CVE-2018-13406

high

Description

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.

References

Advisories
More

https://usn.ubuntu.com/3754-1/

https://usn.ubuntu.com/3753-2/

https://usn.ubuntu.com/3753-1/

https://usn.ubuntu.com/3752-3/

https://usn.ubuntu.com/3752-2/

https://usn.ubuntu.com/3752-1/

https://lists.debian.org/debian-lts-announce/2019/03/msg00017.html

http://www.securitytracker.com/id/1041355

http://www.securityfocus.com/bid/104685

https://github.com/torvalds/linux/commit/9f645bcc566a1e9f921bdae7528a01ced5bc3713

https://euvd.enisa.europa.eu/vulnerability/EUVD-2018-5349

https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.17.4

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9f645bcc566a1e9f921bdae7528a01ced5bc3713

Details

Source: Mitre, NVD

Published: 2018-07-06

Updated: 2026-06-17

Risk Information

CVSS v2

Base Score: 7.2

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C

Severity: High

CVSS v3

Base Score: 7.8

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Severity: High

EPSS

EPSS: 0.00021