CVE-2018-1092

Published: Apr 2, 2018Modified: Nov 21, 2024

5.5

Vector

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

Exploitability: 1.8 / Impact: 3.6

Source: NVD

Description

The ext4_iget function in fs/ext4/inode.c in the Linux kernel through 4.15.15 mishandles the case of a root directory with a zero i_links_count, which allows attackers to cause a denial of service (ext4_process_freed_data NULL pointer dereference and OOPS) via a crafted ext4 image.

Affected (1)

Products: Linux: Linux Kernel

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Linux Linux Kernel	Up to 4.15.15

Related CWEs

NULL Pointer Dereference

The product dereferences a pointer that it expects to be valid but is NULL.

References (40)

http://openwall.com/lists/oss-security/2018/03/29/1

Source: secalert@redhat.com

Mailing ListThird Party Advisory

https://access.redhat.com/errata/RHSA-2018:2948

Source: secalert@redhat.com

https://access.redhat.com/errata/RHSA-2018:3083

Source: secalert@redhat.com

https://access.redhat.com/errata/RHSA-2018:3096

Source: secalert@redhat.com

https://bugzilla.kernel.org/show_bug.cgi?id=199179

Source: secalert@redhat.com

Issue Tracking

https://bugzilla.kernel.org/show_bug.cgi?id=199275

Source: secalert@redhat.com

Issue Tracking

https://bugzilla.redhat.com/show_bug.cgi?id=1560777

Source: secalert@redhat.com

Issue TrackingThird Party Advisory

https://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4.git/commit/?id=8e4b5eae5decd9dfe5a4ee369c22028f90ab4c44

Source: secalert@redhat.com

Patch

https://lists.debian.org/debian-lts-announce/2018/05/msg00000.html

Source: secalert@redhat.com

https://usn.ubuntu.com/3676-1/

Source: secalert@redhat.com

https://usn.ubuntu.com/3676-2/

Source: secalert@redhat.com

https://usn.ubuntu.com/3677-1/

Source: secalert@redhat.com

https://usn.ubuntu.com/3677-2/

Source: secalert@redhat.com

https://usn.ubuntu.com/3678-1/

Source: secalert@redhat.com

https://usn.ubuntu.com/3678-2/

Source: secalert@redhat.com

https://usn.ubuntu.com/3678-3/

Source: secalert@redhat.com

https://usn.ubuntu.com/3678-4/

Source: secalert@redhat.com

https://usn.ubuntu.com/3754-1/

Source: secalert@redhat.com

https://www.debian.org/security/2018/dsa-4187

Source: secalert@redhat.com

https://www.debian.org/security/2018/dsa-4188

Source: secalert@redhat.com

http://openwall.com/lists/oss-security/2018/03/29/1

Source: af854a3a-2127-422b-91ae-364da2661108

Mailing ListThird Party Advisory

https://access.redhat.com/errata/RHSA-2018:2948

Source: af854a3a-2127-422b-91ae-364da2661108

https://access.redhat.com/errata/RHSA-2018:3083

Source: af854a3a-2127-422b-91ae-364da2661108

https://access.redhat.com/errata/RHSA-2018:3096

Source: af854a3a-2127-422b-91ae-364da2661108

https://bugzilla.kernel.org/show_bug.cgi?id=199179

Source: af854a3a-2127-422b-91ae-364da2661108

Issue Tracking

https://bugzilla.kernel.org/show_bug.cgi?id=199275

Source: af854a3a-2127-422b-91ae-364da2661108

Issue Tracking

https://bugzilla.redhat.com/show_bug.cgi?id=1560777

Source: af854a3a-2127-422b-91ae-364da2661108

Issue TrackingThird Party Advisory

https://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4.git/commit/?id=8e4b5eae5decd9dfe5a4ee369c22028f90ab4c44

Source: af854a3a-2127-422b-91ae-364da2661108

Patch

https://lists.debian.org/debian-lts-announce/2018/05/msg00000.html

Source: af854a3a-2127-422b-91ae-364da2661108

https://usn.ubuntu.com/3676-1/

Source: af854a3a-2127-422b-91ae-364da2661108

https://usn.ubuntu.com/3676-2/

Source: af854a3a-2127-422b-91ae-364da2661108

https://usn.ubuntu.com/3677-1/

Source: af854a3a-2127-422b-91ae-364da2661108

https://usn.ubuntu.com/3677-2/

Source: af854a3a-2127-422b-91ae-364da2661108

https://usn.ubuntu.com/3678-1/

Source: af854a3a-2127-422b-91ae-364da2661108

https://usn.ubuntu.com/3678-2/

Source: af854a3a-2127-422b-91ae-364da2661108

https://usn.ubuntu.com/3678-3/

Source: af854a3a-2127-422b-91ae-364da2661108

https://usn.ubuntu.com/3678-4/

Source: af854a3a-2127-422b-91ae-364da2661108

https://usn.ubuntu.com/3754-1/

Source: af854a3a-2127-422b-91ae-364da2661108

https://www.debian.org/security/2018/dsa-4187

Source: af854a3a-2127-422b-91ae-364da2661108

https://www.debian.org/security/2018/dsa-4188

Source: af854a3a-2127-422b-91ae-364da2661108

Timeline

No history available yet.