Vulnerability-Lookup

GSD-2021-3573

Vulnerability from gsd - Updated: 2023-12-13 01:23

Details

A use-after-free in function hci_sock_bound_ioctl() of the Linux kernel HCI subsystem was found in the way user calls ioct HCIUNBLOCKADDR or other way triggers race condition of the call hci_unregister_dev() together with one of the calls hci_sock_blacklist_add(), hci_sock_blacklist_del(), hci_get_conn_info(), hci_get_auth_info(). A privileged local user could use this flaw to crash the system or escalate their privileges on the system. This flaw affects the Linux kernel versions prior to 5.13-rc5.

Aliases

CVE-2021-3573

Aliases

CVE-2021-3573

JSON

To clipboard

{
  "GSD": {
    "alias": "CVE-2021-3573",
    "description": "A use-after-free in function hci_sock_bound_ioctl() of the Linux kernel HCI subsystem was found in the way user calls ioct HCIUNBLOCKADDR or other way triggers race condition of the call hci_unregister_dev() together with one of the calls hci_sock_blacklist_add(), hci_sock_blacklist_del(), hci_get_conn_info(), hci_get_auth_info(). A privileged local user could use this flaw to crash the system or escalate their privileges on the system. This flaw affects the Linux kernel versions prior to 5.13-rc5.",
    "id": "GSD-2021-3573",
    "references": [
      "https://www.suse.com/security/cve/CVE-2021-3573.html",
      "https://access.redhat.com/errata/RHSA-2022:0622",
      "https://access.redhat.com/errata/RHSA-2022:0620",
      "https://access.redhat.com/errata/RHSA-2021:4356",
      "https://access.redhat.com/errata/RHSA-2021:4140",
      "https://ubuntu.com/security/CVE-2021-3573",
      "https://advisories.mageia.org/CVE-2021-3573.html",
      "https://security.archlinux.org/CVE-2021-3573",
      "https://linux.oracle.com/cve/CVE-2021-3573.html"
    ]
  },
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            "baseScore": 6.9,
            "confidentialityImpact": "COMPLETE",
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          "impactScore": 10.0,
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}

CVE-2021-3573 (GCVE-0-2021-3573)

Vulnerability from cvelistv5 – Published: 2021-08-13 00:00 – Updated: 2024-08-03 17:01

Summary

Severity

No CVSS data available.

CWE

CWE-362 - >CWE-416

Assigner

redhat redhat root

References

4 references

URL	Tags
https://bugzilla.redhat.com/show_bug.cgi?id=1966578
https://git.kernel.org/pub/scm/linux/kernel/git/b…
https://www.openwall.com/lists/oss-security/2021/…
http://www.openwall.com/lists/oss-security/2023/07/02/1	mailing-list

Impacted products

1 product

Vendor	Product	Version
n/a	kernel	Affected: kernel 5.13-rc5

Show details on NVD website

JSON

To clipboard

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          "dateUpdated": "2024-08-03T17:01:07.293Z",
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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.

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.