CVE-2018-13406: Integer Overflow
An integer overflow in the uvesafbsetcmap 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 kmallocarray is not used.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
debian/linuxto a version that resolves this vulnerability.Fixed in 6.1.176-1Fixed in 6.1.187-1Fixed in 6.12.107-1Fixed in 6.12.111-1Fixed in 7.2.9-1Fixed in 7.2.10-1 - Upgrade
Upgrade
Linux kernelto a version that resolves this vulnerability.Fixed in 4.17.4
Event History
Frequently Asked Questions
What is CVE-2018-13406?
CVE-2018-13406 is an integer overflow vulnerability in the uvesafb_setcmap function in the Linux kernel before version 4.17.4.
What is the severity of CVE-2018-13406?
The severity of CVE-2018-13406 is high.
How does CVE-2018-13406 impact the Linux kernel?
CVE-2018-13406 could result in local attackers being able to crash the kernel or potentially elevate privileges.
Which Linux kernels are affected by CVE-2018-13406?
Linux kernels before version 4.17.4 are affected by CVE-2018-13406.
How can I fix CVE-2018-13406?
To fix CVE-2018-13406, update your Linux kernel to version 4.17.4 or later.