Vulnerability-Lookup

OESA-2023-1201 (CVE-2023-0266)

Vulnerability from osv_openeuler – Published: 2023-04-01 11:05 – Updated: 2026-08-06 11:05 – Source website

Summary

kernel security update

Details

The Linux Kernel, the operating system core itself.

Security Fix(es):

A use after free vulnerability exists in the ALSA PCM package in the Linux Kernel. SNDRV_CTL_IOCTL_ELEM_{READ|WRITE}32 is missing locks that can be used in a use-after-free that can result in a priviledge escalation to gain ring0 access from the system user. We recommend upgrading past commit 56b88b50565cd8b946a2d00b0c83927b7ebb055e(CVE-2023-0266)

Severity

7.8 (High)


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

References

URL

Type

	https://www.openeuler.org/en/security/safety-bull…	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2023-0266	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "aarch64": [
          "kernel-headers-5.10.0-136.26.0.102.oe2203sp1.aarch64.rpm",
          "kernel-source-5.10.0-136.26.0.102.oe2203sp1.aarch64.rpm",
          "python3-perf-5.10.0-136.26.0.102.oe2203sp1.aarch64.rpm",
          "kernel-debugsource-5.10.0-136.26.0.102.oe2203sp1.aarch64.rpm",
          "python3-perf-debuginfo-5.10.0-136.26.0.102.oe2203sp1.aarch64.rpm",
          "perf-debuginfo-5.10.0-136.26.0.102.oe2203sp1.aarch64.rpm",
          "kernel-5.10.0-136.26.0.102.oe2203sp1.aarch64.rpm",
          "kernel-devel-5.10.0-136.26.0.102.oe2203sp1.aarch64.rpm",
          "kernel-debuginfo-5.10.0-136.26.0.102.oe2203sp1.aarch64.rpm",
          "bpftool-debuginfo-5.10.0-136.26.0.102.oe2203sp1.aarch64.rpm",
          "kernel-tools-5.10.0-136.26.0.102.oe2203sp1.aarch64.rpm",
          "kernel-tools-debuginfo-5.10.0-136.26.0.102.oe2203sp1.aarch64.rpm",
          "perf-5.10.0-136.26.0.102.oe2203sp1.aarch64.rpm",
          "bpftool-5.10.0-136.26.0.102.oe2203sp1.aarch64.rpm",
          "kernel-tools-devel-5.10.0-136.26.0.102.oe2203sp1.aarch64.rpm"
        ],
        "src": [
          "kernel-5.10.0-136.26.0.102.oe2203sp1.src.rpm"
        ],
        "x86_64": [
          "kernel-5.10.0-136.26.0.102.oe2203sp1.x86_64.rpm",
          "kernel-debuginfo-5.10.0-136.26.0.102.oe2203sp1.x86_64.rpm",
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          "kernel-headers-5.10.0-136.26.0.102.oe2203sp1.x86_64.rpm",
          "kernel-source-5.10.0-136.26.0.102.oe2203sp1.x86_64.rpm",
          "kernel-debugsource-5.10.0-136.26.0.102.oe2203sp1.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:22.03-LTS-SP1",
        "name": "kernel",
        "purl": "pkg:rpm/openEuler/kernel\u0026distro=openEuler-22.03-LTS-SP1"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.10.0-136.26.0.102.oe2203sp1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "severity": "High"
  },
  "details": "The Linux Kernel, the operating system core itself.\r\n\r\nSecurity Fix(es):\r\n\r\nA use after free vulnerability exists in the ALSA PCM package in the Linux Kernel. SNDRV_CTL_IOCTL_ELEM_{READ|WRITE}32 is missing locks that can be used in a use-after-free that can result in a priviledge escalation to gain ring0 access from the system user. We recommend upgrading past commit 56b88b50565cd8b946a2d00b0c83927b7ebb055e(CVE-2023-0266)",
  "id": "OESA-2023-1201",
  "modified": "2026-08-06T11:05:40Z",
  "published": "2023-04-01T11:05:40Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2023-1201"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-0266"
    }
  ],
  "schema_version": "1.7.2",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "kernel security update",
  "upstream": [
    "CVE-2023-0266"
  ]
}

CVE-2023-0266 (GCVE-0-2023-0266)

Vulnerability from cvelistv5 – Published: 2023-01-30 13:09 – Updated: 2025-10-21 23:15

Title

Use after free in SNDRV_CTL_IOCTL_ELEM in Linux Kernel

Summary

Severity

7.9 (High)


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

SSVC

Exploitation: active Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-01-29 15:07 UTC

CWE

CWE-416 - Use After Free

Assigner

Google Google root Scorecard

References

5 references

URL	Tags
https://github.com/torvalds/linux/commit/becf9e5d…
https://git.kernel.org/pub/scm/linux/kernel/git/s…
https://github.com/torvalds/linux/commit/56b88b50…
https://lists.debian.org/debian-lts-announce/2023…
https://www.cisa.gov/known-exploited-vulnerabilit…	government-resource

Impacted products

1 product

Vendor	Product	Version
Linux	Linux Kernel	Affected: 4.14 , < 56b88b50565cd8b946a2d00b0c83927b7ebb055e (git)

Date Public

2023-01-13 00:00

Show details on NVD website

JSON

To clipboard

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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.

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.

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Action not permitted

OESA-2023-1201 (CVE-2023-0266)

CVE-2023-0266 (GCVE-0-2023-0266)

Tags

Sightings

Nomenclature

Related by attack behaviour