CVE-2018-20506 Information

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.

CVSS Vector

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

Reference

http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00070.html http://seclists.org/fulldisclosure/2019/Jan/62 http://seclists.org/fulldisclosure/2019/Jan/64 http://seclists.org/fulldisclosure/2019/Jan/66 http://seclists.org/fulldisclosure/2019/Jan/67 http://seclists.org/fulldisclosure/2019/Jan/68 http://seclists.org/fulldisclosure/2019/Jan/69 http://www.securityfocus.com/bid/106698 https://lists.debian.org/debian-lts-announce/2020/08/msg00037.html https://seclists.org/bugtraq/2019/Jan/28 https://seclists.org/bugtraq/2019/Jan/29 https://seclists.org/bugtraq/2019/Jan/31 https://seclists.org/bugtraq/2019/Jan/32 https://seclists.org/bugtraq/2019/Jan/33 https://seclists.org/bugtraq/2019/Jan/39 https://security.netapp.com/advisory/ntap-20190502-0004/ https://sqlite.org/src/info/940f2adc8541a838 https://support.apple.com/kb/HT209443 https://support.apple.com/kb/HT209446 https://support.apple.com/kb/HT209447 https://support.apple.com/kb/HT209448 https://support.apple.com/kb/HT209450 https://support.apple.com/kb/HT209451 https://usn.ubuntu.com/4019-1/ https://usn.ubuntu.com/4019-2/ https://www.oracle.com/security-alerts/cpuapr2020.html

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

8.1