Is CVE-2018-16648 in the CISA KEV catalog?

No. CVE-2018-16648 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2018-16648?

CVE-2018-16648 has a CVSS v3 base score of 5.5 (MEDIUM).

What is the EPSS score for CVE-2018-16648?

CVE-2018-16648 has an EPSS score of 1.47% (71th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2018-16648?

Upgrade mupdf on debian 11 to 1.14.0+ds1-4 or later. Fixes are available for 4 affected products.

CVE & CISA-KEV Catalog

CVE-2018-16648

MEDIUMEPSS 71th pctl

5.5

CVSS v3

NVD

Description

In Artifex MuPDF 1.13.0, the fz_append_byte function in fitz/buffer.c allows remote attackers to cause a denial of service (segmentation fault) via a crafted pdf file. This is caused by a pdf/pdf-device.c pdf_dev_alpha array-index underflow.

CWE-129

How to fix

Remediation Available

mupdfDebian

Fixed in:1.14.0+ds1-4CVE-2018-16648

libmupdf-devUbuntu

Fixed in:1.7a-1ubuntu0.1~esm1USN-7825-1

Fixed in:1.12.0+ds1-1ubuntu0.1~esm1USN-7825-1

Fixed in:1.16.1+ds1-1ubuntu1+esm1USN-7825-1

mupdfUbuntu

Fixed in:1.7a-1ubuntu0.1~esm1USN-7825-1

Fixed in:1.12.0+ds1-1ubuntu0.1~esm1USN-7825-1

Fixed in:1.16.1+ds1-1ubuntu1+esm1USN-7825-1

mupdf-toolsUbuntu

Fixed in:1.7a-1ubuntu0.1~esm1USN-7825-1

Fixed in:1.12.0+ds1-1ubuntu0.1~esm1USN-7825-1

Fixed in:1.16.1+ds1-1ubuntu1+esm1USN-7825-1

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

1.47%probability of exploitation in 30 days

71stpercentile

Elevated risk: more likely to be exploited than 71% of all known CVEs.

References

Exploit1

bugs.ghostscript.com

Other references2

Related Vulnerabilities

Other CWE-129 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2021-35592	Medium	6.3	51%	-	Fix
CVE-2021-35598	Medium	6.3	50%	-	Fix
CVE-2021-35594	Medium	6.3	50%	-	Fix
CVE-2022-35737	High	7.5	19%	-	Fix
CVE-2014-6317	High	7.1	18%	-	-
CVE-2023-40477	High	7.8	13%	-	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.