CVE-2018-1094

MEDIUM

Linux Kernel < 4.15.15 - Denial of Service via ext4 Xattr Inode Hash NULL Pointer Dereference

Title source: llm
STIX 2.1

Description

The ext4_fill_super function in fs/ext4/super.c in the Linux kernel through 4.15.15 does not always initialize the crc32c checksum driver, which allows attackers to cause a denial of service (ext4_xattr_inode_hash NULL pointer dereference and system crash) via a crafted ext4 image.

References (10)

Core 10
Core References
Issue Tracking, Third Party Advisory x_refsource_misc
https://bugzilla.redhat.com/show_bug.cgi?id=1560788
Third Party Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2018:3083
Mailing List, Third Party Advisory x_refsource_misc
http://openwall.com/lists/oss-security/2018/03/29/1
Third Party Advisory vendor-advisory x_refsource_ubuntu
https://usn.ubuntu.com/3695-1/
Third Party Advisory vendor-advisory x_refsource_ubuntu
https://usn.ubuntu.com/3695-2/
Exploit, Issue Tracking x_refsource_misc
https://bugzilla.kernel.org/show_bug.cgi?id=199183
Third Party Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2018:2948
Third Party Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2018:3096

Scores

CVSS v3 5.5
EPSS 0.0029
EPSS Percentile 52.0%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Details

CWE
CWE-476
Status published
Products (6)
canonical/ubuntu_linux 16.04
canonical/ubuntu_linux 18.04
linux/linux_kernel < 4.15.15
redhat/enterprise_linux_desktop 7.0
redhat/enterprise_linux_server 7.0
redhat/enterprise_linux_workstation 7.0
Published Apr 02, 2018
Tracked Since Feb 18, 2026