{
  "cveId": "CVE-2026-56109",
  "url": "https://patchblox.com/security/cve/CVE-2026-56109",
  "summary": "CVE-2026-56109 is fixed in 13 products on 1 platform, first by libasound2-data 1.2.15.3-1ubuntu1.1, released June 22, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "alsa-lib: The Advanced Linux Sound Architecture (ALSA) library before 1.2.16.1 contains a double-free vulnerability in parse_de...",
  "description": "The Advanced Linux Sound Architecture (ALSA) library before 1.2.16.1 contains a double-free vulnerability in parse_def() in src/conf.c that allows attackers to corrupt memory by supplying maliciously crafted ALSA configuration text. When parsing nested compound or array configuration blocks, parse_def() fails to check return values before continuing, causing snd_config_delete() to be called twice on the same already-freed node, resulting in a NULL-pointer write or invalid memory read.",
  "published": "2026-06-22T11:16:00Z",
  "severity": "Medium",
  "epss": 0.00138,
  "epssPercentile": 0.03229,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "alsa",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "1.2.14-160000.3.1",
      "fix": "OPENSUSE-SU-2026:21075-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-21075-1",
      "released": "2026-06-28T08:50:00Z"
    },
    {
      "platform": "linux",
      "product": "alsa",
      "release": "sles 15.7",
      "fixedVersion": "1.2.10-150600.4.3.1",
      "fix": "SUSE-SU-2026:3270-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-3270-1",
      "released": "2026-07-27T11:01:26Z"
    },
    {
      "platform": "linux",
      "product": "alsa",
      "release": "sles 16.0",
      "fixedVersion": "1.2.14-160000.3.1",
      "fix": "SUSE-SU-2026:22381-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-22381-1",
      "released": "2026-06-28T08:50:11Z"
    },
    {
      "platform": "linux",
      "product": "alsa-lib",
      "release": "Debian 14",
      "fixedVersion": "1.2.16.1-1",
      "fix": "DEBIAN-CVE-2026-56109",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-56109",
      "released": "2026-07-03T14:54:39Z"
    },
    {
      "platform": "linux",
      "product": "alsa-lib",
      "release": "amzn 2023",
      "fixedVersion": "1.2.7.2-1.amzn2023.0.4",
      "fix": "ALAS2023-2026-2082",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-2082",
      "released": "2026-08-31T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "alsa-lib-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "1.2.7.2-1.amzn2023.0.4",
      "fix": "ALAS2023-2026-2082",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-2082",
      "released": "2026-08-31T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "alsa-lib-debugsource",
      "release": "amzn 2023",
      "fixedVersion": "1.2.7.2-1.amzn2023.0.4",
      "fix": "ALAS2023-2026-2082",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-2082",
      "released": "2026-08-31T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "alsa-lib-devel",
      "release": "amzn 2023",
      "fixedVersion": "1.2.7.2-1.amzn2023.0.4",
      "fix": "ALAS2023-2026-2082",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-2082",
      "released": "2026-08-31T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "alsa-topology",
      "release": "amzn 2023",
      "fixedVersion": "1.2.7.2-1.amzn2023.0.4",
      "fix": "ALAS2023-2026-2082",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-2082",
      "released": "2026-08-31T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "alsa-ucm",
      "release": "amzn 2023",
      "fixedVersion": "1.2.7.2-1.amzn2023.0.4",
      "fix": "ALAS2023-2026-2082",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-2082",
      "released": "2026-08-31T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libasound2",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "1.2.6.1-1ubuntu1.2",
      "fix": "libasound2 1.2.6.1-1ubuntu1.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-libasound2-1.2.6.1-1ubuntu1.2",
      "released": "2026-07-18T12:43:06Z"
    },
    {
      "platform": "linux",
      "product": "libasound2-data",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "1.2.6.1-1ubuntu1.2",
      "fix": "libasound2-data 1.2.6.1-1ubuntu1.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-libasound2-data-1.2.6.1-1ubuntu1.2",
      "released": "2026-07-18T12:43:06Z"
    },
    {
      "platform": "linux",
      "product": "libasound2-data",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "1.2.11-1ubuntu0.3",
      "fix": "libasound2-data 1.2.11-1ubuntu0.3",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-libasound2-data-1.2.11-1ubuntu0.3",
      "released": "2026-07-18T12:43:09Z"
    },
    {
      "platform": "linux",
      "product": "libasound2-data",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "1.2.15.3-1ubuntu1.1",
      "fix": "libasound2-data 1.2.15.3-1ubuntu1.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-libasound2-data-1.2.15.3-1ubuntu1.1",
      "released": "2026-06-22T11:16:00Z"
    },
    {
      "platform": "linux",
      "product": "libasound2-plugin-smixer",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "1.2.6.1-1ubuntu1.2",
      "fix": "libasound2-plugin-smixer 1.2.6.1-1ubuntu1.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-libasound2-plugin-smixer-1.2.6.1-1ubuntu1.2",
      "released": "2026-07-18T12:43:06Z"
    },
    {
      "platform": "linux",
      "product": "libasound2-plugin-smixer",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "1.2.11-1ubuntu0.3",
      "fix": "libasound2-plugin-smixer 1.2.11-1ubuntu0.3",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-libasound2-plugin-smixer-1.2.11-1ubuntu0.3",
      "released": "2026-07-18T12:43:09Z"
    },
    {
      "platform": "linux",
      "product": "libasound2-plugin-smixer",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "1.2.15.3-1ubuntu1.1",
      "fix": "libasound2-plugin-smixer 1.2.15.3-1ubuntu1.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-libasound2-plugin-smixer-1.2.15.3-1ubuntu1.1",
      "released": "2026-06-22T11:16:00Z"
    },
    {
      "platform": "linux",
      "product": "libasound2t64",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "1.2.11-1ubuntu0.3",
      "fix": "libasound2t64 1.2.11-1ubuntu0.3",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-libasound2t64-1.2.11-1ubuntu0.3",
      "released": "2026-07-18T12:43:09Z"
    },
    {
      "platform": "linux",
      "product": "libasound2t64",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "1.2.15.3-1ubuntu1.1",
      "fix": "libasound2t64 1.2.15.3-1ubuntu1.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-libasound2t64-1.2.15.3-1ubuntu1.1",
      "released": "2026-06-22T11:16:00Z"
    },
    {
      "platform": "linux",
      "product": "libatopology2",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "1.2.6.1-1ubuntu1.2",
      "fix": "libatopology2 1.2.6.1-1ubuntu1.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-libatopology2-1.2.6.1-1ubuntu1.2",
      "released": "2026-07-18T12:43:06Z"
    },
    {
      "platform": "linux",
      "product": "libatopology2t64",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "1.2.11-1ubuntu0.3",
      "fix": "libatopology2t64 1.2.11-1ubuntu0.3",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-libatopology2t64-1.2.11-1ubuntu0.3",
      "released": "2026-07-18T12:43:09Z"
    },
    {
      "platform": "linux",
      "product": "libatopology2t64",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "1.2.15.3-1ubuntu1.1",
      "fix": "libatopology2t64 1.2.15.3-1ubuntu1.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-libatopology2t64-1.2.15.3-1ubuntu1.1",
      "released": "2026-06-22T11:16:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T01:18:40Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}