CVE-2018-20976 Information

Description

An issue was discovered in fs/xfs/xfs_super.c in the Linux kernel before 4.18. A use after free exists related to xfs_fs_fill_super failure.

CVSS Vector

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Reference

http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00064.html http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00066.html http://packetstormsecurity.com/files/154951/Kernel-Live-Patch-Security-Notice-LSN-0058-1.html http://packetstormsecurity.com/files/155212/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html https://access.redhat.com/errata/RHSA-2020:0178 https://access.redhat.com/errata/RHSA-2020:0543 https://access.redhat.com/errata/RHSA-2020:0592 https://access.redhat.com/errata/RHSA-2020:0609 https://access.redhat.com/errata/RHSA-2020:0661 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c9fbd7bbc23dbdd73364be4d045e5d3612cf6e82 https://lists.debian.org/debian-lts-announce/2019/09/msg00025.html https://lists.debian.org/debian-lts-announce/2020/03/msg00001.html https://seclists.org/bugtraq/2019/Nov/11 https://security.netapp.com/advisory/ntap-20190905-0002/ https://support.f5.com/csp/article/K10269585?utm_source=f5support&utm_medium=RSS https://usn.ubuntu.com/4144-1/ https://usn.ubuntu.com/4145-1/

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