In BlueZ 5.42, a buffer over-read was identified in "l2cap_packet" function in…
Priority LOW 30CWE-119Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · Low
- Fix status
- Will not fix Red Hat: no fix planned
Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat.
Summary
In BlueZ 5.42, a buffer over-read was identified in "l2cap_packet" function in "monitor/packet.c" source file. This issue can be triggered by processing a corrupted dump file and will result in btmon crash.
Why it matters now
EPSS 0.03622 89th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Will not fix Red Hat: no fix planned
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Will not fix |
Not affected: 2 products
- Red Hat Enterprise Linux 5
- Red Hat Enterprise Linux 6
Timeline
- 2026-10-02 Threatist record created from CVE-2016-9802
- 2026-10-03 Alias added: GHSA-6mj7-55x2-g5xx
References
More Bluez vulnerabilities
- TI-2020-16504 In BlueZ before 5.55, a double free was found in the gatttool disconnect_cb() routine… CVSS 3.1HIGH 8.6
- TI-2024-08171 Improper access control in BlueZ CVSS 3.1HIGH 8.8
- TI-2022-00141 Memory corruption in bluez CVSS 3.1HIGH 8.8
- TI-2021-19345 An issue was discovered in gatt-database.c in BlueZ 5.61. CVSS 3.1CRITICAL 9.1
- TI-2019-06435 A heap-based buffer overflow was discovered in bluetoothd in BlueZ through 5.48. CVSS 3.1HIGH 8.8
- TI-2023-27461 Heap-based buffer overflow in BlueZ CVSS 3.1HIGH 8.0
Sources
- CVE-2016-9802 · CVE Program
- CVE-2016-9802 · NVD
- FIRST EPSS
- GHSA-6mj7-55x2-g5xx · GitHub Advisory Database · CC BY 4.0
- CVE-2016-9802 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences