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Vulnerability record · CVE-2011-1488 · published 14 November 2019

CVE-2011-1488: Rsyslog vulnerability

Rsyslog · Rsyslog

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.

5.5 CVSS 3.1 Medium EPSS 0.48% · top 61.1% CWE-772 · CWE-772
5.5CVSS 3.1 base score, v2 1.9
0.48%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 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.

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-2011-1488 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2011-1488 ExploitIssue TrackingPatchThird Party Advisory
https://github.com/rsyslog/rsyslog/commit/1ef709cc97d54f74d3fdeb83788cc4b01f4c6a2a
https://security-tracker.debian.org/tracker/CVE-2011-1488 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-2011-1488 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2011-1488 ExploitIssue TrackingPatchThird Party Advisory
https://github.com/rsyslog/rsyslog/commit/1ef709cc97d54f74d3fdeb83788cc4b01f4c6a2a
https://security-tracker.debian.org/tracker/CVE-2011-1488 Third Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2011-1488), CISA KEV, FIRST EPSS (scores of 2026-10-05). This page is refreshed as NVD updates the record.