CVE-2011-1488: rsyslog vulnerability

CVE-2011-1488: A memory leak in rsyslog before 5.7.6 was found in the way deamon processed log messages are logged when $R...

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.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 6, 2024, 22:28 UTC (UTC+00:00)

Security readout for executives and security teams

CVE-2011-1488 is a denial-of-service issue in older rsyslog. When repeated-message reduction is enabled, repeated local log messages can leak memory and crash rsyslogd. The business impact is loss of logging, reducing monitoring, troubleshooting, and incident visibility on legacy systems using rsyslog before 5.7.6. Exposure is most likely on legacy Linux deployments running rsyslog before 5.7.6 with $RepeatedMsgReduction enabled. Systems depending on local rsyslogd for audit, security, or operational telemetry have higher operational impact. Treat as a legacy logging availability risk. It is not shown as actively exploited, but loss of rsyslog can blind monitoring and incident response on affected hosts. Mitigation focus: Upgrade rsyslog to 5.7.6 or a vendor-supported fixed package.; Review vendor advisories for distribution-specific backported fixes.; Disable $RepeatedMsgReduction where upgrade is delayed and operationally acceptable..

Prepared: Jun 6, 2026, 04:48 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cve · low confidence lookup

CVE-2011-1488 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup

Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Nov 14, 2019, 01:15 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

5Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
https://security-tracker.debian.org/tracker/CVE-2011-1488CVE reference · x_refsource_MISC
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2011-1488CVE reference · x_refsource_MISC
https://access.redhat.com/security/cve/cve-2011-1488CVE reference · x_refsource_MISC
https://github.com/rsyslog/rsyslog/commit/1ef709cc97d54f74d3fdeb83788cc4b01f4c6a2aCVE reference · x_refsource_MISC

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

rsyslogrsyslogbefore 5.7.6Listed

Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.