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Vulnerability record · CVE-2011-1489 · published 14 November 2019

CVE-2011-1489: Rsyslog vulnerability

Rsyslog · Rsyslog

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.

5.5 CVSS 3.1 Medium EPSS 0.47% · top 61.1% CWE-772 · CWE-772
5.5CVSS 3.1 base score, v2 2.1
0.47%EPSS exploitation probability, 30 days
NoNot in CISA KEV
3Affected product versions listed by NVD
10References, 2 tagged exploit
16 Jun 2026Last modified by NVD

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.

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected products

3 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://lists.opensuse.org/opensuse-security-announce/2011-04/msg00005.html Mailing ListThird Party Advisory
https://access.redhat.com/security/cve/cve-2011-1489 ExploitPatchThird Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2011-1489 Issue TrackingThird Party Advisory
https://github.com/rsyslog/rsyslog/commit/1ef709cc97d54f74d3fdeb83788cc4b01f4c6a2a PatchThird Party Advisory
https://security-tracker.debian.org/tracker/CVE-2011-1489 Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2011-04/msg00005.html Mailing ListThird Party Advisory
https://access.redhat.com/security/cve/cve-2011-1489 ExploitPatchThird Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2011-1489 Issue TrackingThird Party Advisory
https://github.com/rsyslog/rsyslog/commit/1ef709cc97d54f74d3fdeb83788cc4b01f4c6a2a PatchThird Party Advisory
https://security-tracker.debian.org/tracker/CVE-2011-1489 Third Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2011-1489), CISA KEV, FIRST EPSS (scores of 2026-10-05). This page is refreshed as NVD updates the record.