Is CVE-2018-20535 in the CISA KEV catalog?

No. CVE-2018-20535 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2018-20535?

CVE-2018-20535 has a CVSS v3 base score of 5.5 (MEDIUM).

What is the EPSS score for CVE-2018-20535?

CVE-2018-20535 has an EPSS score of 0.80% (52th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2018-20535?

Upgrade nasm on debian 11 to 2.15.04-1 or later.

CVE & CISA-KEV Catalog

CVE-2018-20535

MEDIUM

5.5

CVSS v3

NVD

Description

There is a use-after-free at asm/preproc.c (function pp_getline) in Netwide Assembler (NASM) 2.14rc16 that will cause a denial of service during a line-number increment attempt.

CWE-416Use After Free

How to fix

Remediation Available

nasmDebian

Fixed in:2.15.04-1CVE-2018-20535

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

0.80%probability of exploitation in 30 days

52ndpercentile

Moderate risk: more likely to be exploited than 52% of all known CVEs.

References

Exploit1

bugzilla.nasm.us

Related Vulnerabilities

Other CWE-416 (Use After Free) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2019-0708	Critical	9.8	100%	KEV + Ransom	-
CVE-2021-31166	Critical	9.8	100%	KEV	Fix
CVE-2015-5119	Critical	9.8	99%	KEV	-
CVE-2010-3962	High	8.1	97%	KEV	-
CVE-2015-0313	Critical	9.8	96%	KEV	Fix
CVE-2017-9798	High	7.5	95%	-	Fix

Embed a live status badge for CVE-2018-20535

Markdown

[![CVE-2018-20535](https://tridentstack.com/cve/badge/CVE-2018-20535.svg)](https://tridentstack.com/cve/CVE-2018-20535)

HTML

<a href="https://tridentstack.com/cve/CVE-2018-20535"><img src="https://tridentstack.com/cve/badge/CVE-2018-20535.svg" alt="CVE-2018-20535"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

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.