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.
https://support.apple.com/kb/HT209451
https://support.apple.com/kb/HT209450
https://support.apple.com/kb/HT209448
https://support.apple.com/kb/HT209447
https://support.apple.com/kb/HT209446
https://support.apple.com/kb/HT209443
https://sqlite.org/src/info/940f2adc8541a838
https://seclists.org/bugtraq/2019/Jan/39
https://seclists.org/bugtraq/2019/Jan/33
https://seclists.org/bugtraq/2019/Jan/32
https://seclists.org/bugtraq/2019/Jan/31
https://seclists.org/bugtraq/2019/Jan/29
https://seclists.org/bugtraq/2019/Jan/28
http://www.securityfocus.com/bid/106698
http://seclists.org/fulldisclosure/2019/Jan/69
http://seclists.org/fulldisclosure/2019/Jan/68
http://seclists.org/fulldisclosure/2019/Jan/67
http://seclists.org/fulldisclosure/2019/Jan/66
http://seclists.org/fulldisclosure/2019/Jan/64
http://seclists.org/fulldisclosure/2019/Jan/62
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00070.html
https://security.netapp.com/advisory/ntap-20190502-0004/
https://usn.ubuntu.com/4019-1/
https://usn.ubuntu.com/4019-2/
https://www.oracle.com/security-alerts/cpuapr2020.html
https://lists.debian.org/debian-lts-announce/2020/08/msg00037.html
https://kc.mcafee.com/corporate/index?page=content&id=SB10365
Source: MITRE
Published: 2019-04-03
Updated: 2021-07-31
Type: CWE-190
Base Score: 6.8
Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P
Impact Score: 6.4
Exploitability Score: 8.6
Severity: MEDIUM
Base Score: 8.1
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Impact Score: 5.9
Exploitability Score: 2.2
Severity: HIGH