN 5428 Storage Router 2.5.1-K9
- Cisco SN 5428 Storage Router 3.2.1-K9
- Cisco SN 5428 Storage Router 3.2.2-K9
- Cisco SN 5428 Storage Router 3.3.1-K9
- Cisco SN 5428 Storage Router 3.3.2-K9
- Conectiva Linux 7.0
- Conectiva Linux 8.0
- Conectiva Linux 9.0
- Debian Debian Linux 3.0
- EngardeLinux Secure Linux
- EngardeLinux Secure Professional
- FreeBSD FreeBSD 4.0
- Gentoo Linux
- HP HP-UX 11.00
- HP HP-UX 11.04
- HP HP-UX 11.11
- HP HP-UX 11.22
- Immunix Immunix OS 7+-beta
- MandrakeSoft Mandrake Linux 8.2
- MandrakeSoft Mandrake Linux 8.2 PPC
- MandrakeSoft Mandrake Linux 9.0
- MandrakeSoft Mandrake Linux 9.1 PPC
- MandrakeSoft Mandrake Linux 9.1
- MandrakeSoft Mandrake Linux Corporate Server 2.1
- MandrakeSoft Mandrake Linux Corporate Server 2.1 X86_64
- MandrakeSoft Mandrake Multi Network Firewall 8.2
- NetBSD NetBSD 1.5
- NetBSD NetBSD 1.5.1
- NetBSD NetBSD 1.5.2
- NetBSD NetBSD 1.5.3
- NetBSD NetBSD 1.6
- NetBSD NetBSD 1.6.1
- NetBSD NetBSD CURRENT
- Novell SuSE Linux Enterprise Server 7.0
- OpenBSD OpenSSH 1.2
- OpenBSD OpenSSH 1.2.1
- OpenBSD OpenSSH 1.2.2
- OpenBSD OpenSSH 1.2.27
- OpenBSD OpenSSH 1.2.3
- OpenBSD OpenSSH 2.1
- OpenBSD OpenSSH 2.1.1
- OpenBSD OpenSSH 2.2
- OpenBSD OpenSSH 2.3
- OpenBSD OpenSSH 2.5
- OpenBSD OpenSSH 2.5.1
- OpenBSD OpenSSH 2.5.2
- OpenBSD OpenSSH 2.9
- OpenBSD OpenSSH 2.9.9
- OpenBSD OpenSSH 2.9.9p2
- OpenBSD OpenSSH 2.9p1
- OpenBSD OpenSSH 2.9p2
- OpenBSD OpenSSH 3.0
- OpenBSD OpenSSH 3.0.1
- OpenBSD OpenSSH 3.0.1p1
- OpenBSD OpenSSH 3.0.2
- OpenBSD OpenSSH 3.0.2p1
- OpenBSD OpenSSH 3.0p1
- OpenBSD OpenSSH 3.1
- OpenBSD OpenSSH 3.1p1
- OpenBSD OpenSSH 3.2
- OpenBSD OpenSSH 3.2.2
- OpenBSD OpenSSH 3.2.2p1
- OpenBSD OpenSSH 3.2.3p1
- OpenBSD OpenSSH 3.3
- OpenBSD OpenSSH 3.3p1
- OpenBSD OpenSSH 3.4
- OpenBSD OpenSSH 3.4p1
- OpenBSD OpenSSH 3.5
- OpenBSD OpenSSH 3.5p1
- OpenBSD OpenSSH 3.6
- OpenBSD OpenSSH 3.6.1
- OpenBSD OpenSSH 3.6.1p1
- OpenBSD OpenSSH 3.6.1p2
- OpenPKG OpenPKG 1.2
- OpenPKG OpenPKG 1.3
- OpenPKG OpenPKG CURRENT
- RedHat Enterprise Linux 2.1 AS
- RedHat Enterprise Linux 2.1 ES
- RedHat Enterprise Linux 2.1 WS
- RedHat Enterprise Linux 2.1 AW
- RedHat Linux 7
- RedHat Linux 7.1
- RedHat Linux 7.2
- RedHat Linux 7.3
- RedHat Linux 8.0
- RedHat Linux 9.0
- RedHat Linux Advanced Workstation 2.1 Itanium
- SCO Caldera OpenLinux Server 3.1.1
- SCO Caldera OpenLinux Workstation 3.1.1
- SGI IRIX 2.2.1
- SGI IRIX 2.3
- SGI IRIX 6.0
- SGI IRIX 6.0.1
- SGI IRIX 6.1
- SGI IRIX 6.2
