CVE-2021-41229

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.

Weakness classification

• CWE-400: Uncontrolled Resource Consumption
• CWE-401: Missing Release of Memory after Effective Lifetime

Primary references

• security-advisories@github.com — Exploit, Third Party Advisory
• security-advisories@github.com — Mailing List, Third Party Advisory
• security-advisories@github.com — Mailing List, Third Party Advisory
• security-advisories@github.com — Third Party Advisory
• af854a3a-2127-422b-91ae-364da2661108 — Exploit, Third Party Advisory
• af854a3a-2127-422b-91ae-364da2661108 — Mailing List, Third Party Advisory
• af854a3a-2127-422b-91ae-364da2661108 — Mailing List, Third Party Advisory
• af854a3a-2127-422b-91ae-364da2661108
• af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory