Vulnerability CVE-2018-13406
Published: 2018-07-06

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.

Type:

CWE-190

 (Integer Overflow or Wraparound)

CVSS2 => (AV:L/AC:L/Au:N/C:C/I:C/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.2/10
10/10
3.9/10
Exploit range
Attack complexity
Authentication
Local
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Complete
Complete
Complete
Affected software
Linux -> Linux kernel 
Debian -> Debian linux 
Canonical -> Ubuntu linux 

 References:
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9f645bcc566a1e9f921bdae7528a01ced5bc3713
http://www.securityfocus.com/bid/104685
http://www.securitytracker.com/id/1041355
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.17.4
https://github.com/torvalds/linux/commit/9f645bcc566a1e9f921bdae7528a01ced5bc3713
https://lists.debian.org/debian-lts-announce/2019/03/msg00017.html
https://usn.ubuntu.com/3752-1/
https://usn.ubuntu.com/3752-2/
https://usn.ubuntu.com/3752-3/
https://usn.ubuntu.com/3753-1/
https://usn.ubuntu.com/3753-2/
https://usn.ubuntu.com/3754-1/
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