fkie_cve-2020-7453
Vulnerability from fkie_nvd
Published
2020-04-29 00:15
Modified
2024-11-21 05:37
Severity ?
Summary
In FreeBSD 12.1-STABLE before r359021, 12.1-RELEASE before 12.1-RELEASE-p3, 11.3-STABLE before r359020, and 11.3-RELEASE before 11.3-RELEASE-p7, a missing null termination check in the jail_set configuration option "osrelease" may return more bytes with a subsequent jail_get system call allowing a malicious jail superuser with permission to create nested jails to read kernel memory.
References
| URL | Tags | ||
|---|---|---|---|
| secteam@freebsd.org | https://security.FreeBSD.org/advisories/FreeBSD-SA-20:08.jail.asc | Patch, Vendor Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://security.FreeBSD.org/advisories/FreeBSD-SA-20:08.jail.asc | Patch, Vendor Advisory |
Impacted products
{
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:freebsd:freebsd:11.3:-:*:*:*:*:*:*",
"matchCriteriaId": "F35957CE-AF9F-40CA-BDD1-FA6A0E73783F",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:freebsd:freebsd:11.3:p1:*:*:*:*:*:*",
"matchCriteriaId": "EA929713-B797-494A-853D-C121D9D69519",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:freebsd:freebsd:11.3:p2:*:*:*:*:*:*",
"matchCriteriaId": "3C3D8EDC-91D3-45B2-AC1D-EF4346D4A714",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:freebsd:freebsd:11.3:p3:*:*:*:*:*:*",
"matchCriteriaId": "EA5006FF-06A5-4D95-BF5B-29F26248D11F",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:freebsd:freebsd:11.3:p4:*:*:*:*:*:*",
"matchCriteriaId": "A705031B-FD63-4076-B92E-E826E11D7111",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:freebsd:freebsd:11.3:p5:*:*:*:*:*:*",
"matchCriteriaId": "11C1EFB1-68E5-45F4-A7E1-744574F290D1",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:freebsd:freebsd:11.3:p6:*:*:*:*:*:*",
"matchCriteriaId": "25F649A7-9265-4552-8934-BCE083363982",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:freebsd:freebsd:12.1:-:*:*:*:*:*:*",
"matchCriteriaId": "BD730B6A-F123-4685-ACB3-4F20AAAB77F3",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:freebsd:freebsd:12.1:p1:*:*:*:*:*:*",
"matchCriteriaId": "508150E3-2C0C-4EEB-BFC9-BB5CEB404C06",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:freebsd:freebsd:12.1:p2:*:*:*:*:*:*",
"matchCriteriaId": "B5D692EF-A5D7-430E-91BA-4CD137343B66",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In FreeBSD 12.1-STABLE before r359021, 12.1-RELEASE before 12.1-RELEASE-p3, 11.3-STABLE before r359020, and 11.3-RELEASE before 11.3-RELEASE-p7, a missing null termination check in the jail_set configuration option \"osrelease\" may return more bytes with a subsequent jail_get system call allowing a malicious jail superuser with permission to create nested jails to read kernel memory."
},
{
"lang": "es",
"value": "En FreeBSD versiones 12.1-ESTABLE anteriores a r359021, versiones 12.1-RELEASE anteriores a 12.1-RELEASE-p3, versiones 11.3-ESTABLE anteriores a r359020 y versiones 11.3-RELEASE anteriores a 11.3-RELEASE-p7, una falta de comprobaci\u00f3n de terminaci\u00f3n null en la opci\u00f3n de configuraci\u00f3n \"osrelease\" de jail_set puede devolver m\u00e1s bytes con una llamada posterior al sistema jail_get que permite a un superusuario de jaula (jail) malicioso con permiso para crear jaulas (jails) anidadas leer la memoria del kernel."
}
],
"id": "CVE-2020-7453",
"lastModified": "2024-11-21T05:37:10.490",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "LOW",
"cvssData": {
"accessComplexity": "MEDIUM",
"accessVector": "LOCAL",
"authentication": "NONE",
"availabilityImpact": "NONE",
"baseScore": 3.3,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "PARTIAL",
"vectorString": "AV:L/AC:M/Au:N/C:P/I:P/A:N",
"version": "2.0"
},
"exploitabilityScore": 3.4,
"impactScore": 4.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
],
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "NONE",
"baseScore": 6.0,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "HIGH",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N",
"version": "3.1"
},
"exploitabilityScore": 0.8,
"impactScore": 5.2,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2020-04-29T00:15:12.093",
"references": [
{
"source": "secteam@freebsd.org",
"tags": [
"Patch",
"Vendor Advisory"
],
"url": "https://security.FreeBSD.org/advisories/FreeBSD-SA-20:08.jail.asc"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch",
"Vendor Advisory"
],
"url": "https://security.FreeBSD.org/advisories/FreeBSD-SA-20:08.jail.asc"
}
],
"sourceIdentifier": "secteam@freebsd.org",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-754"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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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.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- 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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