SB2019120212 - Ubuntu update for SQLite

Description

This security bulletin contains information about 6 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) Input validation error (CVE-ID: CVE-2019-19242)

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

The vulnerability exists due to insufficient validation within the sqlite3ExprCodeTarget(0 function in expr.c when processing the TK_COLUMN case. A remote attacker can pass specially crafted data to the application and perform a denial of service attack.

4) NULL pointer dereference (CVE-ID: CVE-2018-8740)

The vulnerability allows a remote authenticated attacker to cause DoS condition on the target system.

The weakness exists in the build.c and prepare.c source codes files due to NULL pointer dereference. A remote attacker can cause the service to crash.

5) Input validation error (CVE-ID: CVE-2019-19244)

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

The vulnerability exists due to insufficient validation of user-supplied input when a sub-select uses both DISTINCT and window functions, and also has certain ORDER BY usage in select.c . A remote attacker can crash the affected application using a specially crafted SQL query.

6) Integer overflow (CVE-ID: CVE-2019-5827)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to integer overflow in SQLite component via WebSQL in Google Chrome. A remote attacker can create a specially crafted web page, trick the victim into opening it, trigger integer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Remediation

Install update from vendor's website.

References

• https://usn.ubuntu.com/4205-1/