CVE-2018-13093
linux-4.9 - security update
5.5
MEDIUM
CVSS 3.1
EPSS 0.14%
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.
How to fix CVE-2018-13093
To remediate CVE-2018-13093, upgrade the affected package to a fixed version below.
- —upgrade to 4.17.14-1 or later
- —upgrade to 4.9.210-1~deb8u1 or later
Is CVE-2018-13093 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 4.17.14-1
- from 0, < 4.9.210-1~deb8u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.5 | CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |