CVE Database›Document archive›CVE-2017-15868

CVE-2017-15868

kernel: bnep_add_connection does not check if l2cap socket is available allowing privilege escalation

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Severity

Moderate

Red Hat Product Security

7

CVSS 3.0

Review impact separately from score.

Published · December 19, 2014

Updated · June 28, 2026

Description

It was found that the Bluebooth Network Encapsulation Protocol (BNEP) implementation did not validate the type of second socket passed to the BNEPCONNADD ioctl(), which could lead to memory corruption. A local user with the CAP_NET_ADMIN capability can use this for denial of service (crash or data corruption) or possibly for privilege escalation. Due to the nature of the flaw, privilege escalation cannot be fully ruled out, although we feel it is unlikely.

Statement

This issue does not affect the versions of the Linux kernel as shipped with Red Hat Enterprise Linux 5 and 6, as namespaces feature, which is required for an attack, is not present in these products.

This issue does not affect the versions of the Linux kernel as shipped with Red Hat Enterprise Linux 7, its real-time kernel, Red Hat Enterprise MRG 2, Red Hat Enterprise Linux 7 for ARM 64 and Red Hat Enterprise Linux 7 for Power 9 LE, as this flaw was already fixed in this products.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.0 · 7
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE-391 · Unchecked Error Condition