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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,…
Medium5.5EPSS 2.1%
- Published
- Updated
- Reserved
- Assigned by
- redhat
Description
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 2.1% · top 18% of all CVEs (5 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Weakness
- NULL pointer dereference
- CWE-476 (opens in a new tab)All about CWE-476 and its CVEs
Affected products
Linux kernel through version 4.15
- affected Linux kernel through version 4.15
References (10)
- https://bugzilla.redhat.com/show_bug.cgi?id=1560788 (opens in a new tab)x_refsource_MISCx_transferred
- RHSA-2018:3083 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- https://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4.git/commit/?id=18db4b4e6fc31eda838dd1c1296d67dbcb3dc957 (opens in a new tab)x_refsource_MISCx_transferred
- http://openwall.com/lists/oss-security/2018/03/29/1 (opens in a new tab)x_refsource_MISCx_transferred
- USN-3695-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- https://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4.git/commit/?id=a45403b51582a87872927a3e0fc0a389c26867f1 (opens in a new tab)x_refsource_MISCx_transferred
- USN-3695-2 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- https://bugzilla.kernel.org/show_bug.cgi?id=199183 (opens in a new tab)x_refsource_MISCx_transferred
- RHSA-2018:2948 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2018:3096 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2018-1094)Record last updated .