Balabit syslog-ng remote denial of service
|balabit-syslog-ng-dos (5576)||Medium Risk|
Balabit is vulnerable to a denial of service attack, due to a vulnerability in the log message parsing function. Syslog-ng is a replacement for syslogd on many Unix platforms. Each log message has a priority label formatted <n>. If the > is left off the priority label, an error occurs in the parsing function. A remote attacker can send a specially-crafted packet containing '<n', followed by a newline character to one of the input channels to cause syslog-ng to crash with a segmentation fault.
Denial of Service
Upgrade to the latest version of syslog-ng (1.49a or later), available from the Balabit Download Page. See References.
Upgrade to the latest version of syslog-ng (1.4.10 or later), as listed in FreeBSD Ports Security Advisory, FreeBSD-SA-01:02. See References.
- Balabit Download Page: Index of /downloads/syslog-ng/1.4.
- BugTraq Mailing List, Wed Nov 22 2000 - 11:06:29 CST: DoS possibility in syslog-ng.
- FreeBSD Security Advisory FreeBSD-SA-01:02: syslog-ng remote denial-of-service.
- BID-1981: Balabit syslog-ng Incomplete Priority String Remote DoS Vulnerability
- CVE-2000-1165: Balabit syslog-ng allows remote attackers to cause a denial of service (application crash) via a malformed log message that does not have a closing > in the priority specifier.
- OSVDB ID: 1659: Balabit syslog-ng Incomplete Priority String Remote DoS
- BalaBit Balabit syslog-ng 1.4.8 and prior
Nov 23, 2000
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 ignore thisxforceignore this@ignore thisus.ignore thisibm.comignore this