CVE & CISA-KEV Catalog

CVE-2018-1122

HIGH
7.3
CVSS v3
NVD

Description

procps-ng before version 3.3.15 is vulnerable to a local privilege escalation in top. If a user runs top with HOME unset in an attacker-controlled directory, the attacker could achieve privilege escalation by exploiting one of several vulnerabilities in the config_file() function.

How to fix

Remediation Available
procpsDebian
Fixed in:2:3.3.15-1CVE-2018-1122
Fixed in:2:3.3.15-1CVE-2018-1122
Fixed in:2:3.3.15-1CVE-2018-1122
Fixed in:2:3.3.15-1CVE-2018-1122
libprocps3Ubuntu
Fixed in:1:3.3.9-1ubuntu2.3USN-3658-1
libprocps4Ubuntu
Fixed in:2:3.3.10-4ubuntu2.4USN-3658-1
libprocps6Ubuntu
Fixed in:2:3.3.12-3ubuntu1.1USN-3658-1
procpsUbuntu
Fixed in:1:3.3.9-1ubuntu2.3USN-3658-1
Fixed in:2:3.3.10-4ubuntu2.4USN-3658-1
Fixed in:2:3.3.12-3ubuntu1.1USN-3658-1

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

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

ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

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

Exploit Intelligence

1.30%probability of exploitation in 30 days
68thpercentile

Moderate risk: more likely to be exploited than 68% of all known CVEs.

References

Related Vulnerabilities

Other CWE-829 vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2018-17246Critical9.882%-Fix
CVE-2024-5762High8.172%--
CVE-2018-7422High7.562%--
CVE-2023-2249High8.861%--
CVE-2025-32463Critical9.356%KEVFix
CVE-2026-0770Critical9.856%KEV-

Common questions

How do I fix CVE-2018-1122?

Published advisories record a fix for 5 affected products. The "How to fix" section on this page lists the fixed version and source advisory for each one, so apply the entry matching what you actually run.

Is CVE-2018-1122 being actively exploited?

Not that we know of. CVE-2018-1122 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 1.3% is the estimated probability that it will be exploited in the next 30 days. That is higher than 68% of all scored CVEs.

How severe is CVE-2018-1122?

CVE-2018-1122 has a CVSS v3 base score of 7.3, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2018-1122 affect?

Published advisories record a fix for procps (Debian), libprocps3 (Ubuntu), libprocps4 (Ubuntu), libprocps6 (Ubuntu), and 1 more. Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

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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.