SB2020080601 - Multiple vulnerabilities in SQLite

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Main Vulnerability Database SB2020080601

SB2020080601 - Multiple vulnerabilities in SQLite

Published: August 6, 2020 Updated: September 15, 2022

Security Bulletin ID SB2020080601
Severity
High
Patch available
YES
Number of vulnerabilities 5
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

High 20% Medium 40% Low 40%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 5 secuirty vulnerabilities.


1) Use-after-free (CVE-ID: CVE-2020-13630)

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error within the fts3EvalNextRow() function in ext/fts3/fts3.c. A remote attacker can pass specially crafted data to application, trigger a use-after-free error and execute arbitrary code on the target system.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.


2) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2020-13631)

The vulnerability allows a local user to bypass certain security restrictions.

The vulnerability exists due an error in alter.c and build.c files in SQLite that allows a local user to rename a virtual table into a shadow table. A local user with permissions to create virtual tables can renamed them and gain unauthorized access to the fronted application.


3) NULL pointer dereference (CVE-ID: CVE-2020-13632)

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error in ext/fts3/fts3_snippet.c in SQLite. A local user can trigger denial of service conditions via a crafted matchinfo() query.


4) NULL pointer dereference (CVE-ID: CVE-2020-35525)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error in the INTERSEC query processing. A remote attacker can pass specially crafted data to the application and perform a denial of service (DoS) attack.


5) Out-of-bounds read (CVE-ID: CVE-2020-35527)

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition when handling ALTER TABLE for views that have a nested FROM clause. A remote attacker can pass specially crafted input to the application, trigger an out-of-bounds read error and read contents of memory on the system.


Remediation

Install update from vendor's website.

References