CVE & CISA-KEV Catalog

CVE-2018-1120

LOWEPSS 94th pctl
2.8
CVSS v3
NVD

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).

CWE-122Heap-based Buffer OverflowCWE-119Buffer Overflow

How to fix

Remediation Available
linuxDebian
Fixed in:4.16.12-1CVE-2018-1120
Fixed in:4.16.12-1CVE-2018-1120
Fixed in:4.16.12-1CVE-2018-1120
Fixed in:4.16.12-1CVE-2018-1120
linuxUbuntu
Fixed in:4.4.0-143.169USN-3910-1
Fixed in:4.15.0-33.36USN-3752-1
linux-awsUbuntu
Fixed in:4.4.0-1039.42USN-3910-2
Fixed in:4.4.0-1077.87USN-3910-1
Fixed in:4.15.0-1020.20USN-3752-1
linux-azureUbuntu
Fixed in:4.15.0-1022.22~16.04.1USN-3752-3
Fixed in:4.15.0-1022.23USN-3752-3
linux-gcpUbuntu
Fixed in:4.15.0-1018.19~16.04.2USN-3752-3
Fixed in:4.15.0-1018.19USN-3752-1
linux-hweUbuntu
Fixed in:4.15.0-33.36~16.04.1USN-3752-2
linux-image-4.15.0-1020-awsUbuntu
Fixed in:4.15.0-1020.20USN-3752-1
linux-image-4.15.0-1020-kvmUbuntu
Fixed in:4.15.0-1020.20USN-3752-1
linux-image-4.15.0-1021-raspi2Ubuntu
Fixed in:4.15.0-1021.23USN-3752-1
linux-image-4.15.0-33-genericUbuntu
Fixed in:4.15.0-33.36~16.04.1USN-3752-2
Fixed in:4.15.0-33.36USN-3752-1
linux-image-4.15.0-33-generic-lpaeUbuntu
Fixed in:4.15.0-33.36~16.04.1USN-3752-2
Fixed in:4.15.0-33.36USN-3752-1
linux-image-4.15.0-33-lowlatencyUbuntu
Fixed in:4.15.0-33.36~16.04.1USN-3752-2
Fixed in:4.15.0-33.36USN-3752-1
linux-image-4.15.0-33-snapdragonUbuntu
Fixed in:4.15.0-33.36USN-3752-1
linux-image-4.4.0-1039-awsUbuntu
Fixed in:4.4.0-1039.42USN-3910-2
linux-image-4.4.0-1041-kvmUbuntu
Fixed in:4.4.0-1041.47USN-3910-1
linux-image-4.4.0-1077-awsUbuntu
Fixed in:4.4.0-1077.87USN-3910-1
linux-image-4.4.0-1104-raspi2Ubuntu
Fixed in:4.4.0-1104.112USN-3910-1
linux-image-4.4.0-1108-snapdragonUbuntu
Fixed in:4.4.0-1108.113USN-3910-1
linux-image-4.4.0-143-genericUbuntu
Fixed in:4.4.0-143.169~14.04.2USN-3910-2
Fixed in:4.4.0-143.169USN-3910-1
linux-image-4.4.0-143-generic-lpaeUbuntu
Fixed in:4.4.0-143.169~14.04.2USN-3910-2
Fixed in:4.4.0-143.169USN-3910-1
linux-image-4.4.0-143-lowlatencyUbuntu
Fixed in:4.4.0-143.169~14.04.2USN-3910-2
Fixed in:4.4.0-143.169USN-3910-1
linux-image-4.4.0-143-powerpc-e500mcUbuntu
Fixed in:4.4.0-143.169~14.04.2USN-3910-2
Fixed in:4.4.0-143.169USN-3910-1
linux-image-4.4.0-143-powerpc-smpUbuntu
Fixed in:4.4.0-143.169~14.04.2USN-3910-2
Fixed in:4.4.0-143.169USN-3910-1
linux-image-4.4.0-143-powerpc64-embUbuntu
Fixed in:4.4.0-143.169~14.04.2USN-3910-2
Fixed in:4.4.0-143.169USN-3910-1
linux-image-4.4.0-143-powerpc64-smpUbuntu
Fixed in:4.4.0-143.169~14.04.2USN-3910-2
Fixed in:4.4.0-143.169USN-3910-1
linux-image-awsUbuntu
Fixed in:4.4.0.1039.40USN-3910-2
Fixed in:4.4.0.1077.80USN-3910-1
linux-image-genericUbuntu
Fixed in:4.4.0.143.151USN-3910-1
linux-image-generic-lpaeUbuntu
Fixed in:4.4.0.143.151USN-3910-1
linux-image-generic-lpae-lts-xenialUbuntu
Fixed in:4.4.0.143.125USN-3910-2
linux-image-generic-lts-xenialUbuntu
Fixed in:4.4.0.143.125USN-3910-2
linux-image-kvmUbuntu
Fixed in:4.4.0.1041.41USN-3910-1
linux-image-lowlatencyUbuntu
Fixed in:4.4.0.143.151USN-3910-1
linux-image-lowlatency-lts-xenialUbuntu
Fixed in:4.4.0.143.125USN-3910-2
linux-image-powerpc-e500mcUbuntu
Fixed in:4.4.0.143.151USN-3910-1
linux-image-powerpc-e500mc-lts-xenialUbuntu
Fixed in:4.4.0.143.125USN-3910-2
linux-image-powerpc-smpUbuntu
Fixed in:4.4.0.143.151USN-3910-1
linux-image-powerpc-smp-lts-xenialUbuntu
Fixed in:4.4.0.143.125USN-3910-2
linux-image-powerpc64-embUbuntu
Fixed in:4.4.0.143.151USN-3910-1
linux-image-powerpc64-emb-lts-xenialUbuntu
Fixed in:4.4.0.143.125USN-3910-2
linux-image-powerpc64-smpUbuntu
Fixed in:4.4.0.143.151USN-3910-1
linux-image-powerpc64-smp-lts-xenialUbuntu
Fixed in:4.4.0.143.125USN-3910-2
linux-image-raspi2Ubuntu
Fixed in:4.4.0.1104.104USN-3910-1
linux-image-snapdragonUbuntu
Fixed in:4.4.0.1108.100USN-3910-1
linux-image-virtualUbuntu
Fixed in:4.4.0.143.151USN-3910-1
linux-image-virtual-lts-xenialUbuntu
Fixed in:4.4.0.143.125USN-3910-2
linux-kvmUbuntu
Fixed in:4.4.0-1041.47USN-3910-1
Fixed in:4.15.0-1020.20USN-3752-1
linux-lts-xenialUbuntu
Fixed in:4.4.0-143.169~14.04.2USN-3910-2
linux-oemUbuntu
Fixed in:4.15.0-1017.20USN-3752-3
linux-raspi2Ubuntu
Fixed in:4.4.0-1104.112USN-3910-1
Fixed in:4.15.0-1021.23USN-3752-1
linux-snapdragonUbuntu
Fixed in:4.4.0-1108.113USN-3910-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal
Attack ComplexityLow
Privileges RequiredLow
User InteractionRequired
ScopeUnchanged

Impact

ConfidentialityNone
IntegrityNone
AvailabilityLow

CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L

Exploit Intelligence

7.29%probability of exploitation in 30 days
94thpercentile

High risk: more likely to be exploited than 94% of all known CVEs.

References

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.