CVEvulnerability

CVE-2020-35499

6.7 MEDIUM Published 2021-02-19 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2021-02-19
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
6.7 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
7.2 HIGH — AV:L/AC:L/Au:N/C:C/I:C/A:C
Weaknesses
CWE-476

Description

A NULL pointer dereference flaw in Linux kernel versions prior to 5.11 may be seen if sco_sock_getsockopt function in net/bluetooth/sco.c do not have a sanity check for a socket connection, when using BT_SNDMTU/BT_RCVMTU for SCO sockets. This could allow a local attacker with a special user privilege to crash the system (DOS) or leak kernel internal information.

Affected configurations

• linux linux kernel (>= 5.10 < 5.10.4)

Related

Weakness · CWE (1)

  • CWE-476 NULL Pointer Dereference weakness

References