CVE-2011-1489

Exp

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.

Published: 2019-11-14 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]

NVD Status：Modified，CVE State: published

View at NVD, CVE.org, EUVD

Threat Intelligence & Risk Assessment for CVE-2011-1489

EPSS CVSS CWE Exploit-DB Affected OS Tracker

Conclusion & alert: CVE-2011-1489 is rated Exploit Available (50/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.15%). Core evidence: 1 public exploit reference(s) are indexed (Exploit-DB). Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2011-1489

EDB-ID	Source	Kind	Published	Link
—	nvd_ref	exploit_tag		Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2011-1489

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2025-03-24	0.06%	0.15%	+0.09%
2	2025-03-17	0.04%	0.06%	+0.02%
3	2023-03-07	—	0.04%	—

Full EPSS history (4 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2011-1489

CVSS metrics for this CVE.

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
5.5	3.1	MEDIUM	`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H` Click to expand Attack vector (AV:L) They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by. Attack complexity (AC:L) Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup. Privileges required (PR:L) A normal user session is enough; they don’t have to be admin. User interaction (UI:N) Nobody has to click “OK” or open a trap file; it can work without a victim helping. Scope (S:U) Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems. Confidentiality (C:N) Doesn’t really leak secrets in a meaningful way. Integrity (I:N) Data isn’t meaningfully altered or forged. Availability (A:H) Could take the service down hard or make it unusable for people who depend on it.	1.8	3.6	[email protected]
2.1	2.0	LOW	`AV:L/AC:L/Au:N/C:N/I:N/A:P` Click to expand Access vector (AV:L) Requires local access to the target system. Access complexity (AC:L) Exploitation conditions are straightforward and predictable. Authentication (AU:N) No authentication is required. Confidentiality impact (C:N) No confidentiality impact. Integrity impact (I:N) No integrity impact. Availability impact (A:P) Partial availability impact.	3.9	2.9	[email protected]

Weakness enumeration for CVE-2011-1489

CWE-772 MITRE ↗

OS Trackers for CVE-2011-1489

vendor	priority	summary	link
`debian`	low	CVE-2011-1489 low priority: Debian including 1 source packages (rsyslog), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5.	https://security-tracker.debian.org/tracker/CVE-2011-1489
`redhat`	low	—	https://access.redhat.com/security/cve/CVE-2011-1489
`ubuntu`	low	CVE-2011-1489 low priority: Ubuntu including 1 source packages (rsyslog), 13 status rows across 13 suites (hardy, lucid, maverick, natty, oneiric, precise, quantal, raring, saucy, trusty, upstream, utopic, vivid): not-affected 8, ignored 4, released 1.	https://ubuntu.com/security/CVE-2011-1489

Affected software / configurations for CVE-2011-1489

Vendor	Product	Version	Raw CPE
rsyslog	rsyslog	< 5.7.6	cpe:2.3:a:rsyslog:rsyslog::::::::
opensuse	opensuse	11.4	cpe:2.3:o:opensuse:opensuse:11.4:::::::*
debian	debian_linux	8.0	cpe:2.3:o:debian:debian_linux:8.0:::::::*
debian	debian_linux	9.0	cpe:2.3:o:debian:debian_linux:9.0:::::::*
debian	debian_linux	10.0	cpe:2.3:o:debian:debian_linux:10.0:::::::*

References for CVE-2011-1489

URL	Tags
http://lists.opensuse.org/opensuse-security-announce/2011-04/msg00005.html	Mailing List Third Party Advisory
https://access.redhat.com/security/cve/cve-2011-1489	Exploit Patch Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2011-1489	Issue Tracking Third Party Advisory
https://github.com/rsyslog/rsyslog/commit/1ef709cc97d54f74d3fdeb83788cc4b01f4c6a2a	Patch Third Party Advisory
https://security-tracker.debian.org/tracker/CVE-2011-1489	Third Party Advisory

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