7.1

CVE-2018-1092

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version <= 4.15.15
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 2% 0.782
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.5 1.8 3.6
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
nvd@nist.gov 7.1 8.6 6.9
AV:N/AC:M/Au:N/C:N/I:N/A:C
CWE-476 NULL Pointer Dereference

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

https://access.redhat.com/errata/RHSA-2018:3083
https://access.redhat.com/errata/RHSA-2018:3096
https://usn.ubuntu.com/3754-1/
https://lists.debian.org/debian-lts-announce/2018/05/msg00000.html
https://www.debian.org/security/2018/dsa-4187
https://access.redhat.com/errata/RHSA-2018:2948
https://www.debian.org/security/2018/dsa-4188
https://usn.ubuntu.com/3677-1/
https://usn.ubuntu.com/3677-2/
https://usn.ubuntu.com/3676-1/
https://usn.ubuntu.com/3676-2/
https://usn.ubuntu.com/3678-1/
https://usn.ubuntu.com/3678-2/
https://usn.ubuntu.com/3678-3/
https://usn.ubuntu.com/3678-4/
http://openwall.com/lists/oss-security/2018/03/29/1
Third Party Advisory
Mailing List
https://bugzilla.kernel.org/show_bug.cgi?id=199179
Issue Tracking
https://bugzilla.kernel.org/show_bug.cgi?id=199275
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=1560777
Third Party Advisory
Issue Tracking
https://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4.git/commit/?id=8e4b5eae5decd9dfe5a4ee369c22028f90ab4c44
Patch