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

Vulnerability from cvelistv5 – Published: 2023-06-28 19:33 – Updated: 2026-10-14 20:51
VLAI
Title
Use after free in io_uring in the Linux Kernel
Summary
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).
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
Assigner
Google CNA under the Google root
CNA scorecard B 77/100 over 39 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Kernel Affected: 5.13 , < 6.4 (custom)
Affected: 5.10.162 , < 5.10.185 (custom)
guessed Create a notification for this product.
Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem Affected: 0 , < V1.1 (custom)
guessed Create a notification for this product.
Date Public
2023-06-18 02:21
Credits
Querijn Voet
Show details on NVD website
To clipboard 

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              "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": "2025-03-05T18:55:17.919Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



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Sightings

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Nomenclature

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