National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2018-1120 Detail

Current 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).

Source:  MITRE
View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score: 5.3 MEDIUM
Vector:  CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Nist CVSS score does not match with CNA score
CNA:  Red Hat, Inc.
Base Score: 2.8 LOW
Vector:  CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://seclists.org/oss-sec/2018/q2/122 Exploit Mailing List Third Party Advisory
http://www.securityfocus.com/bid/104229 Third Party Advisory VDB Entry
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://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1120 Issue Tracking Patch Third Party Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=7f7ccc2ccc2e70c6054685f5e3522efa81556830 Patch Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/07/msg00020.html Mailing List Third Party Advisory
https://security.gentoo.org/glsa/201805-14 Third Party Advisory
https://usn.ubuntu.com/3752-1/ Third Party Advisory
https://usn.ubuntu.com/3752-2/ Third Party Advisory
https://usn.ubuntu.com/3752-3/ Third Party Advisory
https://usn.ubuntu.com/3910-1/
https://usn.ubuntu.com/3910-2/
https://www.exploit-db.com/exploits/44806/ Exploit Third Party Advisory VDB Entry

Weakness Enumeration

CWE-ID CWE Name Source
CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer NIST  
CWE-122 Heap-based Buffer Overflow Red Hat, Inc.  

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
Up to (excluding)
4.17

Configuration 2 ( hide )
 cpe:2.3:a:redhat:virtualization_host:4.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*
     Show Matching CPE(s)

Configuration 3 ( hide )
 cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
     Show Matching CPE(s)

Configuration 4 ( hide )
 cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
     Show Matching CPE(s)


Change History

10 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2018-1120
NVD Published Date:
06/20/2018
NVD Last Modified:
10/09/2019