fkie_cve-2018-20843
Vulnerability from fkie_nvd
Published
2019-06-24 17:15
Modified
2025-05-30 20:15
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
In libexpat in Expat before 2.2.7, XML input including XML names that contain a large number of colons could make the XML parser consume a high amount of RAM and CPU resources while processing (enough to be usable for denial-of-service attacks).
References
Impacted products
Vendor | Product | Version | |
---|---|---|---|
libexpat_project | libexpat | * | |
canonical | ubuntu_linux | 12.04 | |
canonical | ubuntu_linux | 14.04 | |
canonical | ubuntu_linux | 16.04 | |
canonical | ubuntu_linux | 18.04 | |
canonical | ubuntu_linux | 18.10 | |
canonical | ubuntu_linux | 19.04 | |
debian | debian_linux | 8.0 | |
debian | debian_linux | 9.0 | |
fedoraproject | fedora | 29 | |
fedoraproject | fedora | 30 | |
opensuse | leap | 15.0 | |
opensuse | leap | 15.1 | |
oracle | hospitality_res_3700 | * | |
oracle | http_server | 12.1.3.0 | |
oracle | http_server | 12.2.1.4.0 | |
oracle | outside_in_technology | 8.5.4 | |
oracle | outside_in_technology | 8.5.5 | |
tenable | nessus | * |
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}, { "nodes": [ { "cpeMatch": [ { "criteria": "cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:*", "matchCriteriaId": "F1E78106-58E6-4D59-990F-75DA575BFAD9", "vulnerable": true }, { "criteria": "cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*", "matchCriteriaId": "B620311B-34A3-48A6-82DF-6F078D7A4493", "vulnerable": true } ], "negate": false, "operator": "OR" } ] }, { "nodes": [ { "cpeMatch": [ { "criteria": "cpe:2.3:a:oracle:hospitality_res_3700:*:*:*:*:*:*:*:*", "matchCriteriaId": "CF89FEEE-C473-42D7-9F68-602792BF729B", "versionEndIncluding": "5.7.6", "versionStartIncluding": "5.7", "vulnerable": true }, { "criteria": "cpe:2.3:a:oracle:http_server:12.1.3.0:*:*:*:*:*:*:*", "matchCriteriaId": "DD4552F9-F5B9-4A52-BA5C-D32D49FABD28", "vulnerable": true }, { "criteria": "cpe:2.3:a:oracle:http_server:12.2.1.4.0:*:*:*:*:*:*:*", "matchCriteriaId": "AD04BEE5-E9A8-4584-A68C-0195CE9C402C", "vulnerable": true }, { "criteria": "cpe:2.3:a:oracle:outside_in_technology:8.5.4:*:*:*:*:*:*:*", "matchCriteriaId": "72F1A960-EBA5-4BDB-B629-20F0D2384562", "vulnerable": true }, { "criteria": "cpe:2.3:a:oracle:outside_in_technology:8.5.5:*:*:*:*:*:*:*", "matchCriteriaId": "3198F822-43F8-4CB3-97F7-C2982FDA5CBD", "vulnerable": true } ], "negate": false, "operator": "OR" } ] }, { "nodes": [ { "cpeMatch": [ { "criteria": "cpe:2.3:a:tenable:nessus:*:*:*:*:*:*:*:*", "matchCriteriaId": "D03C75BD-A1EA-4BF3-8C18-17EB3403C004", "versionEndExcluding": "8.15.0", "vulnerable": true } ], "negate": false, "operator": "OR" } ] } ], "cveTags": [], "descriptions": [ { "lang": "en", "value": "In libexpat in Expat before 2.2.7, XML input including XML names that contain a large number of colons could make the XML parser consume a high amount of RAM and CPU resources while processing (enough to be usable for denial-of-service attacks)." }, { "lang": "es", "value": "En libexpat en Expat anterior a versi\u00f3n 2.2.7, una entrada XML incluyendo nombres XML que contienen una gran cantidad de \"dos puntos\", podr\u00eda hacer que el analizador XML consuma una gran cantidad de recursos de RAM y CPU durante el procesamiento (lo suficiente como para ser utilizables en ataques de denegaci\u00f3n de servicio) ." } ], "id": "CVE-2018-20843", "lastModified": "2025-05-30T20:15:20.570", "metrics": { "cvssMetricV2": [ { "acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": { "accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "COMPLETE", "baseScore": 7.8, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:C", "version": "2.0" }, "exploitabilityScore": 10.0, "impactScore": 6.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false } ], "cvssMetricV31": [ { "cvssData": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1" }, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary" }, { "cvssData": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1" }, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary" } ] }, "published": "2019-06-24T17:15:09.980", "references": [ { "source": "cve@mitre.org", "tags": [ "Mailing List", "Third Party Advisory" ], "url": "http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00039.html" }, { "source": "cve@mitre.org", "tags": [ "Issue Tracking", "Third Party Advisory" ], "url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=5226" }, { "source": "cve@mitre.org", "tags": [ "Release Notes", "Third Party Advisory" ], "url": "https://github.com/libexpat/libexpat/blob/R_2_2_7/expat/Changes" }, { "source": "cve@mitre.org", "tags": [ "Issue Tracking", "Patch", "Third Party Advisory" ], "url": "https://github.com/libexpat/libexpat/issues/186" }, { "source": "cve@mitre.org", "tags": [ "Exploit", "Patch", "Third Party Advisory" ], "url": "https://github.com/libexpat/libexpat/pull/262" }, { "source": "cve@mitre.org", "tags": [ "Patch", "Third Party Advisory" ], "url": "https://github.com/libexpat/libexpat/pull/262/commits/11f8838bf99ea0a6f0b76f9760c43704d00c4ff6" }, { "source": "cve@mitre.org", "tags": [ "Mailing List", "Third Party