What is CVE-2020-8648?

CVE-2020-8648 is a High severity Linux kernel vulnerability with a CVSS score of 7.1 out of 10, classified as a Use After Free flaw (CWE-416). CVE-2020-8648 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2020-8648?

CVE-2020-8648 has a CVSS score of 7.1 out of 10, rated High severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H.

Is there a patch available for CVE-2020-8648?

No patch is currently available for CVE-2020-8648. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2020-8648 actively exploited?

CVE-2020-8648 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Use After Free (CWE-416)?

The product references memory after it has been freed, which may cause it to crash, use unexpected values, or execute code. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/416.html

CVE-2020-8648

High

There is a use-after-free vulnerability in the Linux kernel through 5.5.2 in the n_tty_receive_buf_common function in drivers/tty/n_tty.c.

Package Linux Kernel

Published 2020-02-06

Last modified 2024-11-21

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

7.1

out of 10

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

High

Vector string

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

Weakness type

CWE-416

CVE-2020-8648 is a Use After Free vulnerability

What is Use After Free?

The product references memory after it has been freed, which may cause it to crash, use unexpected values, or execute code. Learn more on MITRE CWE

References

The following references provide additional information about CVE-2020-8648 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Lists
http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html

Mailing List Third Party Advisory
Kernel.org
https://bugzilla.kernel.org/show_bug.cgi?id=206361

Exploit Issue Tracking Vendor Advisory
Debian Security
https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html

Mailing List Third Party Advisory
Debian Security
https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html

Mailing List Third Party Advisory
Debian Security
https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html

Mailing List Third Party Advisory
Security
https://security.netapp.com/advisory/ntap-20200924-0004/

Third Party Advisory
Ubuntu Security
https://usn.ubuntu.com/4342-1/

Third Party Advisory
Ubuntu Security
https://usn.ubuntu.com/4344-1/

Third Party Advisory
Ubuntu Security
https://usn.ubuntu.com/4345-1/

Third Party Advisory
Ubuntu Security
https://usn.ubuntu.com/4346-1/

Third Party Advisory
Debian Security
https://www.debian.org/security/2020/dsa-4698

Third Party Advisory

Details

CVE ID CVE-2020-8648

Severity High

CVSS score 7.1 / 10

CVSS version 3.1

Published 2020-02-06

Modified 2024-11-21

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2020-8648?

CVE-2020-8648 is a High severity Linux kernel vulnerability with a CVSS score of 7.1 out of 10 , classified as an Use After Free flaw (CWE-416) . CVE-2020-8648 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2020-8648?

CVE-2020-8648 has a CVSS score of 7.1 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H.
Is there a patch available for CVE-2020-8648?

No patch is currently available for CVE-2020-8648. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2020-8648 actively exploited?

No — CVE-2020-8648 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is Use After Free (CWE-416)?

The product references memory after it has been freed, which may cause it to crash, use unexpected values, or execute code. View CWE-416 on MITRE CWE →