What is CVE-2020-35499?

CVE-2020-35499 is a Medium severity Linux kernel vulnerability with a CVSS score of 6.7 out of 10, classified as a NULL Pointer Dereference flaw (CWE-476). CVE-2020-35499 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2020-35499?

CVE-2020-35499 has a CVSS score of 6.7 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

Is there a patch available for CVE-2020-35499?

No patch is currently available for CVE-2020-35499. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2020-35499 actively exploited?

CVE-2020-35499 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is NULL Pointer Dereference (CWE-476)?

The product dereferences a pointer that it expects to be valid but is NULL, typically causing a crash. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/476.html

CVE-2020-35499

Medium

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.

Package Linux Kernel

Published 2021-02-19

Last modified 2024-11-21

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

6.7

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Vector string

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Weakness type

CWE-476

CVE-2020-35499 is a NULL Pointer Dereference vulnerability

What is NULL Pointer Dereference?

The product dereferences a pointer that it expects to be valid but is NULL, typically causing a crash. Learn more on MITRE CWE

References

The following references provide additional information about CVE-2020-35499 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Kernel patch commit
https://bugzilla.redhat.com/show_bug.cgi?id=1910048
Patch

Details

CVE ID CVE-2020-35499

Severity Medium

CVSS score 6.7 / 10

CVSS version 3.1

Published 2021-02-19

Modified 2024-11-21

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2020-35499?

CVE-2020-35499 is a Medium severity Linux kernel vulnerability with a CVSS score of 6.7 out of 10 , classified as a NULL Pointer Dereference flaw (CWE-476) . CVE-2020-35499 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2020-35499?

CVE-2020-35499 has a CVSS score of 6.7 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
Is there a patch available for CVE-2020-35499?

No patch is currently available for CVE-2020-35499. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2020-35499 actively exploited?

No — CVE-2020-35499 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is NULL Pointer Dereference (CWE-476)?

The product dereferences a pointer that it expects to be valid but is NULL, typically causing a crash. View CWE-476 on MITRE CWE →