rsyslog: Memory leak when $RepeatedMsgReduction turned on
Published Nov 14, 2019
5.5
MEDIUMCVSS 3.1
EPSS 0.48%
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
-
- Version before 5.7.6StatusaffectedConstraints-
- Version
Configuration 3
- 8.0
- 9.0
- 10.0
No data.
Red Hat Enterprise Linux 5
rsyslog
Not affected
Red Hat Enterprise Linux 6
rsyslog
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | rsyslog | Not affected | n/a |
| Red Hat Enterprise Linux 6 | rsyslog | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
Not vulnerable. This issue did not affect the versions of rsyslog as shipped with Red Hat Enterprise Linux 5 and 6.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
No CVSS v3.0 score for this CVE.
AV:L/AC:M/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.48% (0.00476) | 38.80th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.48% (0.00476) | 37.17th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.06% (0.00062) | 16.47th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.04% (0.00042) | 5.07th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00042) | 5.63th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.95% (0.00950) | 32.28th | v2 (v2022.01.01) |
| Sep 10, 2022 | 0.95% (0.00950) | 30.63th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.95% (0.00950) | 28.61th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.95% (0.00950) | 13.46th | v2 (v2022.01.01) |
References (9)
- http://lists.opensuse.org/opensuse-security-announce/2011-04/msg00005.html x_refsource_MISCMailing ListThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2011-1488 Vendor Advisory
- https://access.redhat.com/security/cve/cve-2011-1488 x_refsource_MISCThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=694122 Issue Tracking
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2011-1488 x_refsource_MISCExploitIssue TrackingPatchThird Party Advisory
- https://github.com/rsyslog/rsyslog/commit/1ef709cc97d54f74d3fdeb83788cc4b01f4c6a2a x_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2011-1488
- https://security-tracker.debian.org/tracker/CVE-2011-1488 x_refsource_MISCThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2011-1488
| Link | Providers | Tags |
|---|---|---|
| http://lists.opensuse.org/opensuse-security-announce/2011-04/msg00005.html | x_refsource_MISCMailing ListThird Party Advisory | |
| https://access.redhat.com/security/cve/CVE-2011-1488 | Vendor Advisory | |
| https://access.redhat.com/security/cve/cve-2011-1488 | x_refsource_MISCThird Party Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=694122 | Issue Tracking | |
| https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2011-1488 | x_refsource_MISCExploitIssue TrackingPatchThird Party Advisory | |
| https://github.com/rsyslog/rsyslog/commit/1ef709cc97d54f74d3fdeb83788cc4b01f4c6a2a | x_refsource_MISC | |
| https://nvd.nist.gov/vuln/detail/CVE-2011-1488 | ||
| https://security-tracker.debian.org/tracker/CVE-2011-1488 | x_refsource_MISCThird Party Advisory | |
| https://www.cve.org/CVERecord?id=CVE-2011-1488 |
Change history (0)
No recorded changes yet.