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Category:   OS (Linux)  >   Linux Kernel Vendors:   kernel.org
Linux Kernel Integer Overflow in uvesafb_setcmap() Lets Local Users Cause Denial of Service Conditions on the Target System
SecurityTracker Alert ID:  1041355
SecurityTracker URL:  http://securitytracker.com/id/1041355
CVE Reference:   CVE-2018-13406   (Links to External Site)
Date:  Jul 20 2018
Impact:   Denial of service via local system
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   A vulnerability was reported in the Linux kernel. A local user can cause denial of service conditions on the target system.

A local user can trigger an integer overflow in the uvesafb_setcmap() function in 'drivers/video/fbdev/uvesafb.c' and cause the kernel to crash.

Impact:   A local user can cause denial of service conditions on the target system.
Solution:   The vendor has issued a fix (4.17.4).

The vendor advisory is available at:

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

Vendor URL:  www.kernel.org/ (Links to External Site)
Cause:   Boundary error

Message History:   This archive entry has one or more follow-up message(s) listed below.
Aug 24 2018 (Ubuntu Issues Fix) Linux Kernel Integer Overflow in uvesafb_setcmap() Lets Local Users Cause Denial of Service Conditions on the Target System
Ubuntu has issued a fix for Ubuntu Linux 16.04 LTS.
Aug 24 2018 (Ubuntu Issues Fix) Linux Kernel Integer Overflow in uvesafb_setcmap() Lets Local Users Cause Denial of Service Conditions on the Target System
Ubuntu has issued a fix for Ubuntu Linux 18.04 LTS.
Aug 24 2018 (Ubuntu Issues Fix) Linux Kernel Integer Overflow in uvesafb_setcmap() Lets Local Users Cause Denial of Service Conditions on the Target System
Ubuntu has issued a fix for Ubuntu Linux 14.04 LTS.



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