USN-4983-1 (UBUNTU-CVE-2021-3501)

Vulnerability from osv_ubuntu – Published: 2021-06-03 20:43 – Updated: 2026-06-03 10:45 – Source website
VLAI
Summary
linux-oem-5.10 vulnerabilities
Details

Piotr Krysiuk discovered that the eBPF implementation in the Linux kernel did not properly enforce limits for pointer operations. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-33200)

Piotr Krysiuk and Benedict Schlueter discovered that the eBPF implementation in the Linux kernel performed out of bounds speculation on pointer arithmetic. A local attacker could use this to expose sensitive information. (CVE-2021-29155)

Piotr Krysiuk discovered that the eBPF implementation in the Linux kernel did not properly prevent speculative loads in certain situations. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2021-31829)

Reiji Watanabe discovered that the KVM VMX implementation in the Linux kernel did not properly prevent user space from tampering with an array index value, leading to a potential out-of-bounds write. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-3501)

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2021-3501",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2021-29155",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2021-31829",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:20.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "linux-buildinfo-5.10.0-1029-oem",
            "binary_version": "5.10.0-1029.30"
          },
          {
            "binary_name": "linux-headers-5.10.0-1029-oem",
            "binary_version": "5.10.0-1029.30"
          },
          {
            "binary_name": "linux-image-unsigned-5.10.0-1029-oem",
            "binary_version": "5.10.0-1029.30"
          },
          {
            "binary_name": "linux-modules-5.10.0-1029-oem",
            "binary_version": "5.10.0-1029.30"
          },
          {
            "binary_name": "linux-oem-5.10-headers-5.10.0-1029",
            "binary_version": "5.10.0-1029.30"
          },
          {
            "binary_name": "linux-oem-5.10-tools-5.10.0-1029",
            "binary_version": "5.10.0-1029.30"
          },
          {
            "binary_name": "linux-oem-5.10-tools-host",
            "binary_version": "5.10.0-1029.30"
          },
          {
            "binary_name": "linux-tools-5.10.0-1029-oem",
            "binary_version": "5.10.0-1029.30"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "linux-oem-5.10",
        "purl": "pkg:deb/ubuntu/linux-oem-5.10@5.10.0-1029.30?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.10.0-1029.30"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "5.10.0-1008.9",
        "5.10.0-1011.12",
        "5.10.0-1013.14",
        "5.10.0-1014.15",
        "5.10.0-1016.17",
        "5.10.0-1017.18",
        "5.10.0-1019.20",
        "5.10.0-1021.22",
        "5.10.0-1022.23",
        "5.10.0-1023.24",
        "5.10.0-1025.26",
        "5.10.0-1026.27"
      ]
    }
  ],
  "aliases": [],
  "details": "Piotr Krysiuk discovered that the eBPF implementation in the Linux kernel\ndid not properly enforce limits for pointer operations. A local attacker\ncould use this to cause a denial of service (system crash) or possibly\nexecute arbitrary code. (CVE-2021-33200)\n\nPiotr Krysiuk and Benedict Schlueter discovered that the eBPF\nimplementation in the Linux kernel performed out of bounds speculation on\npointer arithmetic. A local attacker could use this to expose sensitive\ninformation. (CVE-2021-29155)\n\nPiotr Krysiuk discovered that the eBPF implementation in the Linux kernel\ndid not properly prevent speculative loads in certain situations. A local\nattacker could use this to expose sensitive information (kernel memory).\n(CVE-2021-31829)\n\nReiji Watanabe discovered that the KVM VMX implementation in the Linux\nkernel did not properly prevent user space from tampering with an array\nindex value, leading to a potential out-of-bounds write. A local attacker\ncould use this to cause a denial of service (system crash) or possibly\nexecute arbitrary code. (CVE-2021-3501)\n",
  "id": "USN-4983-1",
  "modified": "2026-06-03T10:45:26Z",
  "published": "2021-06-03T20:43:59Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-4983-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-3501"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-29155"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-31829"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-33200"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "linux-oem-5.10 vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2021-3501",
    "UBUNTU-CVE-2021-29155",
    "UBUNTU-CVE-2021-31829",
    "UBUNTU-CVE-2021-33200"
  ]
}



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