CVE-2018-14682

HIGHEPSS 89th pctl

8.8

CVSS v3

Description

An issue was discovered in mspack/chmd.c in libmspack before 0.7alpha. There is an off-by-one error in the TOLOWER() macro for CHM decompression.

CWE-193

How to fix

Remediation Available

libmspackDebian

Fixed in:0.7-1CVE-2018-14682

clamavUbuntu

Fixed in:0.100.1+dfsg-1ubuntu0.14.04.3USN-3728-2

libmspackUbuntu

Fixed in:0.4-1ubuntu0.1~esm2USN-7788-1

Fixed in:0.5-1ubuntu0.16.04.2USN-3728-1

Fixed in:0.6-3ubuntu0.1USN-3728-1

libmspack-devUbuntu

Fixed in:0.4-1ubuntu0.1~esm2USN-7788-1

libmspack-docUbuntu

Fixed in:0.4-1ubuntu0.1~esm2USN-7788-1

libmspack0Ubuntu

Fixed in:0.4-1ubuntu0.1~esm2USN-7788-1

Fixed in:0.5-1ubuntu0.16.04.2USN-3728-1

Fixed in:0.6-3ubuntu0.1USN-3728-1

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

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

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

3.81%probability of exploitation in 30 days

89thpercentile

Elevated risk: more likely to be exploited than 89% of all known CVEs.

References

Patch2

Third-Party Advisory11

Related Vulnerabilities

Other CWE-193 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2021-3156	High	7.8	99%	KEV	Fix
CVE-2003-0466	Critical	9.8	78%	-	-
CVE-2023-44444	High	7.8	56%	-	Fix
CVE-2021-23017	High	7.7	53%	-	Fix
CVE-2023-28709	High	7.5	50%	-	Fix
CVE-2018-8828	Critical	9.8	31%	-	Fix

Common questions

How do I fix CVE-2018-14682?

Published advisories record a fix for 6 affected products. The "How to fix" section on this page lists the fixed version and source advisory for each one, so apply the entry matching what you actually run.

Is CVE-2018-14682 being actively exploited?

Not that we know of. CVE-2018-14682 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 3.8% is the estimated probability that it will be exploited in the next 30 days. That is higher than 89% of all scored CVEs.

How severe is CVE-2018-14682?

CVE-2018-14682 has a CVSS v3 base score of 8.8, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2018-14682 affect?

Published advisories record a fix for libmspack (Debian), clamav (Ubuntu), libmspack (Ubuntu), libmspack-dev (Ubuntu), and 2 more. Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

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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.