Ubuntu update for bluez



Published: 2021-12-08
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2019-8922
CWE-ID CWE-122
Exploitation vector Local network
Public exploit N/A
Vulnerable software
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Ubuntu
Operating systems & Components / Operating system

libbluetooth3 (Ubuntu package)
Operating systems & Components / Operating system package or component

bluez (Ubuntu package)
Operating systems & Components / Operating system package or component

Vendor Canonical Ltd.

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Heap-based buffer overflow

EUVDB-ID: #VU66694

Risk: Medium

CVSSv3.1: 7.7 [CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-8922

CWE-ID: CWE-122 - Heap-based Buffer Overflow

Exploit availability: No

Description

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

The vulnerability exists due to a boundary error within bluetoothd. A remote attacker on the local network can send specially crafted data to the system, trigger a heap-based buffer overflow and execute arbitrary code on the target system.

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

Mitigation

Update the affected package bluez to the latest version.

Vulnerable software versions

Ubuntu: 18.04

libbluetooth3 (Ubuntu package): before 5.48-0ubuntu3.7

bluez (Ubuntu package): before 5.48-0ubuntu3.7

External links

http://ubuntu.com/security/notices/USN-5183-1


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.



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