TI-2018-14431 Aliases CVE-2018-20378 GHSA-v7p7-43jq-569f

The L2CAP signaling channel implementation and SDP server implementation in OpenSynergy…

LOW 37CWE-20Published 2019-03-29 · Updated 2024-08-05

Key facts

Attack vector: Adjacent network
Privileges required: None
User interaction: None
Attack complexity: High
Impact type: —
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA.

Summary

The L2CAP signaling channel implementation and SDP server implementation in OpenSynergy Blue SDK 3.2 through 6.0 allow remote, unauthenticated attackers to execute arbitrary code or cause a denial of service via malicious L2CAP configuration requests, in conjunction with crafted SDP communication over maliciously configured L2CAP channels. The attacker must have connectivity over the Bluetooth physical layer, and must be able to send raw L2CAP frames. This is related to L2Cap_HandleConfigReq in core/stack/l2cap/l2cap_sm.c and SdpServHandleServiceSearchAttribReq in core/stack/sdp/sdpserv.c.

Why it matters now

EPSS 0.02261 83rd percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix No fix listed No fixed version in the sources yet

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

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:opensynergy:blue_sdk::::::::	3.2 – 5.5.3; 6.0 to before 6.0.1	Vulnerable	Opensynergy

cpe:2.3:a:opensynergy:blue_sdk:*:*:*:*:*:*:*:* Versions 3.2 – 5.5.3; 6.0 to before 6.0.1 Vulnerable ·Opensynergy

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2018-20378
2026-10-03 Alias added: GHSA-v7p7-43jq-569f

References

Exploit 1

https://www.cymotive.com/wp-content/uploads/2019/03/Hell2CAP-0day.pdf

Advisory 1

https://www.opensynergy.com/news/security/bluesdk-advisory2018003/

TI-2024-30479 OpenSynergy BlueSDK (aka Blue SDK) through 6.x has a Use-After-Free. CVSS 3.1CRITICAL 9.8
TI-2024-30477 OpenSynergy BlueSDK (aka Blue SDK) through 6.x mishandles a function call. CVSS 3.1HIGH 7.5
TI-2024-30476 OpenSynergy BlueSDK (aka Blue SDK) through 6.x has Improper Input Validation. CVSS 3.1MEDIUM 5.3
TI-2024-30478 OpenSynergy BlueSDK (aka Blue SDK) through 6.x has Incorrect Control Flow Scoping. CVSS 3.1MEDIUM 6.5

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences