Integer overflow in Check Point Software Technologies Ltd. Linux Kernel
CVE-2018-8781
The udl_fb_mmap function in drivers/gpu/drm/udl/udl_fb.c at the Linux kernel version 3.4 and up to and including 4.15 has an integer-overflow vulnerability allowing local users with access to the udldrmfb driver to obtain full read and write permissions on kernel physical pages, resulting in a code execution in kernel space.
Vulnerability class: Integer Overflow
EPSS: 0.005 (40.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Check Point Software Technologies Ltd. Linux Kernel — versions kernel version 3.4 and up to and including 4.15
- Linux Linux_kernel
- Canonical Ubuntu_linux — versions 12.04, 14.04, 16.04
- Debian Debian_linux — versions 7.0, 8.0, 9.0
- Redhat Enterprise_linux_desktop — versions 7.0
- Redhat Enterprise_linux_server — versions 7.0
- Redhat Enterprise_linux_workstation — versions 7.0
Weakness classification (CWE)
Public proof-of-concept exploits
- ARPSyndicate/cvemon
- R0B1NL1N/linux-kernel-exploitation
- kdn111/linux-kernel-exploitation
- khanhdn111/linux-kernel-exploitation
- khanhdz-06/linux-kernel-exploitation
- khanhdz191/linux-kernel-exploitation
- khanhhdz/linux-kernel-exploitation
- khanhhdz06/linux-kernel-exploitation
- khanhnd123/linux-kernel-exploitation
- khnhdz/linux-kernel-exploitation
References
- cve@checkpoint.com (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
- cve@checkpoint.com (Third Party Advisory, x_refsource_MISC)
- cve@checkpoint.com (vendor-advisory, Third Party Advisory, x_refsource_DEBIAN)
- cve@checkpoint.com (x_refsource_UBUNTU, vendor-advisory, Third Party Advisory)
- cve@checkpoint.com (x_refsource_UBUNTU, vendor-advisory, Third Party Advisory)
- cve@checkpoint.com (x_refsource_UBUNTU, vendor-advisory, Third Party Advisory)
- cve@checkpoint.com (vendor-advisory, Third Party Advisory, x_refsource_DEBIAN)
- cve@checkpoint.com (x_refsource_UBUNTU, vendor-advisory, Third Party Advisory)
- cve@checkpoint.com (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
- cve@checkpoint.com (Patch, Third Party Advisory, x_refsource_MISC, Issue Tracking)
Frequently asked questions
- What is CVE-2018-8781?
- CVE-2018-8781 is a high-severity vulnerability in Check Point Software Technologies Ltd. Linux Kernel, classified under Integer Overflow or Wraparound. CVSS score: 7.8/10. Published 2018-04-23.
- How severe is CVE-2018-8781?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2018-8781 known to be exploited?
- 16 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.