|Description||BlueZ is a Bluetooth protocol stack for Linux. In affected versions a vulnerability exists in sdp_cstate_alloc_buf which allocates memory which will always be hung in the singly linked list of cstates and will not be freed. This will cause a memory leak over time. The data can be a very large object, which can be caused by an attacker continuously sending sdp packets and this may cause the service of the target device to crash.|
|Source||CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)|
Vulnerable and fixed packages
The table below lists information on source packages.
|buster, buster (security)||5.50-1.2~deb10u2||vulnerable|
The information below is based on the following data on fixed versions.
[bullseye] - bluez <no-dsa> (Minor issue)
[buster] - bluez <no-dsa> (Minor issue)
Introduced by: https://git.kernel.org/pub/scm/bluetooth/bluez.git/commit/?id=d939483328489fb835bb425d36f7c7c73d52c388 (4.0)
Fixed by: https://git.kernel.org/pub/scm/bluetooth/bluez.git/commit/?id=e79417ed7185b150a056d4eb3a1ab528b91d2fc0