Is CVE-2018-20506 in the CISA KEV catalog?

No. CVE-2018-20506 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2018-20506?

CVE-2018-20506 has a CVSS v3 base score of 8.1 (HIGH).

What is the EPSS score for CVE-2018-20506?

CVE-2018-20506 has an EPSS score of 7.53% (94th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2018-20506?

Upgrade sqlite3 on debian 11 to 3.25.3-1 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2018-20506

HIGHEPSS 94th pctl

8.1

CVSS v3

NVD

Description

SQLite before 3.25.3, when the FTS3 extension is enabled, encounters an integer overflow (and resultant buffer overflow) for FTS3 queries in a "merge" operation that occurs after crafted changes to FTS3 shadow tables, allowing remote attackers to execute arbitrary code by leveraging the ability to run arbitrary SQL statements (such as in certain WebSQL use cases). This is a different vulnerability than CVE-2018-20346.

CWE-190Integer Overflow

How to fix

Remediation Available

sqlite3Debian

Fixed in:3.25.3-1CVE-2018-20506

libsqlite3-0Ubuntu

Fixed in:3.8.2-1ubuntu2.2+esm1USN-4019-2

Fixed in:3.11.0-1ubuntu1.2USN-4019-1

Fixed in:3.22.0-1ubuntu0.1USN-4019-1

sqlite3Ubuntu

Fixed in:3.8.2-1ubuntu2.2+esm1USN-4019-2

Fixed in:3.11.0-1ubuntu1.2USN-4019-1

Fixed in:3.22.0-1ubuntu0.1USN-4019-1

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 ComplexityHigh

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

7.53%probability of exploitation in 30 days

94thpercentile

High risk: more likely to be exploited than 94% of all known CVEs.

References

Related Vulnerabilities

Other CWE-190 (Integer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2020-16040	Medium	6.5	100%	-	Fix
CVE-2019-11477	High	7.5	99%	-	Fix
CVE-2023-44443	High	7.8	94%	-	Fix
CVE-2014-0569	High	9.3	90%	-	-
CVE-2017-3599	High	7.5	90%	-	Fix
CVE-2023-21716	Critical	9.8	82%	-	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.