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CVE-2021-38166 (GCVE-0-2021-38166)

Vulnerability from cvelistv5 – Published: 2021-08-07 17:50 – Updated: 2024-08-04 01:37
VLAI
Summary
In kernel/bpf/hashtab.c in the Linux kernel through 5.13.8, there is an integer overflow and out-of-bounds write when many elements are placed in a single bucket. NOTE: exploitation might be impractical without the CAP_SYS_ADMIN capability.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
  • n/a
Assigner
References
Show details on NVD website
To clipboard 

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    "redhat_vex": {
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      "cve": "CVE-2021-38166",
      "id": "CVE-2021-38166",
      "initial_release_date": "2021-08-07T00:00:00+00:00",
      "product_status:known_affected": "49",
      "product_status:known_not_affected": "148",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: integer overflow and out-of-bounds write in kernel/bpf/hashtab.c when many elements are placed in a single bucket",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-38166.json",
      "version": "3"
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      "cve": "CVE-2021-38166",
      "id": "CVE-2021-38166",
      "initial_release_date": "2023-02-15T03:38:46Z",
      "product_status:known_affected": "326",
      "product_status:known_not_affected": "340",
      "product_status:recommended": "751",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2021-38166",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2021-38166.json",
      "version": "39"
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}



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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
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  • 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.


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.