Description
A memory leak in rsyslog before 5.7.6 was found in the way deamon processed log messages are logged when $RepeatedMsgReduction was enabled. A local attacker could use this flaw to cause a denial of the rsyslogd daemon service by crashing the service via a sequence of repeated log messages sent within short periods of time.
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-2011-1488
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2011-1488
- https://access.redhat.com/security/cve/cve-2011-1488
- http://lists.opensuse.org/opensuse-security-announce/2011-04/msg00005.html
- https://github.com/rsyslog/rsyslog/commit/1ef709cc97d54f74d3fdeb83788cc4b01f4c6a2a