gsd-2021-20197
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
There is an open race window when writing output in the following utilities in GNU binutils version 2.35 and earlier:ar, objcopy, strip, ranlib. When these utilities are run as a privileged user (presumably as part of a script updating binaries across different users), an unprivileged user can trick these utilities into getting ownership of arbitrary files through a symlink.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2021-20197",
"description": "There is an open race window when writing output in the following utilities in GNU binutils version 2.35 and earlier:ar, objcopy, strip, ranlib. When these utilities are run as a privileged user (presumably as part of a script updating binaries across different users), an unprivileged user can trick these utilities into getting ownership of arbitrary files through a symlink.",
"id": "GSD-2021-20197",
"references": [
"https://www.suse.com/security/cve/CVE-2021-20197.html",
"https://access.redhat.com/errata/RHSA-2021:4364",
"https://advisories.mageia.org/CVE-2021-20197.html",
"https://security.archlinux.org/CVE-2021-20197",
"https://linux.oracle.com/cve/CVE-2021-20197.html"
]
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
"aliases": [
"CVE-2021-20197"
],
"details": "There is an open race window when writing output in the following utilities in GNU binutils version 2.35 and earlier:ar, objcopy, strip, ranlib. When these utilities are run as a privileged user (presumably as part of a script updating binaries across different users), an unprivileged user can trick these utilities into getting ownership of arbitrary files through a symlink.",
"id": "GSD-2021-20197",
"modified": "2023-12-13T01:23:12.280528Z",
"schema_version": "1.4.0"
}
},
"namespaces": {
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"ID": "CVE-2021-20197",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "binutils",
"version": {
"version_data": [
{
"version_affected": "=",
"version_value": "binutils 2.35"
}
]
}
}
]
},
"vendor_name": "n/a"
}
]
}
},
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"value": "There is an open race window when writing output in the following utilities in GNU binutils version 2.35 and earlier:ar, objcopy, strip, ranlib. When these utilities are run as a privileged user (presumably as part of a script updating binaries across different users), an unprivileged user can trick these utilities into getting ownership of arbitrary files through a symlink."
}
]
},
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}
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"name": "https://bugzilla.redhat.com/show_bug.cgi?id=1913743",
"refsource": "MISC",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1913743"
},
{
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"refsource": "MISC",
"url": "https://sourceware.org/bugzilla/show_bug.cgi?id=26945"
},
{
"name": "https://security.gentoo.org/glsa/202208-30",
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"url": "https://security.gentoo.org/glsa/202208-30"
},
{
"name": "https://security.netapp.com/advisory/ntap-20210528-0009/",
"refsource": "MISC",
"url": "https://security.netapp.com/advisory/ntap-20210528-0009/"
}
]
}
},
"nvd.nist.gov": {
"configurations": {
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"nodes": [
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"cpe_match": [
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"versionEndIncluding": "2.35",
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"cpe_match": [
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},
{
"children": [],
"cpe_match": [
{
"cpe23Uri": "cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:a:netapp:ontap_select_deploy_administration_utility:-:*:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:a:netapp:solidfire_\\\u0026_hci_management_node:-:*:*:*:*:*:*:*",
"cpe_name": [],
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{
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"ID": "CVE-2021-20197"
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"description": {
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}
]
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"problemtype": {
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"references": {
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},
{
"name": "GLSA-202208-30",
"refsource": "GENTOO",
"tags": [
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"url": "https://security.gentoo.org/glsa/202208-30"
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},
"impact": {
"baseMetricV2": {
"acInsufInfo": false,
"cvssV2": {
"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,
"severity": "LOW",
"userInteractionRequired": false
},
"baseMetricV3": {
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"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "NONE",
"baseScore": 6.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N",
"version": "3.1"
},
"exploitabilityScore": 1.0,
"impactScore": 5.2
}
},
"lastModifiedDate": "2023-02-12T22:15Z",
"publishedDate": "2021-03-26T17:15Z"
}
}
}
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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.