Vulnerability-Lookup

CVE-2023-1077 (GCVE-0-2023-1077)

Vulnerability from cvelistv5 – Published: 2023-03-27 00:00 – Updated: 2024-08-02 05:32

Summary

In the Linux kernel, pick_next_rt_entity() may return a type confused entry, not detected by the BUG_ON condition, as the confused entry will not be NULL, but list_head.The buggy error condition would lead to a type confused entry with the list head,which would then be used as a type confused sched_rt_entity,causing memory corruption.

Severity

7.0 (High)


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

CWE

CWE-843

Assigner

redhat redhat root

References

4 references

URL	Tags
https://git.kernel.org/pub/scm/linux/kernel/git/n…
https://lists.debian.org/debian-lts-announce/2023…	mailing-list
https://security.netapp.com/advisory/ntap-2023051…
https://lists.debian.org/debian-lts-announce/2024…	mailing-list

Impacted products

1 product

Vendor	Product	Version	CPE status
n/a	Linux kernel	Affected: unknown

Show details on NVD website

JSON

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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-07-21T18:48:22+00:00",
      "cve": "CVE-2023-1077",
      "id": "CVE-2023-1077",
      "initial_release_date": "2023-02-06T00:00:00+00:00",
      "product_status:known_affected": "186",
      "product_status:known_not_affected": "14",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: Type confusion in pick_next_rt_entity()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-1077.json",
      "version": "3"
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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.

Action not permitted

CVE-2023-1077 (GCVE-0-2023-1077)

Tags

Sightings

Nomenclature