CVE-2011-3200
Estado: ModificadaMedia (5)—
Stack-based buffer overflow in the parseLegacySyslogMsg function in tools/syslogd.c in rsyslogd in rsyslog 4.6.x before 4.6.8 and 5.2.0 through 5.8.4 might allow remote attackers to cause a denial of service (application exit) via a long TAG in a legacy syslog message.
CVSS
- Versión: 2.0
- Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P
- Puntuación base: 5
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 21%
- Percentil entre todas las CVEs puntuadas: 97
- Fecha de la puntuación: 4/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
Tecnologías afectadas (1)
CWE
- CWE-119
Referencias
- http://git.adiscon.com/?p=rsyslog.git%3Ba=commit%3Bh=1ca6cc236d1dabf1633238b873fb1c057e52f95e
- http://lists.fedoraproject.org/pipermail/package-announce/2011-September/065837.html
- http://lists.fedoraproject.org/pipermail/package-announce/2011-September/065941.html
- http://lists.opensuse.org/opensuse-updates/2011-09/msg00013.html
- http://secunia.com/advisories/45922
- http://secunia.com/advisories/46027
- http://securitytracker.com/id?1026000
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:134
- http://www.redhat.com/support/errata/RHSA-2011-1247.html
- http://www.rsyslog.com/potential-dos-with-malformed-tag/
- http://www.securityfocus.com/bid/49413
- https://bugzilla.redhat.com/show_bug.cgi?id=727644
- http://git.adiscon.com/?p=rsyslog.git%3Ba=commit%3Bh=1ca6cc236d1dabf1633238b873fb1c057e52f95e
- http://lists.fedoraproject.org/pipermail/package-announce/2011-September/065837.html
- http://lists.fedoraproject.org/pipermail/package-announce/2011-September/065941.html
- http://lists.opensuse.org/opensuse-updates/2011-09/msg00013.html
- http://secunia.com/advisories/45922
- http://secunia.com/advisories/46027
- http://securitytracker.com/id?1026000
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:134
- http://www.redhat.com/support/errata/RHSA-2011-1247.html
- http://www.rsyslog.com/potential-dos-with-malformed-tag/
- http://www.securityfocus.com/bid/49413
- https://bugzilla.redhat.com/show_bug.cgi?id=727644
JSON original (NVD)
Mostrar
{
"id": "CVE-2011-3200",
"cveTags": [],
"metrics": {
"cvssMetricV2": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"version": "2.0",
"baseScore": 5,
"accessVector": "NETWORK",
"vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
"authentication": "NONE",
"integrityImpact": "NONE",
"accessComplexity": "LOW",
"availabilityImpact": "PARTIAL",
"confidentialityImpact": "NONE"
},
"acInsufInfo": false,
"impactScore": 2.9,
"baseSeverity": "MEDIUM",
"obtainAllPrivilege": false,
"exploitabilityScore": 10,
"obtainUserPrivilege": false,
"obtainOtherPrivilege": false,
"userInteractionRequired": false
}
]
},
"affected": [
{
"source": "secalert@redhat.com",
"affectedData": [
{
"vendor": "n/a",
"product": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
]
}
],
"published": "2011-09-06T16:55:10.837",
"references": [
{
"url": "http://git.adiscon.com/?p=rsyslog.git%3Ba=commit%3Bh=1ca6cc236d1dabf1633238b873fb1c057e52f95e",
"source": "secalert@redhat.com"
},
{
"url": "http://lists.fedoraproject.org/pipermail/package-announce/2011-September/065837.html",
"source": "secalert@redhat.com"
},
{
"url": "http://lists.fedoraproject.org/pipermail/package-announce/2011-September/065941.html",
"source": "secalert@redhat.com"
},
{
"url": "http://lists.opensuse.org/opensuse-updates/2011-09/msg00013.html",
"source": "secalert@redhat.com"
},
{
