SB2020110913 - Red Hat Enterprise Linux 8 update for sqlite
Published: November 9, 2020 Updated: June 20, 2021
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 8 secuirty vulnerabilities.
1) Use-after-free (CVE-ID: CVE-2019-5018)
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error within the window function functionality. A remote attacker can send a specially crafted SQL command to the application, trigger user-after-free error and execute arbitrary code on the system.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.
2) Division by zero (CVE-ID: CVE-2019-16168)
The vulnerability allows a remote attacker to perform a denial of service attack.
The vulnerability exists due to a division by zero error within the whereLoopAddBtreeIndex in sqlite3.c due to improper input validation in the sqlite_stat1 sz field. A remote attacker can pass specially crafted data to the application, trigger division by zero error and crash the vulnerable application.
3) Memory leak (CVE-ID: CVE-2019-20218)
The vulnerability allows a remote attacker to gain access to sensitive information.
The vulnerability exists due memory leak within the selectExpander() function in select.c in SQLite, caused by incorrect exception handling, related to stack unwinding. A remote attacker can trigger with ability to modify the WITH SQL query can gain access to potentially sensitive information.
4) Out-of-bounds read (CVE-ID: CVE-2020-6405)
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to a boundary condition in SQLite. A remote attacker can pass specially crafted input to the application, trigger out-of-bounds read error and read contents of memory on the system.
5) NULL pointer dereference (CVE-ID: CVE-2020-9327)
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 SQLite 3.31.1, isAuxiliaryVtabOperator allows attackers to trigger a NULL pointer dereference and segmentation fault because of generated column optimizations. A remote attacker can perform a denial of service (DoS) attack.
6) 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.
7) 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.
8) 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.
Remediation
Install update from vendor's website.