CVE-2026-101887

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Source
https://cve.org/CVERecord?id=CVE-2026-101887
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-101887.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-101887
Downstream
Published
2026-10-01T02:28:18Z
Modified
2026-10-02T08:13:50Z
Severity
  • 2.1 (Low) CVSS_V4 - 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 CVSS Calculator
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.

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"
        }
    ]
}
References

Affected packages

Git / github.com/arkq/bluez-alsa

Affected ranges

Type
GIT
Repo
https://github.com/arkq/bluez-alsa
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
1a84465dd860d1be9dcf62339c6273e9e0632dd2
Database specific
Show details 
{
    "source":  "REFERENCES"
}

Affected versions

v1.*
v1.0.0
v1.1.0
v1.2.0
v1.3.0
v1.3.1
v1.4.0
v2.*
v2.0.0
v2.1.0
v3.*
v3.0.0
v3.1.0
v4.*
v4.0.0
v4.1.0
v4.1.1
v4.2.0
v4.3.0
v4.3.1
v5.*
v5.0.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-101887.json"
vanir_signatures 
[
    {
        "deprecated":  false,
        "digest":  {
            "line_hashes":  [
                "264811917148832560564607037372657160539",
                "127560339560363240969738235316008634190",
                "140454364693443454457992172291290377767",
                "202842260137274196180412169962022653020",
                "333102183932242705187858821512468732242",
                "181288002239720092837635410902307855711"
            ],
            "threshold":  0.9
        },
        "id":  "CVE-2026-101887-1ee4b9b8",
        "signature_type":  "Line",
        "signature_version":  "v1",
        "source":  "https://github.com/arkq/bluez-alsa/commit/1a84465dd860d1be9dcf62339c6273e9e0632dd2",
        "target":  {
            "file":  "src/a2dp-lc3plus.c"
        }
    },
    {
        "deprecated":  false,
        "digest":  {
            "function_hash":  "265008919369034180990673424063688042761",
            "length":  4500
        },
        "id":  "CVE-2026-101887-f8fc6845",
        "signature_type":  "Function",
        "signature_version":  "v1",
        "source":  "https://github.com/arkq/bluez-alsa/commit/1a84465dd860d1be9dcf62339c6273e9e0632dd2",
        "target":  {
            "file":  "src/a2dp-lc3plus.c",
            "function":  "a2dp_lc3plus_dec_thread"
        }
    }
]
vanir_signatures_modified 
"2026-10-02T08:13:50Z"