Vulnerability-Lookup

GSD-2023-3389

Vulnerability from gsd - Updated: 2023-12-13 01:20

Details

A use-after-free vulnerability in the Linux Kernel io_uring subsystem can be exploited to achieve local privilege escalation. Racing a io_uring cancel poll request with a linked timeout can cause a UAF in a hrtimer. We recommend upgrading past commit ef7dfac51d8ed961b742218f526bd589f3900a59 (4716c73b188566865bdd79c3a6709696a224ac04 for 5.10 stable and 0e388fce7aec40992eadee654193cad345d62663 for 5.15 stable).

Aliases

CVE-2023-3389

Aliases

CVE-2023-3389

JSON

To clipboard

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CVE-2023-3389 (GCVE-0-2023-3389)

Vulnerability from cvelistv5 – Published: 2023-06-28 19:33 – Updated: 2026-10-14 20:51

Title

Use after free in io_uring in the Linux Kernel

Summary

Severity

7.8 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-03-05 18:36 UTC

CWE

CWE-416 - Use After Free

Assigner

Google CNA under the Google root

CNA scorecard B 77/100 over 40 records in the last 180 days details

References

11 references

URL	Tags
https://git.kernel.org/pub/scm/linux/kernel/git/s…	patch
https://git.kernel.org/pub/scm/linux/kernel/git/s…	patch
https://kernel.dance/0e388fce7aec40992eadee654193…
https://kernel.dance/4716c73b188566865bdd79c3a670…
https://git.kernel.org/pub/scm/linux/kernel/git/t…	patch
https://kernel.dance/ef7dfac51d8ed961b742218f526b…
https://security.netapp.com/advisory/ntap-2023073…
https://www.debian.org/security/2023/dsa-5480
http://packetstormsecurity.com/files/174577/Kerne…
https://lists.debian.org/debian-lts-announce/2023…
https://cert-portal.siemens.com/productcert/html/…

Impacted products

2 products

Vendor	Product	Version
Linux	Kernel	Affected: 5.13 , < 6.4 (custom) Affected: 5.10.162 , < 5.10.185 (custom)
Siemens	SIMATIC S7-1500 TM MFP - GNU/Linux subsystem	Affected: 0 , < V1.1 (custom)

Date Public

2023-06-18 02:21

Credits

Querijn Voet

Show details on NVD website

JSON

To clipboard

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          "value": "A use-after-free vulnerability in the Linux Kernel io_uring subsystem can be exploited to achieve local privilege escalation.\n\nRacing a io_uring cancel poll request with a linked timeout can cause a UAF in a hrtimer.\n\nWe recommend upgrading past commit ef7dfac51d8ed961b742218f526bd589f3900a59 (4716c73b188566865bdd79c3a6709696a224ac04 for 5.10 stable and\u00a00e388fce7aec40992eadee654193cad345d62663 for 5.15 stable)."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-233",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-233 Privilege Escalation"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-416",
              "description": "CWE-416 Use After Free",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-10-19T23:06:49.982Z",
        "orgId": "14ed7db2-1595-443d-9d34-6215bf890778",
        "shortName": "Google"
      },
      "references": [
        {
          "tags": [
            "patch"
          ],
          "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-5.15.y\u0026id=0e388fce7aec40992eadee654193cad345d62663"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-5.10.y\u0026id=4716c73b188566865bdd79c3a6709696a224ac04"
        },
        {
          "url": "https://kernel.dance/0e388fce7aec40992eadee654193cad345d62663"
        },
        {
          "url": "https://kernel.dance/4716c73b188566865bdd79c3a6709696a224ac04"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ef7dfac51d8ed961b742218f526bd589f3900a59"
        },
        {
          "url": "https://kernel.dance/ef7dfac51d8ed961b742218f526bd589f3900a59"
        },
        {
          "url": "https://security.netapp.com/advisory/ntap-20230731-0001/"
        },
        {
          "url": "https://www.debian.org/security/2023/dsa-5480"
        },
        {
          "url": "http://packetstormsecurity.com/files/174577/Kernel-Live-Patch-Security-Notice-LSN-0097-1.html"
        },
        {
          "url": "https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "Use after free in io_uring in the Linux Kernel",
      "x_generator": {
        "engine": "Vulnogram 0.1.0-dev"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "14ed7db2-1595-443d-9d34-6215bf890778",
    "assignerShortName": "Google",
    "cveId": "CVE-2023-3389",
    "datePublished": "2023-06-28T19:33:55.097Z",
    "dateReserved": "2023-06-23T13:43:00.034Z",
    "dateUpdated": "2026-10-14T20:51:34.078Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

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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.

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