MEDIUM
CVE-2011-1489
CWE-772Published: November 14, 2019· Updated: Jun 16, 2026
5.5
CVSS v3.1
Official 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.
Technical Analysis
CVE-2011-1489 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
A successful exploit results in availability disruption (denial of service), with a CVSS base score of 5.5.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected Vendors & Products
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
All References (10)
→
http://lists.opensuse.org/opensuse-security-announce/2011-04/msg00005.htmlMailing List · Third Party Advisory
→
https://access.redhat.com/security/cve/cve-2011-1489Exploit · Patch · Third Party Advisory
→
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2011-1489Issue Tracking · Third Party Advisory
→
https://github.com/rsyslog/rsyslog/commit/1ef709cc97d54f74d3fdeb83788cc4b01f4c6a2aPatch · Third Party Advisory
→
https://security-tracker.debian.org/tracker/CVE-2011-1489Third Party Advisory
→
http://lists.opensuse.org/opensuse-security-announce/2011-04/msg00005.htmlMailing List · Third Party Advisory
→
https://access.redhat.com/security/cve/cve-2011-1489Exploit · Patch · Third Party Advisory
→
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2011-1489Issue Tracking · Third Party Advisory
→
https://github.com/rsyslog/rsyslog/commit/1ef709cc97d54f74d3fdeb83788cc4b01f4c6a2aPatch · Third Party Advisory
→
https://security-tracker.debian.org/tracker/CVE-2011-1489Third Party Advisory
Quick Facts
CVE IDCVE-2011-1489
CVSS Score5.5 / 10
SeverityMEDIUM
WeaknessCWE-772
CISA KEVNo
Affected3 vendor(s)
PublishedNov 14, 2019
Related CVEs (CWE-772)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2011-1489 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.