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CVE-2020-8648

Good to know:

Date: February 5, 2020

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.

Language: C

Severity Score

7.1

Related Resources (16)

Url: https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html

Url: https://usn.ubuntu.com/4342-1/

Url: https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html

Url: https://people.canonical.com/~ubuntu-security/cve/CVE-2020-8648

Url: https://www.debian.org/security/2020/dsa-4698

Url: https://nvd.nist.gov/vuln/detail/CVE-2020-8648

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

Url: https://usn.ubuntu.com/4345-1/

Url: https://security.netapp.com/advisory/ntap-20200924-0004/

Url: https://usn.ubuntu.com/4346-1/

Url: https://usn.ubuntu.com/4344-1/

Url: https://bugzilla.kernel.org/show_bug.cgi?id=206361

Url: https://access.redhat.com/security/cve/CVE-2020-8648

Url: https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html

Url: https://security-tracker.debian.org/tracker/CVE-2020-8648

Url: https://www.mend.io/vulnerability-database/CVE-2020-8648

Severity Score

7.1

Weakness Type (CWE)

Use After Free

CWE-416

Top Fix

Upgrade Version

Upgrade to version linux-yocto - 4.8.26+gitAUTOINC+1c60e003c7_27efc3ba68;linux-libc-headers - 5.8

CVSS v3.1

Base Score:	7.1
Attack Vector (AV):	LOCAL
Attack Complexity (AC):	LOW
Privileges Required (PR):	LOW
User Interaction (UI):	NONE
Scope (S):	UNCHANGED
Confidentiality (C):	HIGH
Integrity (I):	NONE
Availability (A):	HIGH

CVSS v2

Base Score:	3.6
Access Vector (AV):	LOCAL
Access Complexity (AC):	LOW
Authentication (AU):	NONE
Confidentiality (C):	PARTIAL
Integrity (I):	NONE
Availability (A):	PARTIAL
Additional information:

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