Detections
Analytics
CVE-2018-1120
medium
Description
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
https://usn.ubuntu.com/3910-2/
https://usn.ubuntu.com/3910-1/
https://usn.ubuntu.com/3752-3/
https://usn.ubuntu.com/3752-2/
https://usn.ubuntu.com/3752-1/
https://security.gentoo.org/glsa/201805-14
https://lists.debian.org/debian-lts-announce/2018/07/msg00020.html
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1120
https://access.redhat.com/errata/RHSA-2018:3096
https://access.redhat.com/errata/RHSA-2018:3083