Syslog-ng does not properly initialize its chroot jail allowing for an escape if a separate vulnerability in Syslog-ng is exploited.
|Package||app-admin/syslog-ng on all architectures|
|Affected versions||< 2.1.3|
|Unaffected versions||revision >= 2.0.10
Syslog-ng is a flexible and scalable system logger.
Florian Grandel reported that Syslog-ng does not call chdir() before chroot() which leads to an inherited file descriptor to the current working directory.
A local attacker might exploit a separate vulnerability in Syslog-ng and use this vulnerability to escape the chroot jail.
There is no known workaround at this time.
All Syslog-ng 2.0 users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=app-admin/syslog-ng-2.0.10"
All Syslog-ng 2.1 users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=app-admin/syslog-ng-2.1.3"
July 12, 2009
July 12, 2009: 01