CVE-2021-41229
Medium
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.
SeverityMedium
CVSS4.3
Exploit probability68. percentile1.2%
Product
Bluez
PublishedNov 12, 2021
First seenNov 12, 2021
Weakness typeCWE-400Uncontrolled resource consumption
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| bluez bluez | 5.58 | — |
| debian debian_linux | 9.0, 10.0 | — |
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