{"schema":"threatline.record/2","record":{"id":"CVE-2026-101887","aliases":[],"summary":"BlueALSA bluealsad LC3plus Decoder Division-by-Zero DoS","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.","categories":["Unclassified"],"product":"bluez-alsa","vendor":"arkq","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-101887","source_modified_at":"2026-10-01T19:04:17.577Z","fetched_at":"2026-10-23T18:52:38.922436Z","product":"bluez-alsa","vendor":"arkq","versions":[{"status":"affected","version":"0","versionType":"git","lessThan":"1a84465dd860d1be9dcf62339c6273e9e0632dd2"}],"defaultStatus":"unaffected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-101887","source_modified_at":"2026-10-01T19:04:17.577Z","fetched_at":"2026-10-23T18:52:38.922436Z","package":{"name":"bluez-alsa","ecosystem":null},"version":"1a84465dd860d1be9dcf62339c6273e9e0632dd2","basis":"first unaffected version stated in the CVE record"}],"cvss":2.1,"severity":"Low","kev":{"listed":false},"epss":{"probability":0.00152,"percentile":0.04038,"score_date":"2026-10-23"},"published_at":"2026-10-01T02:28:18.194Z","modified_at":"2026-10-01T19:04:17.577Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-101887","fetched_at":"2026-10-23T18:52:38.922436Z","source_modified_at":"2026-10-01T19:04:17.577Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-101887","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://github.com/arkq/bluez-alsa/commit/1a84465dd860d1be9dcf62339c6273e9e0632dd2","tags":["patch"]},{"source":"CVE List","url":"https://www.vulncheck.com/advisories/bluealsa-bluealsad-lc3plus-decoder-division-by-zero-dos","tags":["third-party-advisory"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"none","automatable":"no","technical_impact":"partial","assessed_at":"2026-10-01T19:01:40.747925Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-01T19:04:17.577Z","content_hash":"0c69dad1b5090870dcf57307c8a9d579f7e54e6ace4f023b6f4aa964728b5538"}}