Vulnerability-Lookup

RHSA-2021:4404

Vulnerability from csaf_opensuse - Published: 2021-11-09 00:00 - Updated: 2026-09-20 11:17

Summary

security update for kexec-tools

Severity

Low

Notes

Title of the patch: security update for kexec-tools

Description of the patch: This security update provides a functional equivalent of RHSA-2021:4404. The original Red Hat(R) advisory is available from the Red Hat web site at https://access.redhat.com/errata/RHSA-2021:4404.

Patchnames: RHSA-2021:4404

CVE-2021-20269

4.7 (Medium)


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

Affected products

Recommended 1 product

Product	Identifier	Version	Remediation
Unresolved product id: SUSE Liberty Linux 8:kexec-tools-0:2.0.20-57.el8.x86_64		—	Vendor Fix

Threats

Impact moderate

References

5 references

URL	Category
https://www.suse.com/support/security/rating/	external
https://ftp.suse.com/pub/projects/security/csaf/r…	self
https://www.suse.com/security/cve/CVE-2021-20269/	self
https://www.suse.com/security/cve/CVE-2021-20269	external
https://bugzilla.suse.com/1189468	external

JSON

To clipboard

{
  "document": {
    "aggregate_severity": {
      "namespace": "https://www.suse.com/support/security/rating/",
      "text": "Low"
    },
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Copyright 2024 SUSE LLC. All rights reserved.",
      "tlp": {
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      }
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        "title": "Title of the patch"
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        "text": "This security update provides a functional equivalent of RHSA-2021:4404.\nThe original Red Hat(R) advisory is available from the Red Hat web site at\nhttps://access.redhat.com/errata/RHSA-2021:4404.\n",
        "title": "Description of the patch"
      },
      {
        "category": "details",
        "text": "RHSA-2021:4404",
        "title": "Patchnames"
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        "category": "legal_disclaimer",
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    "publisher": {
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    },
    "references": [
      {
        "category": "external",
        "summary": "SUSE ratings",
        "url": "https://www.suse.com/support/security/rating/"
      },
      {
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      },
      {
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        "url": "https://www.suse.com/security/cve/CVE-2021-20269/"
      }
    ],
    "title": "security update for kexec-tools",
    "tracking": {
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      "revision_history": [
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        },
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          "summary": "unknown changes"
        }
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      "status": "final",
      "version": "2"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version",
                "name": "kexec-tools-0:2.0.20-57.el8.x86_64",
                "product": {
                  "name": "kexec-tools-0:2.0.20-57.el8.x86_64",
                  "product_id": "kexec-tools-0:2.0.20-57.el8.x86_64",
                  "product_identification_helper": {
                    "cpe": "cpe:2.3:a:kernel:kexec-tools:2.0.20:*:*:*:*:*:*:*",
                    "purl": "pkg:rpm/suse/kexec-tools@2.0.20-57.el8?arch=x86_64\u0026upstream=kexec-tools-0:2.0.20-57.el8.src.rpm"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "x86_64"
          },
          {
            "branches": [
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    ],
    "relationships": [
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          "product_id": "SUSE Liberty Linux 8:kexec-tools-0:2.0.20-57.el8.x86_64"
        },
        "product_reference": "kexec-tools-0:2.0.20-57.el8.x86_64",
        "relates_to_product_reference": "SUSE Liberty Linux 8"
      }
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  },
  "vulnerabilities": [
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        }
      ],
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          "category": "general",
          "text": "A flaw was found in the permissions of a log file created by kexec-tools. This flaw allows a local unprivileged user to read this file and leak kernel internal information from a previous panic. The highest threat from this vulnerability is to confidentiality. This flaw affects kexec-tools shipped by Fedora versions prior to 2.0.21-8 and RHEL versions prior to 2.0.20-47.",
          "title": "CVE description"
        }
      ],
      "product_status": {
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        ]
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        },
        {
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          "summary": "SUSE Bug 1189468 for CVE-2021-20269",
          "url": "https://bugzilla.suse.com/1189468"
        }
      ],
      "remediations": [
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          "category": "vendor_fix",
          "details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
          "product_ids": [
            "SUSE Liberty Linux 8:kexec-tools-0:2.0.20-57.el8.x86_64"
          ]
        }
      ],
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            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N",
            "version": "3.1"
          },
          "products": [
            "SUSE Liberty Linux 8:kexec-tools-0:2.0.20-57.el8.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2021-11-09T00:00:00Z",
          "details": "moderate"
        }
      ],
      "title": "CVE-2021-20269"
    }
  ]
}

CVE-2021-20269 (GCVE-0-2021-20269)

Vulnerability from cvelistv5 – Published: 2022-03-09 16:29 – Updated: 2024-08-03 17:37

Summary

A flaw was found in the permissions of a log file created by kexec-tools. This flaw allows a local unprivileged user to read this file and leak kernel internal information from a previous panic. The highest threat from this vulnerability is to confidentiality. This flaw affects kexec-tools shipped by Fedora versions prior to 2.0.21-8 and RHEL versions prior to 2.0.20-47.

Severity

No CVSS data available.

CWE

CWE-276

Assigner

redhat redhat root Scorecard

References

1 reference

URL	Tags
https://bugzilla.redhat.com/show_bug.cgi?id=1934261	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
n/a	kexec-tools	Affected: Fedora kexec-tools versions prior to 2.0.21-8 and RHEL kexec-tools versions prior to 2.0.20-47

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T17:37:23.203Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
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              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1934261"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "kexec-tools",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "Fedora kexec-tools versions prior to 2.0.21-8 and RHEL kexec-tools versions prior to 2.0.20-47"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A flaw was found in the permissions of a log file created by kexec-tools. This flaw allows a local unprivileged user to read this file and leak kernel internal information from a previous panic. The highest threat from this vulnerability is to confidentiality. This flaw affects kexec-tools shipped by Fedora versions prior to 2.0.21-8 and RHEL versions prior to 2.0.20-47."
        }
      ],
      "problemTypes": [
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              "lang": "en",
              "type": "CWE"
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      ],
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        "shortName": "redhat"
      },
      "references": [
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          ],
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1934261"
        }
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    }
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  "cveMetadata": {
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    "datePublished": "2022-03-09T16:29:47.000Z",
    "dateReserved": "2020-12-17T00:00:00.000Z",
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    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date	Other

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

RHSA-2021:4404

CVE-2021-20269 (GCVE-0-2021-20269)

Tags

Sightings

Nomenclature

Related by attack behaviour