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.
                
            References
                    | Link | Resource | 
|---|---|
| https://access.redhat.com/errata/RHSA-2018:2948 | Third Party Advisory | 
| https://access.redhat.com/errata/RHSA-2018:3083 | Third Party Advisory | 
| https://access.redhat.com/errata/RHSA-2018:3096 | Third Party Advisory | 
| https://lists.debian.org/debian-lts-announce/2018/05/msg00000.html | Mailing List Third Party Advisory | 
| https://patchwork.freedesktop.org/patch/211845/ | Issue Tracking Patch Third Party Advisory | 
| https://research.checkpoint.com/mmap-vulnerabilities-linux-kernel/ | Third Party Advisory | 
| https://usn.ubuntu.com/3654-1/ | Third Party Advisory | 
| https://usn.ubuntu.com/3654-2/ | Third Party Advisory | 
| https://usn.ubuntu.com/3656-1/ | Third Party Advisory | 
| https://usn.ubuntu.com/3674-1/ | Third Party Advisory | 
| https://usn.ubuntu.com/3674-2/ | Third Party Advisory | 
| https://usn.ubuntu.com/3677-1/ | Third Party Advisory | 
| https://usn.ubuntu.com/3677-2/ | Third Party Advisory | 
| https://www.debian.org/security/2018/dsa-4187 | Third Party Advisory | 
| https://www.debian.org/security/2018/dsa-4188 | Third Party Advisory | 
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Information
                Published : 2018-04-23 19:29
Updated : 2023-03-03 19:22
NVD link : CVE-2018-8781
Mitre link : CVE-2018-8781
CVE.ORG link : CVE-2018-8781
JSON object : View
Products Affected
                redhat
- enterprise_linux_server
 - enterprise_linux_desktop
 - enterprise_linux_workstation
 
canonical
- ubuntu_linux
 
linux
- linux_kernel
 
debian
- debian_linux
 
CWE
                
                    
                        
                        CWE-190
                        
            Integer Overflow or Wraparound
