gsd-2021-0920
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
In unix_scm_to_skb of af_unix.c, there is a possible use after free bug due to a race condition. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-196926917References: Upstream kernel
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2021-0920",
"description": "In unix_scm_to_skb of af_unix.c, there is a possible use after free bug due to a race condition. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-196926917References: Upstream kernel",
"id": "GSD-2021-0920",
"references": [
"https://www.suse.com/security/cve/CVE-2021-0920.html",
"https://access.redhat.com/errata/RHSA-2022:0777",
"https://access.redhat.com/errata/RHSA-2022:0772",
"https://access.redhat.com/errata/RHSA-2022:0771",
"https://access.redhat.com/errata/RHSA-2022:0636",
"https://access.redhat.com/errata/RHSA-2022:0629",
"https://access.redhat.com/errata/RHSA-2022:0622",
"https://access.redhat.com/errata/RHSA-2022:0620",
"https://access.redhat.com/errata/RHSA-2022:0592",
"https://access.redhat.com/errata/RHSA-2022:0590",
"https://access.redhat.com/errata/RHSA-2022:0825",
"https://access.redhat.com/errata/RHSA-2022:0823",
"https://access.redhat.com/errata/RHSA-2022:0819",
"https://access.redhat.com/errata/RHSA-2022:0958",
"https://access.redhat.com/errata/RHSA-2022:1103",
"https://access.redhat.com/errata/RHSA-2022:1104",
"https://access.redhat.com/errata/RHSA-2022:1106",
"https://access.redhat.com/errata/RHSA-2022:1107",
"https://ubuntu.com/security/CVE-2021-0920",
"https://access.redhat.com/errata/RHSA-2022:1263",
"https://access.redhat.com/errata/RHSA-2022:1324",
"https://access.redhat.com/errata/RHSA-2022:1373",
"https://access.redhat.com/errata/RHSA-2022:1417",
"https://linux.oracle.com/cve/CVE-2021-0920.html",
"https://access.redhat.com/errata/RHSA-2022:0841",
"https://access.redhat.com/errata/RHSA-2022:0849",
"https://access.redhat.com/errata/RHSA-2022:0851"
]
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
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],
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"id": "GSD-2021-0920",
"modified": "2023-12-13T01:23:07.495264Z",
"schema_version": "1.4.0"
}
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"value": "In unix_scm_to_skb of af_unix.c, there is a possible use after free bug due to a race condition. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-196926917References: Upstream kernel"
}
]
},
"problemtype": {
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"description": [
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"lang": "eng",
"value": "Elevation of privilege"
}
]
}
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},
"references": {
"reference_data": [
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"name": "https://source.android.com/security/bulletin/2021-11-01",
"refsource": "MISC",
"url": "https://source.android.com/security/bulletin/2021-11-01"
},
{
"name": "[debian-lts-announce] 20211216 [SECURITY] [DLA 2843-1] linux security update",
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"url": "https://lists.debian.org/debian-lts-announce/2021/12/msg00012.html"
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"cisaExploitAdd": "2022-05-23",
"cisaRequiredAction": "Apply updates per vendor instructions.",
"cisaVulnerabilityName": "Android Kernel Race Condition Vulnerability",
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"value": "In unix_scm_to_skb of af_unix.c, there is a possible use after free bug due to a race condition. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-196926917References: Upstream kernel"
},
{
"lang": "es",
"value": "En la funci\u00f3n unix_scm_to_skb del archivo af_unix.c, se presenta un posible error de uso de memoria previamente liberada debido a una condici\u00f3n de carrera. Esto podr\u00eda conllevar a una escalada local de privilegios con los privilegios de ejecuci\u00f3n System requeridos. No es requerida una interacci\u00f3n del usuario para su explotaci\u00f3n. Producto: Android. Versiones: Android kernel. ID de Android: A-196926917 Referencias: Kernel ascendente"
}
],
"id": "CVE-2021-0920",
"lastModified": "2024-02-02T16:46:32.023",
"metrics": {
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"vectorString": "AV:L/AC:M/Au:N/C:C/I:C/A:C",
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"published": "2021-12-15T19:15:11.017",
"references": [
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"source": "security@android.com",
"tags": [
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"url": "https://lists.debian.org/debian-lts-announce/2021/12/msg00012.html"
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"vulnStatus": "Analyzed",
"weaknesses": [
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"value": "CWE-362"
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"source": "nvd@nist.gov",
"type": "Primary"
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}
}
}
}
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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.