CVE-2018-1094

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    CVE-2018-1094

    Published: 2 Apr 2018Last Modified: 16 Apr 2026

    Summary:

    Details: 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: https://access.redhat.com/errata/RHSA-2018:3083, https://access.redhat.com/errata/RHSA-2018:3096, https://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4.git/commit/?id=18db4b4e6fc31eda838dd1c1296d67dbcb3dc957, https://usn.ubuntu.com/3695-1/, https://usn.ubuntu.com/3695-2/, http://openwall.com/lists/oss-security/2018/03/29/1, https://access.redhat.com/errata/RHSA-2018:2948, https://bugzilla.redhat.com/show_bug.cgi?id=1560788, https://bugzilla.kernel.org/show_bug.cgi?id=199183, https://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4.git/commit/?id=a45403b51582a87872927a3e0fc0a389c26867f1

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: N/A

    Events:

    Introduced- None
    Fixed -None

    Affected versions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2018-1094 | CVE-DB