CVE Vulnerability

CVE-2018-1120

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//cmdline (or /proc//environ) files to block indefinitely (denial of service) or for some controlled time (as a synchronization primitive for other attacks).

3.5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 6.8 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

Scope

5.3 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.6 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=7f7ccc2ccc2e70c6054685f5e3522efa81556830 Patch Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1120 Issue Tracking Patch
http://seclists.org/oss-sec/2018/q2/122 Exploit Mailing List
https://www.exploit-db.com/exploits/44806/ Exploit Third Party Advisory
http://www.securityfocus.com/bid/104229 Third Party Advisory VDB Entry
https://lists.debian.org/debian-lts-announce/2018/07/msg00020.html Mailing List Third Party Advisory
https://usn.ubuntu.com/3752-2/ Third Party Advisory
https://usn.ubuntu.com/3752-1/ Third Party Advisory
https://usn.ubuntu.com/3752-3/ Third Party Advisory
https://security.gentoo.org/glsa/201805-14 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3096 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3083 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:2948 Third Party Advisory
https://usn.ubuntu.com/3910-2/
https://usn.ubuntu.com/3910-1/
Configurations

Configuration 1

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
cpe:2.3:a:redhat:virtualization_host:4.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
Information

Published : 2018-06-20 01:29

Updated : 2019-10-09 11:38

NVD link : CVE-2018-1120

Mitre link : CVE-2018-1120

Products Affected
No products.
CWE
CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer