Is CVE-2018-1000654 in the CISA KEV catalog?

No. CVE-2018-1000654 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2018-1000654?

CVE-2018-1000654 has a CVSS v3 base score of 5.5 (MEDIUM).

What is the EPSS score for CVE-2018-1000654?

CVE-2018-1000654 has an EPSS score of 2.01% (78th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2018-1000654?

Upgrade libtasn1-6 on debian 11 to 4.14-2 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2018-1000654

MEDIUMEPSS 78th pctl

5.5

CVSS v3

NVD

Description

GNU Libtasn1-4.13 libtasn1-4.13 version libtasn1-4.13, libtasn1-4.12 contains a DoS, specifically CPU usage will reach 100% when running asn1Paser against the POC due to an issue in _asn1_expand_object_id(p_tree), after a long time, the program will be killed. This attack appears to be exploitable via parsing a crafted file.

How to fix

Remediation Available

libtasn1-6Debian

Fixed in:4.14-2CVE-2018-1000654

libtasn1-6Ubuntu

Fixed in:4.7-3ubuntu0.16.04.3+esm2USN-5352-1

libtasn1-binUbuntu

Fixed in:4.7-3ubuntu0.16.04.3+esm2USN-5352-1

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 RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

2.01%probability of exploitation in 30 days

78thpercentile

Elevated risk: more likely to be exploited than 78% of all known CVEs.

References

Exploit1

gitlab.com

Third-Party Advisory1

securityfocus.com

Other references3

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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.