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Vulnerability Details : CVE-2018-1095

The ext4_xattr_check_entries function in fs/ext4/xattr.c in the Linux kernel through 4.15.15 does not properly validate xattr sizes, which causes misinterpretation of a size as an error code, and consequently allows attackers to cause a denial of service (get_acl NULL pointer dereference and system crash) via a crafted ext4 image.
Publish Date : 2018-04-01 Last Update Date : 2018-10-31
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- CVSS Scores & Vulnerability Types

CVSS Score
7.1
Confidentiality Impact None (There is no impact to the confidentiality of the system.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact Complete (There is a total shutdown of the affected resource. The attacker can render the resource completely unavailable.)
Access Complexity Medium (The access conditions are somewhat specialized. Some preconditions must be satistified to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Denial Of Service
CWE ID 476

- Products Affected By CVE-2018-1095

# Product Type Vendor Product Version Update Edition Language
1 OS Linux Linux Kernel 4.15.15 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Linux Linux Kernel 1

- References For CVE-2018-1095

https://usn.ubuntu.com/3695-1/
UBUNTU USN-3695-1
https://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4.git/commit/?id=ce3fd194fcc6fbdc00ce095a852f22df97baa401
https://bugzilla.redhat.com/show_bug.cgi?id=1560793
http://openwall.com/lists/oss-security/2018/03/29/1
https://usn.ubuntu.com/3695-2/
UBUNTU USN-3695-2
https://bugzilla.kernel.org/show_bug.cgi?id=199185
https://access.redhat.com/errata/RHSA-2018:2948
REDHAT RHSA-2018:2948

- Metasploit Modules Related To CVE-2018-1095

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)
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