- SGI IRIX 6.3
- SGI IRIX 6.4
- SGI IRIX 6.5
- SGI IRIX 6.5.1
- SGI IRIX 6.5.10
- SGI IRIX 6.5.10f
- SGI IRIX 6.5.10m
- SGI IRIX 6.5.11
- SGI IRIX 6.5.11f
- SGI IRIX 6.5.11m
- SGI IRIX 6.5.12
- SGI IRIX 6.5.12f
- SGI IRIX 6.5.12m
- SGI IRIX 6.5.13
- SGI IRIX 6.5.13f
- SGI IRIX 6.5.13m
- SGI IRIX 6.5.14
- SGI IRIX 6.5.14f
- SGI IRIX 6.5.14m
- SGI IRIX 6.5.15
- SGI IRIX 6.5.15f
- SGI IRIX 6.5.15m
- SGI IRIX 6.5.16
- SGI IRIX 6.5.16f
- SGI IRIX 6.5.16m
- SGI IRIX 6.5.17
- SGI IRIX 6.5.17f
- SGI IRIX 6.5.17m
- SGI IRIX 6.5.18
- SGI IRIX 6.5.18f
- SGI IRIX 6.5.18m
- SGI IRIX 6.5.19
- SGI IRIX 6.5.19f
- SGI IRIX 6.5.19m
- SGI IRIX 6.5.2
- SGI IRIX 6.5.20
- SGI IRIX 6.5.20f
- SGI IRIX 6.5.20m
- SGI IRIX 6.5.21
- SGI IRIX 6.5.21f
- SGI IRIX 6.5.21m
- SGI IRIX 6.5.2f
- SGI IRIX 6.5.2m
- SGI IRIX 6.5.3
- SGI IRIX 6.5.3f
- SGI IRIX 6.5.3m
- SGI IRIX 6.5.4
- SGI IRIX 6.5.4f
- SGI IRIX 6.5.4m
- SGI IRIX 6.5.5
- SGI IRIX 6.5.5f
- SGI IRIX 6.5.5m
- SGI IRIX 6.5.6
- SGI IRIX 6.5.6f
- SGI IRIX 6.5.6m
- SGI IRIX 6.5.7
- SGI IRIX 6.5.7f
- SGI IRIX 6.5.7m
- SGI IRIX 6.5.8
- SGI IRIX 6.5.8f
- SGI IRIX 6.5.8m
- SGI IRIX 6.5.9
- SGI IRIX 6.5.9f
- SGI IRIX 6.5.9m
- Slackware Slackware Linux 8.1
- Slackware Slackware Linux 9.0
- Slackware Slackware Linux current
- Sun Solaris 9
- SuSE Linux Enterprise Server 8
- SuSE SuSE eMail Server 3.1
- SuSE SuSE eMail Server III
- SUSE SuSE Linux 7.2
- SUSE SuSE Linux 7.3
- SUSE SuSE Linux 8.0
- SUSE SuSE Linux 8.1
- SUSE SuSE Linux 8.2
- SuSE SuSE Linux Connectivity Server
- SuSE SuSE Linux Database Server
- SuSE SuSE Linux Firewall
- SuSE SuSE Linux Office Server
- SuSE SuSE Linux Standard Server 8
- Trustix Secure Linux 1.2
- Trustix Secure Linux 1.5
- Trustix Secure Linux 2.0
- Turbolinux Turbolinux 7 Server
- Turbolinux Turbolinux 7 Workstation
- Turbolinux Turbolinux 8 Server
- Turbolinux Turbolinux 8 Workstation
- Turbolinux Turbolinux Advanced Server 6
- Turbolinux Turbolinux Server 6.1
- Turbolinux Turbolinux Server 6.5
- Turbolinux Turbolinux Workstation 6.0
Reported:
Sep 16, 2003
The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall the author/distributor (IBM Internet Security Systems X-Force) be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.
For corrections or additions please email xforce@iss.net
* According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES "AS IS" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.
The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.