National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2018-1093 Detail

Current Description

The ext4_valid_block_bitmap function in fs/ext4/balloc.c in the Linux kernel through 4.15.15 allows attackers to cause a denial of service (out-of-bounds read and system crash) via a crafted ext4 image because balloc.c and ialloc.c do not validate bitmap block numbers.

Source:  MITRE
View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score: 5.5 MEDIUM
Vector:  CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://openwall.com/lists/oss-security/2018/03/29/1 Mailing List
https://bugzilla.kernel.org/show_bug.cgi?id=199181 Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=1560782 Issue Tracking Third Party Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4.git/commit/?id=7dac4a1726a9c64a517d595c40e95e2d0d135f6f Patch
https://lists.debian.org/debian-lts-announce/2018/06/msg00000.html
https://lists.debian.org/debian-lts-announce/2018/07/msg00015.html
https://lists.debian.org/debian-lts-announce/2018/07/msg00016.html
https://usn.ubuntu.com/3676-1/
https://usn.ubuntu.com/3676-2/
https://usn.ubuntu.com/3752-1/
https://usn.ubuntu.com/3752-2/
https://usn.ubuntu.com/3752-3/
https://usn.ubuntu.com/3754-1/
https://www.debian.org/security/2018/dsa-4188

Weakness Enumeration

CWE-ID CWE Name Source
CWE-125 Out-of-bounds Read NIST  

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
Up to (including)
4.15.15


Change History

7 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2018-1093
NVD Published Date:
04/01/2018
NVD Last Modified:
08/29/2018