Resource Exhaustion Affecting bluez package, versions <5.55-3.1+deb11u2


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.08% (35th percentile)

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  • Snyk IDSNYK-DEBIAN11-BLUEZ-1920810
  • published13 Nov 2021
  • disclosed12 Nov 2021

Introduced: 12 Nov 2021

CVE-2021-41229  (opens in a new tab)
CWE-400  (opens in a new tab)

How to fix?

Upgrade Debian:11 bluez to version 5.55-3.1+deb11u2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream bluez package and not the bluez package as distributed by Debian. 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.

CVSS Scores

version 3.1