"url": "http://secunia.com/advisories/45922",
"source": "secalert@redhat.com"
},
{
"url": "http://secunia.com/advisories/46027",
"source": "secalert@redhat.com"
},
{
"url": "http://securitytracker.com/id?1026000",
"source": "secalert@redhat.com"
},
{
"url": "http://www.mandriva.com/security/advisories?name=MDVSA-2011:134",
"source": "secalert@redhat.com"
},
{
"url": "http://www.redhat.com/support/errata/RHSA-2011-1247.html",
"source": "secalert@redhat.com"
},
{
"url": "http://www.rsyslog.com/potential-dos-with-malformed-tag/",
"tags": [
"Patch",
"Vendor Advisory"
],
"source": "secalert@redhat.com"
},
{
"url": "http://www.securityfocus.com/bid/49413",
"source": "secalert@redhat.com"
},
{
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=727644",
"tags": [
"Patch"
],
"source": "secalert@redhat.com"
},
{
"url": "http://git.adiscon.com/?p=rsyslog.git%3Ba=commit%3Bh=1ca6cc236d1dabf1633238b873fb1c057e52f95e",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "http://lists.fedoraproject.org/pipermail/package-announce/2011-September/065837.html",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "http://lists.fedoraproject.org/pipermail/package-announce/2011-September/065941.html",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "http://lists.opensuse.org/opensuse-updates/2011-09/msg00013.html",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "http://secunia.com/advisories/45922",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "http://secunia.com/advisories/46027",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "http://securitytracker.com/id?1026000",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "http://www.mandriva.com/security/advisories?name=MDVSA-2011:134",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "http://www.redhat.com/support/errata/RHSA-2011-1247.html",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "http://www.rsyslog.com/potential-dos-with-malformed-tag/",
"tags": [
"Patch",
"Vendor Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "http://www.securityfocus.com/bid/49413",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=727644",
"tags": [
"Patch"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
],
"vulnStatus": "Modified",
"weaknesses": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "CWE-119"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Stack-based buffer overflow in the parseLegacySyslogMsg function in tools/syslogd.c in rsyslogd in rsyslog 4.6.x before 4.6.8 and 5.2.0 through 5.8.4 might allow remote attackers to cause a denial of service (application exit) via a long TAG in a legacy syslog message."
},
{
"lang": "es",
"value": "Un desbordamiento de búfer basado en la pila en la función parseLegacySyslogMsg en tools/syslogd.c en rsyslogd en rsyslog v4.6.x antes de v4.6.8 y v5.2.0 hasta la v5.8.4 podría permitir a atacantes remotos provocar una denegación de servicio (salida de la aplicación) a través de un TAG demasiado largo en un mensaje de syslog antiguo."
}
],
"lastModified": "2026-06-16T23:32:51.890",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:rsyslog:rsyslog:4.6.0:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "C189E19A-16F3-40C9-B480-58013C5ED16D"
},
{
"criteria": "cpe:2.3:a:rsyslog:rsyslog:4.6.1:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "E0839E9A-147E-4297-AE06-34AC67471001"
},
{
"criteria": "cpe:2.3:a:rsyslog:rsyslog:4.6.2:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "5A7D9B57-777D-4B0F-BFD0-2642064FFBFA"
