gsd-2019-3863
Vulnerability from gsd
Modified
2023-12-13 01:24
Details
A flaw was found in libssh2 before 1.8.1. A server could send a multiple keyboard interactive response messages whose total length are greater than unsigned char max characters. This value is used as an index to copy memory causing in an out of bounds memory write error.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2019-3863",
"description": "A flaw was found in libssh2 before 1.8.1. A server could send a multiple keyboard interactive response messages whose total length are greater than unsigned char max characters. This value is used as an index to copy memory causing in an out of bounds memory write error.",
"id": "GSD-2019-3863",
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"https://www.debian.org/security/2019/dsa-4431",
"https://access.redhat.com/errata/RHSA-2019:2399",
"https://access.redhat.com/errata/RHSA-2019:1943",
"https://access.redhat.com/errata/RHSA-2019:1791",
"https://access.redhat.com/errata/RHSA-2019:1652",
"https://access.redhat.com/errata/RHSA-2019:1175",
"https://access.redhat.com/errata/RHSA-2019:0679",
"https://advisories.mageia.org/CVE-2019-3863.html",
"https://security.archlinux.org/CVE-2019-3863",
"https://alas.aws.amazon.com/cve/html/CVE-2019-3863.html",
"https://linux.oracle.com/cve/CVE-2019-3863.html",
"https://ubuntu.com/security/CVE-2019-3863"
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},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
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"cwe_ids": [
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"date": "2019-05-14",
"description": "A flaw was found in libssh2 A server could send a multiple keyboard interactive response messages whose total length are greater than unsigned char max characters. This value is used as an index to copy memory causing in an out-of-bounds memory write error.",
"fixed_versions": [
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"identifier": "CVE-2019-3863",
"identifiers": [
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"not_impacted": "All versions starting from 1.8.1",
"package_slug": "nuget/libssh2-vc141_xp",
"pubdate": "2019-03-25",
"solution": "Upgrade to version 1.8.2 or above.",
"title": "Out-of-bounds Write",
"urls": [
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"uuid": "a690dc30-a3ca-4629-b6f3-28b9f20d42cc"
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"impact": {
"baseMetricV2": {
"acInsufInfo": false,
"cvssV2": {
"accessComplexity": "MEDIUM",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 6.8,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "PARTIAL",
"vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
"version": "2.0"
},
"exploitabilityScore": 8.6,
"impactScore": 6.4,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"severity": "MEDIUM",
"userInteractionRequired": true
},
"baseMetricV3": {
"cvssV3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"version": "3.0"
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"exploitabilityScore": 2.8,
"impactScore": 5.9
}
},
"lastModifiedDate": "2019-05-14T21:29Z",
"publishedDate": "2019-03-25T18:29Z"
}
}
}
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