Ubuntu update for bluez

1) Input validation error

EUVDB-ID: #VU64523

Risk: Medium

CVSSv4.0: 5.2 [CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-39177

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

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.

Mitigation

Update the affected package bluez to the latest version.

Vulnerable software versions

Ubuntu: 18.04 - 20.04

bluez (Ubuntu package): before 5.48-0ubuntu3.9

libbluetooth3 (Ubuntu package): before 5.48-0ubuntu3.9

CPE2.3

• cpe:2.3:o:canonical:ubuntu:18.04:*:*:*:*:*:*:*
• cpe:2.3:o:canonical:ubuntu:20.04:*:*:*:*:*:*:*
• cpe:2.3:a:canonical:bluez_ubuntu_package:*:*:*:*:*:ubuntu:*:*
• cpe:2.3:a:canonical:libbluetooth3_ubuntu_package:*:*:*:*:*:ubuntu:*:*

External links

https://ubuntu.com/security/notices/USN-5481-1

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.