A flaw was found affecting the Linux kernel before version 4.17. By mmap()ing a FUSE-backed file onto a process's memory containing command line arguments (or environment strings), an attacker can cause utilities from psutils or procps (such as ps, w) or any other program which makes a read() call to the /proc/<pid>/cmdline (or /proc/<pid>/environ) files to block indefinitely (denial of service) or for some controlled time (as a synchronization primitive for other attacks).
References
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Information
Published : 2018-06-20 06:29
Updated : 2019-10-09 16:38
NVD link : CVE-2018-1120
Mitre link : CVE-2018-1120
JSON object : View
CWE
CWE-119
Improper Restriction of Operations within the Bounds of a Memory Buffer
Products Affected
redhat
- enterprise_linux_desktop
- enterprise_linux_workstation
- virtualization_host
- enterprise_linux_server
canonical
- ubuntu_linux
linux
- linux_kernel
debian
- debian_linux