},
{
"criteria": "cpe:2.3:a:rsyslog:rsyslog:4.6.3:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "654A4E45-2E4D-420D-8653-B03240ED4A88"
},
{
"criteria": "cpe:2.3:a:rsyslog:rsyslog:4.6.4:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "CF03E62D-026D-4C33-BB0D-9D5B788DC5C6"
},
{
"criteria": "cpe:2.3:a:rsyslog:rsyslog:4.6.5:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "32DE7607-0082-4013-812B-0777C23BA1AC"
},
{
"criteria": "cpe:2.3:a:rsyslog:rsyslog:4.6.6:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "C19BCBF2-09C1-4B2E-90C0-44086BCF5643"
},
{
"criteria": "cpe:2.3:a:rsyslog:rsyslog:4.6.7:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "C8C0123D-3D76-418D-BE38-00C10F147DA3"
}
],
"operator": "OR"
}
]
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:rsyslog:rsyslog:5.2.0:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "6E8B8362-FB8A-47E0-AC3D-DC6A1138758D"
},
{
"criteria": "cpe:2.3:a:rsyslog:rsyslog:5.2.1:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "72D612FA-5842-400D-AADA-D2CFF3A9C2B9"
},
{
"criteria": "cpe:2.3:a:rsyslog:rsyslog:5.2.2:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "41A66E91-25CA-48D9-9876-B7BF59E24002"
},
{
"criteria": "cpe:2.3:a:rsyslog:rsyslog:5.3.1:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "52FD86EF-92A1-4FB4-9EC1-E6DFBD93499B"
},
{
"criteria": "cpe:2.3:a:rsyslog:rsyslog:5.3.2:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "AC62EFFF-52BB-4B75-811B-90FABA83FF33"
},
{
"criteria": "cpe:2.3:a:rsyslog:rsyslog:5.3.3:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "31115B81-97B1-49DB-B524-1F3234F3B999"
},
{
"criteria": "cpe:2.3:a:rsyslog:rsyslog:5.3.4:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "4F28E8B1-0266-4498-B255-A05B7FE22F84"
},
{
"criteria": "cpe:2.3:a:rsyslog:rsyslog:5.3.5:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "E4CECA40-8267-4791-90B2-06311D33D73C"
},
{
"criteria": "cpe:2.3:a:rsyslog:rsyslog:5.3.6:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "298BE072-6C64-4AB4-AE92-16C6ADD3B7E3"
},
{
"criteria": "cpe:2.3:a:rsyslog:rsyslog:5.3.7:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "4338B0BD-6F52-405B-AED9-2ED2B4B50AC5"
},
{
"criteria": "cpe:2.3:a:rsyslog:rsyslog:5.4.0:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "0E9CDDD7-F22B-4980-BD0A-7F91E9B9D384"
},
{
"criteria": "cpe:2.3:a:rsyslog:rsyslog:5.4.1:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "4CE7FF76-4F5E-4D0E-AF9A-8579C93FA472"
},
{
"criteria": "cpe:2.3:a:rsyslog:rsyslog:5.4.2:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "3AF97FDB-8862-44BA-9732-15191AC8181E"
},
{
"criteria": "cpe:2.3:a:rsyslog:rsyslog:5.5.0:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "962616FC-9BB4-4978-8011-6084931A2CD0"
},
{
"criteria": "cpe:2.3:a:rsyslog:rsyslog:5.5.1:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "83F00805-390F-4736-894E-1F5CEB1F1629"
},
{
"criteria": "cpe:2.3:a:rsyslog:rsyslog:5.5.2:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "4DB45F90-FD8E-4ABA-8C26-D3A49CA684D5"
},
{
"criteria": "cpe:2.3:a:rsyslog:rsyslog:5.5.3:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "E0ED3A21-75EF-438C-AC9E-1CA67985DC46"
},
{
"criteria": "cpe:2.3:a:rsyslog:rsyslog:5.5.4:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "5CF11421-19E4-4DE4-849E-96BC2045CEEB"
},
{
"criteria": "cpe:2.3:a:rsyslog:rsyslog:5.5.5:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "F98CEA8A-814C-4812-9E10-874CB0967303"
},
{
