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AUSCERT External Security Bulletin Redistribution
ESB-2021.4167
USN-5183-1: BlueZ vulnerability
9 December 2021
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AusCERT Security Bulletin Summary
---------------------------------
Product: BlueZ
Publisher: Ubuntu
Operating System: Ubuntu
Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Denial of Service -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2019-8922
Reference: ESB-2021.4011
Original Bulletin:
https://ubuntu.com/security/notices/USN-5183-1
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USN-5183-1: BlueZ vulnerability
08 December 2021
BlueZ could be made to crash or run programs if it received specially
crafted traffic.
Releases
o Ubuntu 18.04 LTS
Packages
o bluez - Bluetooth tools and daemons
Details
Julian Rauchberger discovered that BlueZ incorrectly handled memory when
processing SDP attribute requests. A remote attacker could use this issue
to cause BlueZ to crash, leading to a denial of service, or possibly
execute arbitrary code.
Update instructions
The problem can be corrected by updating your system to the following package
versions:
Ubuntu 18.04
o libbluetooth3 - 5.48-0ubuntu3.7
o bluez - 5.48-0ubuntu3.7
In general, a standard system update will make all the necessary changes.
References
o CVE-2019-8922
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