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.
Published: 2021-02-19
Score: 6.7 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
EUVD EUVD EUVD-2020-23168 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.
History

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Linux Linux Kernel
cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2024-08-04T17:02:07.997Z

Reserved: 2020-12-17T00:00:00.000Z

Link: CVE-2020-35499

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2021-02-19T20:15:12.757

Modified: 2024-11-21T05:27:26.047

Link: CVE-2020-35499

cve-icon Redhat

Severity : Moderate

Publid Date: 2020-12-17T17:00:00Z

Links: CVE-2020-35499 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses