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Resource Exhaustion Affecting bluez package, versions *

low

Snyk CVSS

    Attack Complexity Low
    Availability High
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NVD
6.5 medium
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Red Hat
4.3 medium

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  • Snyk ID SNYK-DEBIAN11-BLUEZ-1920810
  • published 13 Nov 2021
  • disclosed 12 Nov 2021
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Introduced: 12 Nov 2021

CVE-2021-41229 Open this link in a new tab
CWE-400 Open this link in a new tab

How to fix?

There is no fixed version for Debian:11 bluez.

NVD Description

Note: Versions mentioned in the description apply only to the upstream bluez package and not the bluez package as distributed by Debian:11. See How to fix? for Debian:11 relevant fixed versions and status.

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.