USN-8924-1: Linux kernel vulnerabilities
Ubuntu patches old Linux kernel flaws that leak PIDs or crash via malicious XFS and f2fs images.
22
CVE-2018-13093
- CVSS 3.0
- 5.5 medium
- EPSS
- 2%p76
- Published
- ·
- Modified
Description · NVD
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.