Advisory" ], "url": "https://lists.debian.org/debian-lts-announce/2019/06/msg00028.html" }, { "source": "cve@mitre.org", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CEJJSQSG3KSUQY4FPVHZ7ZTT7FORMFVD/" }, { "source": "cve@mitre.org", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IDAUGEB3TUP6NEKJDBUBZX7N5OAUOOOK/" }, { "source": "cve@mitre.org", "tags": [ "Mailing List", "Third Party Advisory" ], "url": "https://seclists.org/bugtraq/2019/Jun/39" }, { "source": "cve@mitre.org", "tags": [ "Third Party Advisory" ], "url": "https://security.gentoo.org/glsa/201911-08" }, { "source": "cve@mitre.org", "tags": [ "Third Party Advisory" ], "url": "https://security.netapp.com/advisory/ntap-20190703-0001/" }, { "source": "cve@mitre.org", "tags": [ "Third Party Advisory" ], "url": "https://support.f5.com/csp/article/K51011533" }, { "source": "cve@mitre.org", "tags": [ "Third Party Advisory" ], "url": "https://usn.ubuntu.com/4040-1/" }, { "source": "cve@mitre.org", "tags": [ "Third Party Advisory" ], "url": "https://usn.ubuntu.com/4040-2/" }, { "source": "cve@mitre.org", "tags": [ "Third Party Advisory" ], "url": "https://www.debian.org/security/2019/dsa-4472" }, { "source": "cve@mitre.org", "tags": [ "Patch", "Third Party Advisory" ], "url": "https://www.oracle.com/security-alerts/cpuApr2021.html" }, { "source": "cve@mitre.org", "tags": [ "Patch", "Third Party Advisory" ], "url": "https://www.oracle.com/security-alerts/cpuapr2020.html" }, { "source": "cve@mitre.org", "tags": [ "Patch", "Third Party Advisory" ], "url": "https://www.oracle.com/security-alerts/cpuoct2020.html" }, { "source": "cve@mitre.org", "tags": [ "Patch", "Third Party Advisory" ], "url": "https://www.oracle.com/security-alerts/cpuoct2021.html" }, { "source": "cve@mitre.org", "tags": [ "Third Party Advisory" ], "url": "https://www.tenable.com/security/tns-2021-11" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Mailing List", "Third Party Advisory" ], "url": "http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00039.html" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Issue Tracking", "Third Party Advisory" ], "url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=5226" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Release Notes", "Third Party Advisory" ], "url": "https://github.com/libexpat/libexpat/blob/R_2_2_7/expat/Changes" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Issue Tracking", "Patch", "Third Party Advisory" ], "url": "https://github.com/libexpat/libexpat/issues/186" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Exploit", "Patch", "Third Party Advisory" ], "url": "https://github.com/libexpat/libexpat/pull/262" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Patch", "Third Party Advisory" ], "url": "https://github.com/libexpat/libexpat/pull/262/commits/11f8838bf99ea0a6f0b76f9760c43704d00c4ff6" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Mailing List", "Third Party Advisory" ], "url": "https://lists.debian.org/debian-lts-announce/2019/06/msg00028.html" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CEJJSQSG3KSUQY4FPVHZ7ZTT7FORMFVD/" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IDAUGEB3TUP6NEKJDBUBZX7N5OAUOOOK/" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Mailing List", "Third Party Advisory" ], "url": "https://seclists.org/bugtraq/2019/Jun/39" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Third Party Advisory" ], "url": "https://security.gentoo.org/glsa/201911-08" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Third Party Advisory" ], "url": "https://security.netapp.com/advisory/ntap-20190703-0001/" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Third Party Advisory" ], "url": "https://support.f5.com/csp/article/K51011533" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Third Party Advisory" ], "url": "https://usn.ubuntu.com/4040-1/" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Third Party Advisory" ], "url": "https://usn.ubuntu.com/4040-2/" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Third Party Advisory" ], "url": "https://www.debian.org/security/2019/dsa-4472" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Patch", "Third Party Advisory" ], "url": "https://www.oracle.com/security-alerts/cpuApr2021.html" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Patch", "Third Party Advisory" ], "url": "https://www.oracle.com/security-alerts/cpuapr2020.html" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Patch", "Third Party Advisory" ], "url": "https://www.oracle.com/security-alerts/cpuoct2020.html" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Patch", "Third Party Advisory" ], "url": "https://www.oracle.com/security-alerts/cpuoct2021.html" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Third Party Advisory" ], "url": "https://www.tenable.com/security/tns-2021-11" } ], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [ { "description": [ { "lang": "en", "value": "CWE-611" } ], "source": "nvd@nist.gov", "type": "Primary" }, { "description": [ { "lang": "en", "value": "CWE-611" } ], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary" } ] }
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Sightings
Author | Source | Type | Date |
---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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