CVE-2020-27815 Detail

Current Description

A flaw was found in the JFS filesystem code in the Linux Kernel which allows a local attacker with the ability to set extended attributes to panic the system, causing memory corruption or escalating privileges. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.


View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score:  7.8 HIGH
Vector:  CVSS:3.1/AV:L/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
http://www.openwall.com/lists/oss-security/2020/11/30/5 Exploit  Mailing List  Third Party Advisory 
http://www.openwall.com/lists/oss-security/2020/12/28/1 Exploit  Mailing List  Patch  Third Party Advisory 
https://bugzilla.redhat.com/show_bug.cgi?id=1897668, Broken Link 
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c61b3e4839007668360ed8b87d7da96d2e59fc6c Patch  Vendor Advisory 
https://lists.debian.org/debian-lts-announce/2021/02/msg00018.html Mailing List  Third Party Advisory 
https://lists.debian.org/debian-lts-announce/2021/03/msg00010.html Mailing List  Third Party Advisory 
https://www.debian.org/security/2021/dsa-4843 Third Party Advisory 
https://www.openwall.com/lists/oss-security/2020/11/30/5, Exploit  Mailing List  Third Party Advisory 
https://www.openwall.com/lists/oss-security/2020/12/28/1, Exploit  Mailing List  Patch  Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer Provider acceptance level Red Hat, Inc.  

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Change History

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Quick Info

CVE Dictionary Entry:
CVE-2020-27815
NVD Published Date:
05/26/2021
NVD Last Modified:
06/03/2021
Source:
Red Hat, Inc.