Is CVE-2018-12021 in the CISA KEV catalog?

No. CVE-2018-12021 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2018-12021?

CVE-2018-12021 has a CVSS v3 base score of 6.5 (MEDIUM).

What is the EPSS score for CVE-2018-12021?

CVE-2018-12021 has an EPSS score of 1.60% (73th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2018-12021?

Upgrade singularity-container on debian unstable to 2.5.2-1 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2018-12021

MEDIUMEPSS 73th pctl

6.5

CVSS v3

NVD

Description

Singularity 2.3.0 through 2.5.1 is affected by an incorrect access control on systems supporting overlay file system. When using the overlay option, a malicious user may access sensitive information by exploiting a few specific Singularity features.

CWE-200Information Exposure

How to fix

Remediation Available

singularity-containerDebian

Fixed in:2.5.2-1CVE-2018-12021

singularity-containerUbuntu

Fixed in:2.4.2-4ubuntu0.1~esm1USN-4840-1

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 VectorNetwork

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityNone

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

Exploit Intelligence

1.60%probability of exploitation in 30 days

73rdpercentile

Elevated risk: more likely to be exploited than 73% of all known CVEs.

References

Third-Party Advisory1

github.com

Other references1

openwall.com

Related Vulnerabilities

Other CWE-200 (Information Exposure) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-24919	High	8.6	100%	KEV + Ransom	-
CVE-2020-14181	Medium	5.3	100%	-	Fix
CVE-2021-34429	Medium	5.3	99%	-	Fix
CVE-2018-11409	Medium	5.3	98%	-	-
CVE-2021-41277	Critical	10.0	97%	KEV	-
CVE-2016-2183	High	7.5	96%	-	Fix

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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.