CVE-2020-27815 Information

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.

CVSS Vector

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

Reference

https://www.openwall.com/lists/oss-security/2020/11/30/5 https://www.openwall.com/lists/oss-security/2020/12/28/1 http://www.openwall.com/lists/oss-security/2020/11/30/5 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c61b3e4839007668360ed8b87d7da96d2e59fc6c https://www.debian.org/security/2021/dsa-4843 https://bugzilla.redhat.com/show_bug.cgi?id=1897668 http://www.openwall.com/lists/oss-security/2020/12/28/1 https://lists.debian.org/debian-lts-announce/2021/02/msg00018.html https://lists.debian.org/debian-lts-announce/2021/03/msg00010.html https://security.netapp.com/advisory/ntap-20210702-0004/

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

7.8