Integer overflow in Linux Kernel
CVE-2018-13406
An integer overflow in the uvesafb_setcmap function in drivers/video/fbdev/uvesafb.c in the Linux kernel before 4.17.4 could result in local attackers being able to crash the kernel or potentially elevate privileges because kmalloc_array is not used.
Vulnerability class: Integer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.005 (42.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 43rd percentile — 42.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Linux Kernel
- Canonical Ubuntu Linux — versions 14.04, 16.04, 18.04
- Debian Linux — versions 8.0
Weakness classification (CWE)
References
- usn.ubuntu.com/3752-2/ (vendor-advisory, Third Party Advisory)
- usn.ubuntu.com/3752-3/ (vendor-advisory, Third Party Advisory)
- usn.ubuntu.com/3753-2/ (vendor-advisory, Third Party Advisory)
- cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.17.4 (Release Notes)
- usn.ubuntu.com/3754-1/ (vendor-advisory, Third Party Advisory)
- git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/ (Patch)
- github.com/torvalds/linux/commit/9f645bcc566a1e9f921bdae7528a01ced5bc3713 (Patch)
- www.securitytracker.com/id/1041355 (VDB Entry, Third Party Advisory, vdb-entry)
- usn.ubuntu.com/3752-1/ (vendor-advisory, Third Party Advisory)
- usn.ubuntu.com/3753-1/ (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2018-13406?
- CVE-2018-13406 is a high-severity vulnerability in Linux Kernel, classified under Integer Overflow or Wraparound. CVSS score: 7.8/10. Published 2018-07-06.
- How severe is CVE-2018-13406?
- High severity. CVSS v3 base score is 7.8 out of 10.