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Syslog-ng: Denial of Service


1.  Gentoo Linux Security Advisory

Version Information

Advisory Reference GLSA 200712-19 / syslog-ng
Release Date December 29, 2007
Latest Revision December 29, 2007: 01
Impact normal
Exploitable remote
Package Vulnerable versions Unaffected versions Architecture(s)
app-admin/syslog-ng < 2.0.6 >= 2.0.6 All supported architectures

Related bugreports: #202718


A Denial of Service vulnerability has been discovered in Syslog-ng.

2.  Impact Information


Syslog-ng is a flexible and scalable system logger.


Oriol Carreras reported a NULL pointer dereference in the log_msg_parse() function when processing timestamps without a terminating whitespace character.


A remote attacker could send a specially crafted event to a vulnerable Syslog-ng server, resulting in a crash.

3.  Resolution Information


There is no known workaround at this time.


All Syslog-ng users should upgrade to the latest version:

Code Listing 3.1: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=app-admin/syslog-ng-2.0.6"

4.  References


Page updated December 29, 2007

Summary: This is a Gentoo Linux Security Advisory

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