github - ghsa-rq67-5wpf-96wv

GHSA-RQ67-5WPF-96WV

Vulnerability from github – Published: 2022-05-24 17:45 – Updated: 2025-12-03 15:30

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.

Severity ?

6.3 (Medium)


                  
                    CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N

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{
  "affected": [],
  "aliases": [
    "CVE-2021-20197"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-362",
      "CWE-59"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-03-26T17:15:00Z",
    "severity": "MODERATE"
  },
  "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": "GHSA-rq67-5wpf-96wv",
  "modified": "2025-12-03T15:30:27Z",
  "published": "2022-05-24T17:45:32Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-20197"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2021:4364"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2021-20197"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1913743"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/202208-30"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20210528-0009"
    },
    {
      "type": "WEB",
      "url": "https://sourceware.org/bugzilla/show_bug.cgi?id=26945"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2021-20197 (GCVE-0-2021-20197)

Vulnerability from cvelistv5 – Published: 2021-03-26 16:47 – Updated: 2025-12-03 15:08

Summary

Severity ?

6.3 (Medium)


                        
                          CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N

CWE

CWE-59

Assigner

redhat

References

URL

Tags

	https://bugzilla.redhat.com/show_bug.cgi?id=1913743	x_refsource_MISC
	https://sourceware.org/bugzilla/show_bug.cgi?id=26945	x_refsource_MISC
	https://security.netapp.com/advisory/ntap-2021052…	x_refsource_CONFIRM
	https://security.gentoo.org/glsa/202208-30	vendor-advisoryx_refsource_GENTOO

Impacted products

	Vendor	Product	Version
	n/a	binutils	Affected: binutils 2.35

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T17:30:07.480Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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              "x_transferred"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1913743"
          },
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              "x_refsource_MISC",
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            "url": "https://sourceware.org/bugzilla/show_bug.cgi?id=26945"
          },
          {
            "tags": [
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              "x_transferred"
            ],
            "url": "https://security.netapp.com/advisory/ntap-20210528-0009/"
          },
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            "name": "GLSA-202208-30",
            "tags": [
              "vendor-advisory",
              "x_refsource_GENTOO",
              "x_transferred"
            ],
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          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "cvssV3_1": {
              "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"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2021-20197",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
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                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-12-03T15:08:08.170713Z",
                "version": "2.0.3"
              },
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          "dateUpdated": "2025-12-03T15:08:21.724Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
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        "title": "CISA ADP Vulnrichment"
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    ],
    "cna": {
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          "product": "binutils",
          "vendor": "n/a",
          "versions": [
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        }
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    "assignerShortName": "redhat",
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    "datePublished": "2021-03-26T16:47:20.000Z",
    "dateReserved": "2020-12-17T00:00:00.000Z",
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    "state": "PUBLISHED"
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}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-RQ67-5WPF-96WV

CVE-2021-20197 (GCVE-0-2021-20197)

Tags

Sightings

Nomenclature