CVE-2018-20506: SQL Injection

Published Jan 22, 2019
·
Updated

Last updated 25 August 2025

Other sources

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.

— Microsoft

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.

— MITRE

SQLite. Multiple memory corruption issues were addressed with improved input validation.

Credit

Tencent Blade Team

Affected Software

23 affected componentsFixes available
Apple tvOS<12.1.2
12.1.2
Apple macOS Mojave<10.14.3
10.14.3
Apple High Sierra
Apple Sierra
Apple WatchOS<5.1.3
5.1.3
Apple iCloud for Windows<7.10
7.10
Apple iTunes for Windows<12.9.3
12.9.3
Apple iOS<12.1.3
12.1.3
SQLite SQLite<3.25.3
Apple iPhone OS<12.1.3
Apple iOS and macOS<10.14.3
Apple tvOS<12.1.2
Apple WatchOS<5.1.3
Apple iCloud<=7.10
Apple iTunes<=12.9.3
Microsoft Windows
openSUSE Leap=42.3
Microsoft azl3 ceph 16.2.10-3
Patch available
Microsoft azl3 ceph 18.2.1-1
Patch available
All of the following
Any of the following
Apple iCloud<=7.10
Apple iTunes<=12.9.3
Microsoft Windows
debian/sqlite3
3.40.1-2+deb12u23.46.1-7+deb13u23.53.4-2

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade tvOS to a version that resolves this vulnerability.

    Fixed in 12.1.2
  2. Upgrade

    Upgrade macOS Mojave to a version that resolves this vulnerability.

    Fixed in 10.14.3
  3. Upgrade

    Upgrade Apple iOS, iPadOS, and watchOS to a version that resolves this vulnerability.

    Fixed in 5.1.3
  4. Upgrade

    Upgrade Apple iCloud to a version that resolves this vulnerability.

    Fixed in 7.10
  5. Upgrade

    Upgrade iTunes to a version that resolves this vulnerability.

    Fixed in 12.9.3
  6. Upgrade

    Upgrade Apple iOS and iPadOS to a version that resolves this vulnerability.

    Fixed in 12.1.3
  7. Upgrade

    Upgrade debian/sqlite3 to a version that resolves this vulnerability.

    Fixed in 3.40.1-2+deb12u2Fixed in 3.46.1-7+deb13u2Fixed in 3.53.4-2
  8. Upgrade

    Upgrade SQLite to a version that resolves this vulnerability.

    Fixed in 3.25.3

Event History

Apr 3, 2019
CVE Published
via MITRE·05:50 PM
Data Sourced
via MITRE·05:50 PM
Description
Data Sourced
via NVD·06:29 PM
DescriptionSeverityWeaknessAffected Software
Jun 30, 2024
Data Sourced
via Microsoft·02:00 PM
DescriptionSeverityWeaknessAffected Software
Feb 19, 2026
Data Sourced
via Ubuntu·06:01 PM
RemedyDescriptionSeverityAffected Software
Data Sourced
via Launchpad·06:02 PM
Description
Oct 14, 2026
Data Sourced
via Debian·07:03 AM
DescriptionAffected Software

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

Frequently Asked Questions

1

What is CVE-2018-20506?

CVE-2018-20506 is a vulnerability in SQLite that allows remote attackers to execute arbitrary code.

2

What is the severity of CVE-2018-20506?

The severity of CVE-2018-20506 is high with a CVSS score of 8.1.

3

How does CVE-2018-20506 affect SQLite?

CVE-2018-20506 affects SQLite versions prior to 3.25.3.

4

How can I fix CVE-2018-20506?

To fix CVE-2018-20506, update SQLite to version 3.25.3 or later.

5

Where can I find more information about CVE-2018-20506?

You can find more information about CVE-2018-20506 at the following references: https://security.netapp.com/advisory/ntap-20190502-0004/, http://seclists.org/fulldisclosure/2019/Jan/62, http://seclists.org/fulldisclosure/2019/Jan/64

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Resources

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