NULL Pointer Dereference The advisory has been revoked - it doesn't affect any version of package kernel-headers (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-RHEL7-KERNELHEADERS-7966189
- published14 Sept 2024
- disclosed22 Mar 2018
Introduced: 22 Mar 2018
CVE-2018-1094 (opens in a new tab)Amendment
The Red Hat security team deemed this advisory irrelevant for RHEL:7.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-headers package and not the kernel-headers package as distributed by RHEL.
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/security/cve/CVE-2018-1094
- http://openwall.com/lists/oss-security/2018/03/29/1
- 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://access.redhat.com/errata/RHSA-2018:3083
- https://usn.ubuntu.com/3695-1/
- https://usn.ubuntu.com/3695-2/