First published: Mon May 07 2018(Updated: )
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).
Credit: secalert@redhat.com secalert@redhat.com
Affected Software | Affected Version | How to fix |
---|---|---|
Linux Linux kernel | <4.17 | |
Redhat Virtualization Host | =4.0 | |
Redhat Enterprise Linux Desktop | =7.0 | |
Redhat Enterprise Linux Server | =7.0 | |
Redhat Enterprise Linux Workstation | =7.0 | |
Debian Debian Linux | =8.0 | |
Canonical Ubuntu Linux | =16.04 | |
Canonical Ubuntu Linux | =18.04 | |
redhat/kernel | <4.17 | 4.17 |
debian/linux | 5.10.223-1 5.10.226-1 6.1.115-1 6.1.119-1 6.12.5-1 6.12.6-1 |
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