usn-8098-1
Vulnerability from osv_ubuntu
Published
2026-03-16 15:20
Modified
2026-06-03 10:46
Summary
linux vulnerabilities
Details

Qualys discovered that several vulnerabilities existed in the AppArmor Linux kernel Security Module (LSM). An unprivileged local attacker could use these issues to load, replace, and remove arbitrary AppArmor profiles causing denial of service, exposure of sensitive information (kernel memory), local privilege escalation, or possibly escape a container. (LP: #2143853)

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - x86 architecture; - GPIO subsystem; - GPU drivers; - MMC subsystem; - BTRFS file system; - XFRM subsystem; - IPv4 networking; - IPv6 networking; - MAC80211 subsystem; - SMC sockets; (CVE-2021-47599, CVE-2022-48875, CVE-2022-49072, CVE-2022-49267, CVE-2024-49927, CVE-2024-56640, CVE-2025-21780, CVE-2025-40215)


{
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          "cves": [
            {
              "id": "CVE-2021-47599",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2022-48875",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2022-49072",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2022-49267",
              "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": "medium",
                  "type": "Ubuntu"
                }
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            },
            {
              "id": "CVE-2024-49927",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2024-56640",
              "severity": [
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                  "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-2025-21780",
              "severity": [
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                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
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                  "type": "CVSS_V3"
                },
                {
                  "score": "high",
                  "type": "Ubuntu"
                }
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            {
              "id": "CVE-2025-40215",
              "severity": [
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
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          "ecosystem": "Ubuntu:Pro:20.04:LTS"
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  ],
  "aliases": [],
  "details": "Qualys discovered that several vulnerabilities existed in the AppArmor\nLinux kernel Security Module (LSM). An unprivileged local attacker could\nuse these issues to load, replace, and remove arbitrary AppArmor profiles\ncausing denial of service, exposure of sensitive information (kernel\nmemory), local privilege escalation, or possibly escape a container.\n(LP: #2143853)\n\nSeveral security issues were discovered in the Linux kernel.\nAn attacker could possibly use these to compromise the system.\nThis update corrects flaws in the following subsystems:\n  - x86 architecture;\n  - GPIO subsystem;\n  - GPU drivers;\n  - MMC subsystem;\n  - BTRFS file system;\n  - XFRM subsystem;\n  - IPv4 networking;\n  - IPv6 networking;\n  - MAC80211 subsystem;\n  - SMC sockets;\n(CVE-2021-47599, CVE-2022-48875, CVE-2022-49072, CVE-2022-49267,\nCVE-2024-49927, CVE-2024-56640, CVE-2025-21780, CVE-2025-40215)\n",
  "id": "USN-8098-1",
  "modified": "2026-06-03T10:46:25Z",
  "published": "2026-03-16T15:20:24Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-8098-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-47599"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2022-48875"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2022-49072"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2022-49267"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2024-49927"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2024-56640"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2025-21780"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2025-40215"
    },
    {
      "type": "REPORT",
      "url": "https://launchpad.net/bugs/2143853"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "linux vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2021-47599",
    "UBUNTU-CVE-2022-48875",
    "UBUNTU-CVE-2022-49072",
    "UBUNTU-CVE-2022-49267",
    "UBUNTU-CVE-2024-49927",
    "UBUNTU-CVE-2024-56640",
    "UBUNTU-CVE-2025-21780",
    "UBUNTU-CVE-2025-40215"
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.

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Detection rules are retrieved from Rulezet.

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