"criteria": "cpe:2.3:a:rsyslog:rsyslog:5.5.6:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "2F5141AA-FE13-4AE7-9F5A-873CDFDA5B2D"
},
{
"criteria": "cpe:2.3:a:rsyslog:rsyslog:5.5.7:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "2E985BF5-8B9E-45C1-ADC1-B5F964EABD5B"
},
{
"criteria": "cpe:2.3:a:rsyslog:rsyslog:5.6.0:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "EE7EC105-0E13-4D47-9D0A-315013657DA8"
},
{
"criteria": "cpe:2.3:a:rsyslog:rsyslog:5.6.1:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "E0244736-F857-4A74-84E4-BB7F591CE7F5"
},
{
"criteria": "cpe:2.3:a:rsyslog:rsyslog:5.6.2:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "3607C1AE-E3C8-4786-8EEE-0B1D1A9B098C"
},
{
"criteria": "cpe:2.3:a:rsyslog:rsyslog:5.6.3:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "2D28F99E-27B8-47F8-981A-5D9E38BEADE5"
},
{
"criteria": "cpe:2.3:a:rsyslog:rsyslog:5.6.4:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "6BA11F46-D8FE-44BD-B792-A78800AC46A5"
},
{
"criteria": "cpe:2.3:a:rsyslog:rsyslog:5.6.5:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "A1FC9D6A-3E72-4E93-8EC7-A82A24F3E73E"
},
{
"criteria": "cpe:2.3:a:rsyslog:rsyslog:5.7.0:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "4C0FAF7B-3BDB-4048-9040-B65145CA0267"
},
{
"criteria": "cpe:2.3:a:rsyslog:rsyslog:5.7.1:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "995DAD4E-7B30-474C-A06C-4D5AA57071C1"
},
{
"criteria": "cpe:2.3:a:rsyslog:rsyslog:5.7.2:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "A0107C61-B60E-4BC9-8D97-D1CB02B37F77"
},
{
"criteria": "cpe:2.3:a:rsyslog:rsyslog:5.7.3:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "218031FE-C023-4637-B4CA-EC2B7633D84E"
},
{
"criteria": "cpe:2.3:a:rsyslog:rsyslog:5.7.4:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "C9DF6D59-AC76-4C98-A878-B618CEE59E6E"
},
{
"criteria": "cpe:2.3:a:rsyslog:rsyslog:5.7.5:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "826FCA60-5D6D-4606-9024-E005C6FA6170"
},
{
"criteria": "cpe:2.3:a:rsyslog:rsyslog:5.7.6:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "BE08A955-0416-41AF-AFD4-8E065A1E1A9A"
},
{
"criteria": "cpe:2.3:a:rsyslog:rsyslog:5.7.7:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "E6BA5F54-DAFC-48DA-BFD6-EB1414F55391"
},
{
"criteria": "cpe:2.3:a:rsyslog:rsyslog:5.7.8:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "2ADD25C5-1729-4C06-BCC5-27A99A665E51"
},
{
"criteria": "cpe:2.3:a:rsyslog:rsyslog:5.7.9:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "16EACD36-04B0-4D5F-B7E3-E625CCE445E5"
},
{
"criteria": "cpe:2.3:a:rsyslog:rsyslog:5.7.10:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "91B8BDF5-7427-4421-8E66-568FC2FC2EEB"
},
{
"criteria": "cpe:2.3:a:rsyslog:rsyslog:5.8.0:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "EB647DD4-31EC-40E5-B9A7-73A6C213D3B8"
},
{
"criteria": "cpe:2.3:a:rsyslog:rsyslog:5.8.1:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "2CA66A00-FB7A-4040-B8FC-9B6C48357C7B"
},
{
"criteria": "cpe:2.3:a:rsyslog:rsyslog:5.8.2:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "C1EEEC6D-C50B-4C40-83E1-A8FBD813CB04"
},
{
"criteria": "cpe:2.3:a:rsyslog:rsyslog:5.8.3:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "4F12BBF6-985F-4A29-9968-CFE440885BB4"
},
{
"criteria": "cpe:2.3:a:rsyslog:rsyslog:5.8.4:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "ABE8ABAF-41AA-43D9-B72B-57C27059C2C4"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "secalert@redhat.com"
}