medium5.5
CVE-2018-1094
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 attacke…
Impact
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
| Vendor | Product | Affected versions |
|---|---|---|
| Linux | Linux Kernel | through 4.15.15 |
| Canonical | Ubuntu Linux | Versions 16.04, 18.04 |
| Redhat | Enterprise Linux Desktop | Version 7.0 |
| Redhat | Enterprise Linux Server | Version 7.0 |
| Redhat | Enterprise Linux Workstation | Version 7.0 |
Weakness classification
References
- NVD record
- CVE.org record
- http://openwall.com/lists/oss-security/2018/03/29/1
- https://access.redhat.com/errata/RHSA-2018:2948
- https://access.redhat.com/errata/RHSA-2018:3083
- https://access.redhat.com/errata/RHSA-2018:3096
- https://bugzilla.kernel.org/show_bug.cgi?id=199183
- https://bugzilla.redhat.com/show_bug.cgi?id=1560788
- https://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4.git/commit/?id=18db4b4e6fc31eda838dd1c1296d67dbcb3dc957
- https://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4.git/commit/?id=a45403b51582a87872927a3e0fc0a389c26867f1
- 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://access.redhat.com/errata/RHSA-2018:3083
- https://access.redhat.com/errata/RHSA-2018:3096
- https://bugzilla.kernel.org/show_bug.cgi?id=199183
- https://bugzilla.redhat.com/show_bug.cgi?id=1560788
- https://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4.git/commit/?id=18db4b4e6fc31eda838dd1c1296d67dbcb3dc957
- https://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4.git/commit/?id=a45403b51582a87872927a3e0fc0a389c26867f1
- https://usn.ubuntu.com/3695-1/
- https://usn.ubuntu.com/3695-2/