CVE-2018-13406: Integer Overflow
First published: Fri Jul 06 2018(Updated: )
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.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Linux kernel | >=2.6.24<3.16.58 | |
| Linux Linux kernel | >=3.17<3.18.114 | |
| Linux Linux kernel | >=3.19<4.4.139 | |
| Linux Linux kernel | >=4.5<4.9.111 | |
| Linux Linux kernel | >=4.10<4.14.53 | |
| Linux Linux kernel | >=4.15<4.17.4 | |
| Canonical Ubuntu Linux | =14.04 | |
| Canonical Ubuntu Linux | =16.04 | |
| Canonical Ubuntu Linux | =18.04 | |
| Debian Debian Linux | =8.0 | |
| debian/linux | 5.10.223-1 5.10.226-1 6.1.106-3 6.1.112-1 6.11.4-1 6.11.5-1 |
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Reference Links
- 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/
- https://launchpad.net/bugs/cve/CVE-2018-13406
- https://git.kernel.org/linus/9f645bcc566a1e9f921bdae7528a01ced5bc3713
- https://security-tracker.debian.org/tracker/CVE-2018-13406
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-13406
- https://nvd.nist.gov/vuln/detail/CVE-2018-13406
- https://ubuntu.com/security/CVE-2018-13406
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.
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