Linux dump flock() /etc/dumpdates denial of service
| dump-flock-dumpdates-dos (9632) |  Low Risk |
Description:
The dump backup utility included with various Linux and open-source BSD distributions is vulnerable to a denial of service attack. A local attacker could create a file lock on the /etc/dumpdates file or possibly other dump files to cause the dump utility to be prevented from executing.
Consequences:
Denial of Service
Remedy:
For Red Hat Linux:
Refer to RHSA-2005:583-09 for patch, upgrade, or suggested workaround information. See References.
References:
- BugTraq Mailing List, Wed Jul 17 2002 - 12:31:10 CDT: asciiSECURE advisory (2002-07-17/1).
- ASA-2006-156: dump security update
- BID-5264: Multiple Vendor Dump File Locking Denial Of Service Vulnerability
- CVE-2002-1914: dump 0.4 b10 through b29 allows local users to cause a denial of service (execution prevention) by using flock() to lock the /etc/dumpdates file.
- RHSA-2005-583: dump security update
- SA21520: Avaya Products Multiple Vulnerabilities
Platforms Affected:
- FreeBSD FreeBSD
- Linux Kernel
- NetBSD NetBSD
- OpenBSD OpenBSD
- RedHat Enterprise Linux 2.1 ES
- RedHat Enterprise Linux 2.1 AS
- RedHat Enterprise Linux 2.1 WS
- RedHat Linux Advanced Workstation 2.1 Itanium
Reported:
Jul 17, 2002
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