OpenLDAP ber_get_next function denial of service
| openldap-bergetnext-dos (43515) |  Low Risk |
Description:
OpenLDAP is vulnerable to a denial of service, caused by an error in the ber_get_next function. By sending a specially-crafted ASN.1 BER encoded packet, a remote attacker could cause the slapd process to crash.
Platforms Affected:
- Apple, Mac OS X 10.4.11
- Apple, Mac OS X 10.5.4
- Apple, Mac OS X Server 10.4.11
- Apple, Mac OS X Server 10.5.4
- Canonical, Ubuntu 6.06 LTS
- Canonical, Ubuntu 7.04
- Canonical, Ubuntu 7.10
- Canonical, Ubuntu 8.04 LTS
- Debian, Debian Linux 4.0
- Gentoo, Linux
- MandrakeSoft, Mandrake Linux 2007.1 X86_64
- MandrakeSoft, Mandrake Linux 2007.1
- MandrakeSoft, Mandrake Linux 2008.0
- MandrakeSoft, Mandrake Linux 2008.0 X86_64
- MandrakeSoft, Mandrake Linux 2008.1
- MandrakeSoft, Mandrake Linux 2008.1 X86_64
- MandrakeSoft, Mandrake Linux Corporate Server 3.0
- MandrakeSoft, Mandrake Linux Corporate Server 3.0 X86_64
- MandrakeSoft, Mandrake Linux Corporate Server 4.0
- MandrakeSoft, Mandrake Linux Corporate Server 4.0 X86_64
- MandrakeSoft, Mandrake Multi Network Firewall 2.0
- OpenLDAP, OpenLDAP 2.3.41
- OpenLDAP, OpenLDAP 2.3.42
- RedHat, Enterprise Linux 4 WS
- RedHat, Enterprise Linux 4 AS
- RedHat, Enterprise Linux 4 ES
- RedHat, Enterprise Linux 4 Desktop
- RedHat, Enterprise Linux 5
- RedHat, Enterprise Linux 5 Client
- RedHat, Enterprise Linux 5 Client Workstation
- Turbolinux, Turbolinux 10 Server
- Turbolinux, Turbolinux 10 Server x64 Ed
- Turbolinux, Turbolinux 11 Server
- Turbolinux, Turbolinux 11 Server x64 Ed
- Turbolinux, Turbolinux FUJI
- Turbolinux, Turbolinux Appliance Server 2.0
Remedy:
Apply the patch for this vulnerability (revision 1.121 or later), available from the OpenLDAP CVS repository. See References.
For other distributions:
Apply the appropriate update for your system. See References.
Consequences:
Denial of Service
References:
- Apple Web site, About Security Update 2008-005 at http://support.apple.com/kb/HT2647.
- OpenLDAP CVS repository, OpenLDAP at http://www.openldap.org/devel/cvsweb.cgi/libraries/liblber/io.c.diff?r1=1.120&r2=1.121.
- OpenLDAP Web site, BER Decoding Remote DoS Vulnerability at http://www.openldap.org/its/index.cgi/Software%20Bugs?id=5580.
- OpenLDAP Web site, Download at http://www.openldap.org/software/download/.
- ZDI-08-052, OpenLDAP BER Decoding Remote DoS Vulnerability at http://www.zerodayinitiative.com/advisories/ZDI-08-052/.
- ASA-2008-348: openldap security update (RHSA-2008-0583)
- BID-30013: OpenLDAP BER Decoding Remote Denial of Service Vulnerability
- CVE-2008-2952: liblber/io.c in OpenLDAP 2.2.4 to 2.4.10 allows remote attackers to cause a denial of service (program termination) via crafted ASN.1 BER datagrams that trigger an assertion error.
- DSA-1650: openldap2.3 -- denial of service
- GLSA-200808-09: OpenLDAP: Denial of Service vulnerability
- MDVSA-2008:144: Updated openldap packages fix slapd DoS vulnerability
- RHSA-2008-0583: Important: openldap security update
- SA30853: OpenLDAP ASN.1 BER Decoding Denial of Service
- SA31326: Apple Mac OS X Security Update Fixes Multiple Vulnerabilities
- SECTRACK ID: 1020405: OpenLDAP ber_get_next() Bug Lets Remote Users Deny Service
- SUSE-SR:2008:021: SUSE Security Summary Report
Reported:
Jun 26, 2008
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