An issue was discovered in fs/xfs/xfs_icache.c in the Linux kernel...
Vulnerability Description
An issue was discovered in fs/xfs/xfs_icache.c in the Linux kernel through 4.17.3. There is a NULL pointer dereference and panic in lookup_slow() on a NULL inode->i_ops pointer when doing pathwalks on a corrupted xfs image. This occurs because of a lack of proper validation that cached inodes are free during allocation.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
Am I Vulnerable?
Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2018-13093
Credits & Attribution
No credits recorded in the NVD database.
References
- https://git.kernel.org/pub/scm/fs/xfs/xfs-linux.git/commit/?h=for-next&id=afca6c5b2595fc44383919fba740c194b0b76aff
- https://github.com/torvalds/linux/commit/afca6c5b2595fc44383919fba740c194b0b76aff
- https://bugzilla.kernel.org/show_bug.cgi?id=199367
- https://access.redhat.com/errata/RHSA-2019:2043
- https://access.redhat.com/errata/RHSA-2019:2029
- https://usn.ubuntu.com/4094-1/
- https://usn.ubuntu.com/4118-1/
- https://lists.debian.org/debian-lts-announce/2020/03/msg00001.html
More from linux
View All →Affected Vendor
linux
View all reports →Affected Software
Timeline
CVSS Vectors
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.