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CVE-2018-1094

CVE-2018-1094

EPSS 2.1%
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.
Affected products
n/a · Linux kernel through version 4.15

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References
http://openwall.com/lists/oss-security/2018/03/29/1https://access.redhat.com/errata/RHSA-2018:2948https://access.redhat.com/errata/RHSA-2018:3083https://access.redhat.com/errata/RHSA-2018:3096https://bugzilla.kernel.org/show_bug.cgi?id=199183https://bugzilla.redhat.com/show_bug.cgi?id=1560788https://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4.git/commit/?id=18db4b4e6fc31eda838dd1c1296d67dbcb3dc957https://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4.git/commit/?id=a45403b51582a87872927a3e0fc0a389c26867f1https://usn.ubuntu.com/3695-1/https://usn.ubuntu.com/3695-2/