CVE-2020-14331 Detail

Current Description

A flaw was found in the Linux kernel’s implementation of the invert video code on VGA consoles when a local attacker attempts to resize the console, calling an ioctl VT_RESIZE, which causes an out-of-bounds write to occur. This flaw allows a local user with access to the VGA console to crash the system, potentially escalating their privileges on the system. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.


View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score:  6.6 MEDIUM
Vector:  CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H


NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: NVD Analysts have published a CVSS score for this CVE based on publicly available information at the time of analysis. The CNA has not provided a score within the CVE List.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://bugzilla.redhat.com/show_bug.cgi?id=1858679 Issue Tracking  Third Party Advisory 
https://lists.openwall.net/linux-kernel/2020/07/29/234 Mailing List  Patch  Third Party Advisory 
https://www.openwall.com/lists/oss-security/2020/07/28/2 Exploit  Mailing List  Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-787 Out-of-bounds Write cwe source acceptance level NIST   Contributor acceptance level Red Hat, Inc.  

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Change History

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Quick Info

CVE Dictionary Entry:
CVE-2020-14331
NVD Published Date:
09/15/2020
NVD Last Modified:
09/22/2020
Source:
MITRE