CVE-2018-1120

Public on 2018-06-08
Modified on 2018-09-15
Description
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//cmdline (or /proc//environ) files to block indefinitely (denial of service) or for some controlled time (as a synchronization primitive for other attacks).
Severity
Medium
CVSS v3 Base Score
2.8
See breakdown

Affected Packages

Platform Package Release Date Advisory
Amazon Linux 2 kernel 2018-06-08 18:08 ALAS2-2018-1038
Amazon Linux 1 kernel 2018-06-08 18:33 ALAS-2018-1038

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 2.8 CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L
NVD CVSSv2 3.5 AV:N/AC:M/Au:S/C:N/I:N/A:P
NVD CVSSv3 5.3 CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H