CVE-2022-0646 (GCVE-0-2022-0646)

Vulnerability from cvelistv5 – Published: 2022-02-18 17:50 – Updated: 2024-08-02 23:32
VLAI
Summary
A flaw use after free in the Linux kernel Management Component Transport Protocol (MCTP) subsystem was found in the way user triggers cancel_work_sync after the unregister_netdev during removing device. A local user could use this flaw to crash the system or escalate their privileges on the system. It is actual from Linux Kernel 5.17-rc1 (when mctp-serial.c introduced) till 5.17-rc5.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
Assigner
References
Impacted products
Vendor Product Version
n/a Kernel Affected: 5.17-rc5
Show details on NVD website
To clipboard 

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      "cve": "CVE-2022-0646",
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      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: uaf bug in mctp-serial.c",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2022/cve-2022-0646.json",
      "version": "3"
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      "current_release_date": "2025-10-07T02:09:40Z",
      "cve": "CVE-2022-0646",
      "id": "CVE-2022-0646",
      "initial_release_date": "2023-02-15T03:34:55Z",
      "product_status:known_not_affected": "342",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2022-0646",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2022-0646.json",
      "version": "14"
    }
  }
}



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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.


Detection rules are retrieved from Rulezet.