CVE-2011-1490 Denial of service in rsyslog
A local attacker can cause a denial of service in rsyslog by sending log messages that trigger a memory leak when multiple rulesets are configured.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2011-1490?
CVE-2011-1490 is a medium-severity denial of service vulnerability in Debian Debian Linux, published on 14 Nov 2019. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A memory leak in rsyslog before 5.7.6 was found in the way deamon processed log messages are 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
Weakness: CWE-772
Which versions are affected by CVE-2011-1490?
It affects 3 products.
Products include Debian Debian Linux, Opensuse Opensuse, Rsyslog Rsyslog.
How do I fix CVE-2011-1490?
Upgrade to a fixed version.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2011-1490 being exploited?
There is no known exploitation of CVE-2011-1490 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as DEBIAN-CVE-2011-1490, GHSA-ph9m-fj6v-j5p3.