rsyslog — security advisory
A memory leak in rsyslog before 5.7.6 was found in the way deamon processed log messages are 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
- Products
- rsyslog
- Affected versions
- Not specified
- Fixed versions
- 5.7.6-1
- CVEs
- CVE-2011-1490
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 00:00 UTC · Revision 1
Source evidence
A memory leak in rsyslog before 5.7.6 was found in the way deamon processed log messages are 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
osv:DEBIAN-CVE-2011-1490
rsyslog
Fixed versions: 5.7.6-1
rsyslog
Fixed versions: 5.7.6-1
rsyslog
Fixed versions: 5.7.6-1
Complete source record
{
"id": "3572ae6df19983f8df5e01deac7d70a6ed292bc61af40b9876585e96de0a216c",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2011-1490",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2011-1490",
"summary": "A memory leak in rsyslog before 5.7.6 was found in the way deamon processed log messages are 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",
"evidence": "osv:DEBIAN-CVE-2011-1490",
"products": [
{
"name": {
"value": "rsyslog",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "5.7.6-1",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "rsyslog",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "5.7.6-1",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "rsyslog",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "5.7.6-1",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
}
],
"severity": "medium",
"structured": {
"id": "DEBIAN-CVE-2011-1490",
"aliases": [
"DEBIAN-CVE-2011-1490"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "5.7.6-1"
}
]
}
],
"package": {
"name": "rsyslog",
"purl": "pkg:deb/debian/rsyslog?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2011-1490.json"
},
"ecosystem_specific": {
"urgency": "low"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "5.7.6-1"
}
]
}
],
"package": {
"name": "rsyslog",
"purl": "pkg:deb/debian/rsyslog?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2011-1490.json"
},
"ecosystem_specific": {
"urgency": "low"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "5.7.6-1"
}
]
}
],
"package": {
"name": "rsyslog",
"purl": "pkg:deb/debian/rsyslog?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2011-1490.json"
},
"ecosystem_specific": {
"urgency": "low"
}
}
],
"modified": "2026-10-23T18:02:45.891406725Z",
"provider": "osv",
"upstream": [
"CVE-2011-1490"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2011-1490"
]
},
"related_cves": [
{
"value": "CVE-2011-1490",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 419667,
"published_at": "2019-11-14T02:15:10.843+00:00"
}