Description
A memory leak in rsyslog before 5.7.6 was found in the way deamon processed log messages were logged when multiple rulesets were used and some output batches contained messages belonging to more than one ruleset. A local attacker could cause denial of the rsyslogd daemon service via a log message belonging to more than one ruleset.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| rsyslog | rsyslog | before 5.7.6 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | rsyslog | 5.7.6-1 | — |
| Debian 13 | rsyslog | 5.7.6-1 | — |
| Debian 12 | rsyslog | 5.7.6-1 | — |
References
- https://security-tracker.debian.org/tracker/CVE-2011-1489
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2011-1489
- https://access.redhat.com/security/cve/cve-2011-1489
- http://lists.opensuse.org/opensuse-security-announce/2011-04/msg00005.html
- https://github.com/rsyslog/rsyslog/commit/1ef709cc97d54f74d3fdeb83788cc4b01f4c6a2a