Denial of service in BlueZ
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2021-41229 |
| CWE-ID | CWE-401 |
| Exploitation vector | Local |
| Public exploit | N/A |
| Vulnerable software Subscribe |
BlueZ Universal components / Libraries / Libraries used by multiple products |
| Vendor | BlueZ Project |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
1) Memory leak
EUVDB-ID: #VU79524
Risk: Medium
CVSSv3.1: 4 [CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-41229
CWE-ID:
CWE-401 - Missing release of memory after effective lifetime
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform DoS attack on the target system.
The vulnerability exists due memory leak in sdp_cstate_alloc_buf() function. A remote attacker can send specially crafted packets to the device and perform denial of service attack.
MitigationInstall updates from vendor's website.
Vulnerable software versionsBlueZ: 5.58
External linkshttp://github.com/bluez/bluez/security/advisories/GHSA-3fqg-r8j5-f5xq
http://lists.debian.org/debian-lts-announce/2021/11/msg00022.html
http://security.netapp.com/advisory/ntap-20211203-0004/
http://lists.debian.org/debian-lts-announce/2022/10/msg00026.html
Q & A
Can this vulnerability be exploited remotely?
No. The attacker should have physical access to the system in order to successfully exploit this vulnerability.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
