gsd-2018-11796
Vulnerability from gsd
Modified
2023-12-13 01:22
Details
In Apache Tika 1.19 (CVE-2018-11761), we added an entity expansion limit for XML parsing. However, Tika reuses SAXParsers and calls reset() after each parse, which, for Xerces2 parsers, as per the documentation, removes the user-specified SecurityManager and thus removes entity expansion limits after the first parse. Apache Tika versions from 0.1 to 1.19 are therefore still vulnerable to entity expansions which can lead to a denial of service attack. Users should upgrade to 1.19.1 or later.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2018-11796",
"description": "In Apache Tika 1.19 (CVE-2018-11761), we added an entity expansion limit for XML parsing. However, Tika reuses SAXParsers and calls reset() after each parse, which, for Xerces2 parsers, as per the documentation, removes the user-specified SecurityManager and thus removes entity expansion limits after the first parse. Apache Tika versions from 0.1 to 1.19 are therefore still vulnerable to entity expansions which can lead to a denial of service attack. Users should upgrade to 1.19.1 or later.",
"id": "GSD-2018-11796",
"references": [
"https://www.suse.com/security/cve/CVE-2018-11796.html",
"https://access.redhat.com/errata/RHSA-2019:3892"
]
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
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"id": "GSD-2018-11796",
"modified": "2023-12-13T01:22:42.711287Z",
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}
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"gitlab.com": {
"advisories": [
{
"affected_range": "[0.1,1.19.1)",
"affected_versions": "All versions starting from 0.1 before 1.19.1",
"cvss_v2": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
"cvss_v3": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"cwe_ids": [
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"CWE-611",
"CWE-937"
],
"date": "2021-09-14",
"description": "In Apache Tika 1.19 (CVE-2018-11761), we added an entity expansion limit for XML parsing. However, Tika reuses SAXParsers and calls reset() after each parse, which, for Xerces2 parsers, as per the documentation, removes the user-specified SecurityManager and thus removes entity expansion limits after the first parse. Apache Tika versions from 0.1 to 1.19 are therefore still vulnerable to entity expansions which can lead to a denial of service attack. Users should upgrade to 1.19.1 or later.",
"fixed_versions": [
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"identifier": "CVE-2018-11796",
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"package_slug": "maven/org.apache.tika/tika-core",
"pubdate": "2018-10-17",
"solution": "Upgrade to version 1.19.1 or above.",
"title": "Improper Restriction of XML External Entity Reference",
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"cwe_ids": [
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"CWE-611",
"CWE-937"
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"date": "2019-09-03",
"description": "Tika reuses SAXParsers and calls `reset()` after each parse; the parser ignores entity expansion limits after the first parse.",
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],
"identifier": "CVE-2018-11796",
"identifiers": [
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"not_impacted": "All versions before 0.1, all versions after 1.19",
"package_slug": "maven/org.apache.tika/tika-parsers",
"pubdate": "2018-10-09",
"solution": "Upgrade to version 1.19.1 or above.",
"title": "Improper Restriction of XML External Entity Reference",
"urls": [
"https://nvd.nist.gov/vuln/detail/CVE-2018-11796",
"http://www.securityfocus.com/bid/105585"
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"uuid": "bd35d02a-2d17-4993-96a5-c0545f89b747"
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"versionStartIncluding": "0.1",
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"impact": {
"baseMetricV2": {
"acInsufInfo": false,
"cvssV2": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 5.0,
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
"version": "2.0"
},
"exploitabilityScore": 10.0,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"severity": "MEDIUM",
"userInteractionRequired": false
},
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"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.0"
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"exploitabilityScore": 3.9,
"impactScore": 3.6
}
},
"lastModifiedDate": "2019-09-03T18:15Z",
"publishedDate": "2018-10-09T22:29Z"
}
}
}
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- 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.