Vulnerability Details CVE-2021-41229
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 4.6%
CVSS Severity
CVSS v3 Score 4.3
CVSS v2 Score 3.3
References
- https://github.com/bluez/bluez/security/advisories/GHSA-3fqg-r8j5-f5xq
- https://lists.debian.org/debian-lts-announce/2021/11/msg00022.html
- https://lists.debian.org/debian-lts-announce/2022/10/msg00026.html
- https://security.netapp.com/advisory/ntap-20211203-0004/
- https://github.com/bluez/bluez/security/advisories/GHSA-3fqg-r8j5-f5xq
- https://lists.debian.org/debian-lts-announce/2021/11/msg00022.html
- https://lists.debian.org/debian-lts-announce/2022/10/msg00026.html
- https://security.netapp.com/advisory/ntap-20211203-0004/
Products affected by CVE-2021-41229
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cpe:2.3:a:bluez:bluez:5.58
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cpe:2.3:o:debian:debian_linux:10.0
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cpe:2.3:o:debian:debian_linux:9.0