{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "source": "REFERENCES"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1a84465dd860d1be9dcf62339c6273e9e0632dd2"
            }
          ],
          "repo": "https://github.com/arkq/bluez-alsa",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-369"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/101xxx/CVE-2026-101887.json",
    "unresolved_ranges": [
      {
        "extracted_events": [
          {
            "fixed": "1a84465dd860d1be9dcf62339c6273e9e0632dd2"
          }
        ],
        "source": "AFFECTED_FIELD"
      }
    ]
  },
  "details": "BlueALSA (bluez-alsa/bluealsad) contains a division-by-zero vulnerability in the LC3plus sink decoder (a2dp-lc3plus.c, a2dp_lc3plus_dec_thread) that allows a Bluetooth-adjacent attacker to crash the daemon by sending a crafted RTP media header with an attacker-controlled frame count field set to zero. Attackers can establish an A2DP source connection with an LC3plus session negotiated against a victim running bluealsad as an A2DP sink and transmit a non-fragmented LC3plus media header with a zero frame count to trigger a SIGFPE in the decoding thread, causing a denial of service on builds compiled with LC3plus support enabled.",
  "id": "CVE-2026-101887",
  "modified": "2026-10-03T03:31:01.777185181Z",
  "published": "2026-10-01T02:28:18.194Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/101xxx/CVE-2026-101887.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-101887"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/bluealsa-bluealsad-lc3plus-decoder-division-by-zero-dos"
    },
    {
      "type": "FIX",
      "url": "https://github.com/arkq/bluez-alsa/commit/1a84465dd860d1be9dcf62339c6273e9e0632dd2"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/arkq/bluez-alsa"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:A/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "BlueALSA bluealsad LC3plus Decoder Division-by-Zero DoS"
}