Is CVE-2018-20547 in the CISA KEV catalog?

No. CVE-2018-20547 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2018-20547?

CVE-2018-20547 has a CVSS v3 base score of 8.1 (HIGH).

What is the EPSS score for CVE-2018-20547?

CVE-2018-20547 has an EPSS score of 1.80% (76th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2018-20547?

Upgrade libcaca on debian 11 to 0.99.beta19-2.1 or later. Fixes are available for 4 affected products.

CVE & CISA-KEV Catalog

CVE-2018-20547

HIGHEPSS 76th pctl

8.1

CVSS v3

NVD

Description

There is an illegal READ memory access at caca/dither.c (function get_rgba_default) in libcaca 0.99.beta19 for 24bpp data.

CWE-119Buffer Overflow

How to fix

Remediation Available

libcacaDebian

Fixed in:0.99.beta19-2.1CVE-2018-20547

caca-utilsUbuntu

Fixed in:0.99.beta18-1ubuntu5.1USN-3860-1

Fixed in:0.99.beta19-2ubuntu0.16.04.1USN-3860-1

Fixed in:0.99.beta19-2ubuntu0.18.04.1USN-3860-1

libcacaUbuntu

Fixed in:0.99.beta18-1ubuntu5.1USN-3860-1

Fixed in:0.99.beta19-2ubuntu0.16.04.1USN-3860-1

Fixed in:0.99.beta19-2ubuntu0.18.04.1USN-3860-1

libcaca0Ubuntu

Fixed in:0.99.beta18-1ubuntu5.1USN-3860-1

Fixed in:0.99.beta19-2ubuntu0.16.04.1USN-3860-1

Fixed in:0.99.beta19-2ubuntu0.18.04.1USN-3860-1

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 RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H

Exploit Intelligence

1.80%probability of exploitation in 30 days

76thpercentile

Elevated risk: more likely to be exploited than 76% of all known CVEs.

References

Patch1

bugzilla.redhat.com

Third-Party Advisory4

Other references3

Related Vulnerabilities

Other CWE-119 (Buffer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-4966	Critical	9.4	100%	KEV + Ransom	Fix
CVE-2017-11882	High	7.8	100%	KEV + Ransom	-
CVE-2020-0796	Critical	10.0	100%	KEV + Ransom	-
CVE-2008-4250	Critical	9.8	99%	KEV	-
CVE-2017-15944	Critical	9.8	98%	KEV	Fix
CVE-2015-0014	High	10.0	97%	-	-

Embed a live status badge for CVE-2018-20547

Markdown

[![CVE-2018-20547](https://tridentstack.com/cve/badge/CVE-2018-20547.svg)](https://tridentstack.com/cve/CVE-2018-20547)

HTML

<a href="https://tridentstack.com/cve/CVE-2018-20547"><img src="https://tridentstack.com/cve/badge/CVE-2018-20547.svg" alt="CVE-2018-20547"></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.