CVE-2021-41229
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.
Does this matter?
Lower severity and a low EPSS score (1.18%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 6.5 MEDIUMCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 1.18% probability · 66th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-400, CWE-401
- Affected
- bluez/bluez · debian/debian linux
- Source
- security-advisories@github.com
References
- https://github.com/bluez/bluez/security/advisories/GHSA-3fqg-r8j5-f5xqExploit, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/11/msg00022.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/10/msg00026.htmlMailing List, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20211203-0004/Third Party Advisory
- https://github.com/bluez/bluez/security/advisories/GHSA-3fqg-r8j5-f5xqExploit, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/11/msg00022.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/10/msg00026.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2024/09/msg00022.html
- https://security.netapp.com/advisory/ntap-20211203-0004/Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.