USN-6043-1 (UBUNTU-CVE-2023-0386)

Vulnerability from osv_ubuntu – Published: 2023-04-26 13:39 – Updated: 2026-06-03 10:45 – Source website
VLAI
Summary
linux, linux-aws, linux-azure, linux-gcp, linux-hwe-5.19, linux-ibm, linux-kvm, linux-lowlatency, linux-oracle, linux-raspi vulnerabilities
Details

It was discovered that the Traffic-Control Index (TCINDEX) implementation in the Linux kernel did not properly perform filter deactivation in some situations. A local attacker could possibly use this to gain elevated privileges. Please note that with the fix for this CVE, kernel support for the TCINDEX classifier has been removed. (CVE-2023-1829)

It was discovered that the OverlayFS implementation in the Linux kernel did not properly handle copy up operation in some conditions. A local attacker could possibly use this to gain elevated privileges. (CVE-2023-0386)

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2023-0386",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "high",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2023-1829",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "high",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:22.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "linux-buildinfo-5.19.0-41-generic",
            "binary_version": "5.19.0-41.42~22.04.1"
          },
          {
            "binary_name": "linux-buildinfo-5.19.0-41-generic-64k",
            "binary_version": "5.19.0-41.42~22.04.1"
          },
          {
            "binary_name": "linux-buildinfo-5.19.0-41-generic-lpae",
            "binary_version": "5.19.0-41.42~22.04.1"
          },
          {
            "binary_name": "linux-cloud-tools-5.19.0-41-generic",
            "binary_version": "5.19.0-41.42~22.04.1"
          },
          {
            "binary_name": "linux-headers-5.19.0-41-generic",
            "binary_version": "5.19.0-41.42~22.04.1"
          },
          {
            "binary_name": "linux-headers-5.19.0-41-generic-64k",
            "binary_version": "5.19.0-41.42~22.04.1"
          },
          {
            "binary_name": "linux-headers-5.19.0-41-generic-lpae",
            "binary_version": "5.19.0-41.42~22.04.1"
          },
          {
            "binary_name": "linux-hwe-5.19-cloud-tools-5.19.0-41",
            "binary_version": "5.19.0-41.42~22.04.1"
          },
          {
            "binary_name": "linux-hwe-5.19-cloud-tools-common",
            "binary_version": "5.19.0-41.42~22.04.1"
          },
          {
            "binary_name": "linux-hwe-5.19-headers-5.19.0-41",
            "binary_version": "5.19.0-41.42~22.04.1"
          },
          {
            "binary_name": "linux-hwe-5.19-tools-5.19.0-41",
            "binary_version": "5.19.0-41.42~22.04.1"
          },
          {
            "binary_name": "linux-hwe-5.19-tools-common",
            "binary_version": "5.19.0-41.42~22.04.1"
          },
          {
            "binary_name": "linux-hwe-5.19-tools-host",
            "binary_version": "5.19.0-41.42~22.04.1"
          },
          {
            "binary_name": "linux-image-5.19.0-41-generic",
            "binary_version": "5.19.0-41.42~22.04.1"
          },
          {
            "binary_name": "linux-image-5.19.0-41-generic-lpae",
            "binary_version": "5.19.0-41.42~22.04.1"
          },
          {
            "binary_name": "linux-image-unsigned-5.19.0-41-generic",
            "binary_version": "5.19.0-41.42~22.04.1"
          },
          {
            "binary_name": "linux-image-unsigned-5.19.0-41-generic-64k",
            "binary_version": "5.19.0-41.42~22.04.1"
          },
          {
            "binary_name": "linux-modules-5.19.0-41-generic",
            "binary_version": "5.19.0-41.42~22.04.1"
          },
          {
            "binary_name": "linux-modules-5.19.0-41-generic-64k",
            "binary_version": "5.19.0-41.42~22.04.1"
          },
          {
            "binary_name": "linux-modules-5.19.0-41-generic-lpae",
            "binary_version": "5.19.0-41.42~22.04.1"
          },
          {
            "binary_name": "linux-modules-extra-5.19.0-41-generic",
            "binary_version": "5.19.0-41.42~22.04.1"
          },
          {
            "binary_name": "linux-modules-ipu6-5.19.0-41-generic",
            "binary_version": "5.19.0-41.42~22.04.1"
          },
          {
            "binary_name": "linux-modules-ivsc-5.19.0-41-generic",
            "binary_version": "5.19.0-41.42~22.04.1"
          },
          {
            "binary_name": "linux-modules-iwlwifi-5.19.0-41-generic",
            "binary_version": "5.19.0-41.42~22.04.1"
          },
          {
            "binary_name": "linux-source-5.19.0",
            "binary_version": "5.19.0-41.42~22.04.1"
          },
          {
            "binary_name": "linux-tools-5.19.0-41-generic",
            "binary_version": "5.19.0-41.42~22.04.1"
          },
          {
            "binary_name": "linux-tools-5.19.0-41-generic-64k",
            "binary_version": "5.19.0-41.42~22.04.1"
          },
          {
            "binary_name": "linux-tools-5.19.0-41-generic-lpae",
            "binary_version": "5.19.0-41.42~22.04.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "linux-hwe-5.19",
        "purl": "pkg:deb/ubuntu/linux-hwe-5.19@5.19.0-41.42~22.04.1?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.19.0-41.42~22.04.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "5.19.0-28.29~22.04.1",
        "5.19.0-32.33~22.04.1",
        "5.19.0-35.36~22.04.1",
        "5.19.0-38.39~22.04.1",
        "5.19.0-40.41~22.04.1"
      ]
    }
  ],
  "aliases": [],
  "details": "It was discovered that the Traffic-Control Index (TCINDEX) implementation\nin the Linux kernel did not properly perform filter deactivation in some\nsituations. A local attacker could possibly use this to gain elevated\nprivileges. Please note that with the fix for this CVE, kernel support for\nthe TCINDEX classifier has been removed. (CVE-2023-1829)\n\nIt was discovered that the OverlayFS implementation in the Linux kernel did\nnot properly handle copy up operation in some conditions. A local attacker\ncould possibly use this to gain elevated privileges. (CVE-2023-0386)\n\n",
  "id": "USN-6043-1",
  "modified": "2026-06-03T10:45:33Z",
  "published": "2023-04-26T13:39:51Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-6043-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2023-0386"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2023-1829"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "linux, linux-aws, linux-azure, linux-gcp, linux-hwe-5.19, linux-ibm, linux-kvm, linux-lowlatency, linux-oracle, linux-raspi vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2023-0386",
    "UBUNTU-CVE-2023-1829"
  ]
}



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