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CVE-2018-1120 Details

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).

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:5.3 MEDIUMVector:CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

CNA: [email protected]CVSS-B:2.8 LOWVector: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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URL	Source(s)	Tag(s)
https://access.redhat.com/errata/RHSA-2018:2948	CVE	Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3083	CVE	Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3096	CVE	Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1120	CVE	Issue TrackingPatchThird Party Advisory
http://seclists.org/oss-sec/2018/q2/122	CVE	ExploitMailing ListThird Party Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=7f7ccc2ccc2e70c6054685f5e3522efa81556830	CVE	PatchThird Party Advisory
https://lists.debian.org/debian-lts-announce/2018/07/msg00020.html	CVE	Mailing ListThird Party Advisory
https://security.gentoo.org/glsa/201805-14	CVE	Third Party Advisory
https://usn.ubuntu.com/3752-1/	CVE	Third Party Advisory
https://usn.ubuntu.com/3752-2/	CVE	Third Party Advisory
https://usn.ubuntu.com/3752-3/	CVE	Third Party Advisory
https://usn.ubuntu.com/3910-1/	CVE
https://usn.ubuntu.com/3910-2/	CVE
https://www.exploit-db.com/exploits/44806/	CVE	ExploitThird Party AdvisoryVDB Entry
http://www.securityfocus.com/bid/104229	CVE	Third Party AdvisoryVDB Entry
https://access.redhat.com/errata/RHSA-2018:2948	[email protected]	Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3083	[email protected]	Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3096	[email protected]	Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1120	[email protected]	Issue TrackingPatchThird Party Advisory
http://seclists.org/oss-sec/2018/q2/122	[email protected]	ExploitMailing ListThird Party Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=7f7ccc2ccc2e70c6054685f5e3522efa81556830	[email protected]	PatchThird Party Advisory
https://lists.debian.org/debian-lts-announce/2018/07/msg00020.html	[email protected]	Mailing ListThird Party Advisory
https://security.gentoo.org/glsa/201805-14	[email protected]	Third Party Advisory
https://usn.ubuntu.com/3752-1/	[email protected]	Third Party Advisory
https://usn.ubuntu.com/3752-2/	[email protected]	Third Party Advisory
https://usn.ubuntu.com/3752-3/	[email protected]	Third Party Advisory
https://usn.ubuntu.com/3910-1/	[email protected]
https://usn.ubuntu.com/3910-2/	[email protected]
https://www.exploit-db.com/exploits/44806/	[email protected]	ExploitThird Party AdvisoryVDB Entry
http://www.securityfocus.com/bid/104229	[email protected]	Third Party AdvisoryVDB Entry

see all 30 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-119	Improper Restriction of Operations within the Bounds of a Memory Buffer	[email protected]
CWE-122	Heap-based Buffer Overflow	[email protected]

Affected Products

Product	Versions
linux linux kernel	< 4.17
CPE cpe:2.3:o:linux:linux_kernel:::::::: Remediation No remediation found in references.
redhat virtualization host	4.0
CPE cpe:2.3:a:redhat:virtualization_host:4.0:::::::* Remediation No remediation found in references.
redhat enterprise linux desktop	7.0
CPE cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:::::::* Remediation No remediation found in references.
redhat enterprise linux server	7.0
CPE cpe:2.3:o:redhat:enterprise_linux_server:7.0:::::::* Remediation No remediation found in references.
redhat enterprise linux workstation	7.0
CPE cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:::::::* Remediation No remediation found in references.
debian debian linux	8.0
CPE cpe:2.3:o:debian:debian_linux:8.0:::::::* Remediation No remediation found in references.
canonical ubuntu linux	16.04 18.04
CPE cpe:2.3:o:canonical:ubuntu_linux:16.04::::lts::: cpe:2.3:o:canonical:ubuntu_linux:18.04::::lts::: Remediation No remediation found in references.

Change History

13 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Oct 9, 2019	CVE Modified	[email protected]
Mar 27, 2019	Modified Analysis	[email protected]
Mar 21, 2019	CVE Modified	[email protected]
Oct 31, 2018	CVE Modified	[email protected]
Oct 21, 2018	CVE Modified	[email protected]
Aug 29, 2018	CVE Modified	[email protected]
Aug 24, 2018	CVE Modified	[email protected]
Aug 11, 2018	Initial Analysis	[email protected]
Jul 20, 2018	CVE Modified	[email protected]
Jun 22, 2018	CVE Modified	[email protected]

CVE-2018-1120 Details

Description

Metrics

References to Advisories, Solutions, and Tools

Weakness Enumeration

Affected Products

CPE

Remediation

CPE

Remediation

CPE

Remediation

CPE

Remediation

CPE

Remediation

CPE

Remediation

CPE

Remediation

Change History

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