SB2022062042 - Multiple vulnerabilities in BlueZ

Description

This security bulletin contains information about 2 secuirty vulnerabilities.

1) Input validation error (CVE-ID: CVE-2022-39177)

The vulnerability allows a remote attacker to execute arbitrary code.

The vulnerability exists due to insufficient validation of user-supplied input when handling the A2DP profile in profiles/audio/avdtp.c. A remote attacker can pass specially crafted data to the system and execute arbitrary code.

2) Information exposure through externally-generated error message (CVE-ID: CVE-2022-39176)

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

The vulnerability exists due to excessive data output by the application while handling error conditions within profiles/audio/avrcp.c. A remote attacker on the local network can obtain sensitive information on the system.

Remediation

Install update from vendor's website.

References

• https://bugs.launchpad.net/ubuntu/+source/bluez/+bug/1977968
• https://ubuntu.com/security/notices/USN-5481-1