CVE-2018-1092
Last modified
CVE-2018-1092 is a vulnerability of currently unknown severity. The ext4_iget function in fs/ext4/inode.c in the Linux kernel through 4.15.15 mishandles the case of a root directory with a zero i_links_count, which allows attackers to cause a denial of service (ext4_process_freed_data NULL pointer dereference and OOPS) via a crafted ext4 image.. EPSS estimates a 2.00% chance of exploitation in the next 30 days.
Description
The ext4_iget function in fs/ext4/inode.c in the Linux kernel through 4.15.15 mishandles the case of a root directory with a zero i_links_count, which allows attackers to cause a denial of service (ext4_process_freed_data NULL pointer dereference and OOPS) via a crafted ext4 image.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | <= 4.15.15 |
References
- http://openwall.com/lists/oss-security/2018/03/29/1Mailing List, Third Party Advisory
- https://bugzilla.kernel.org/show_bug.cgi?id=199179Issue Tracking
- https://bugzilla.kernel.org/show_bug.cgi?id=199275Issue Tracking
- https://bugzilla.redhat.com/show_bug.cgi?id=1560777Issue Tracking, Third Party Advisory
- http://openwall.com/lists/oss-security/2018/03/29/1Mailing List, Third Party Advisory
- https://bugzilla.kernel.org/show_bug.cgi?id=199179Issue Tracking
- https://bugzilla.kernel.org/show_bug.cgi?id=199275Issue Tracking
- https://bugzilla.redhat.com/show_bug.cgi?id=1560777Issue Tracking, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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