Multiple vulnerabilities in BlueZ
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 2 |
| CVE-ID | CVE-2019-8922 CVE-2019-8921 |
| CWE-ID | CWE-122 CWE-125 |
| Exploitation vector | Local network |
| 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 information about 2 vulnerabilities.
1) Heap-based buffer overflow
EUVDB-ID: #VU66694
Risk: Medium
CVSSv3.1: 7.7 [CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2019-8922
CWE-ID:
CWE-122 - Heap-based Buffer Overflow
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error within bluetoothd. A remote attacker on the local network can send specially crafted data to the system, trigger a heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
MitigationInstall updates from vendor's website.
Vulnerable software versionsBlueZ: 5.0 - 5.48
External linkshttp://ssd-disclosure.com/ssd-advisory-linux-bluez-information-leak-and-heap-overflow/
http://security.netapp.com/advisory/ntap-20211203-0002/
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
2) Out-of-bounds read
EUVDB-ID: #VU68830
Risk: Low
CVSSv3.1: 3.8 [CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2019-8921
CWE-ID:
CWE-125 - Out-of-bounds read
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to gain access to sensitive information.
The vulnerability exists due to missing verification checks when handling consecutive SVC_ATTR_REQ requests within the service_attr_req() function in sdpd-request.c in bluetoothd . A remote attacker on the local network can send specially crafted CSTATE data to the system and trick the server into returning more bytes than the buffer actually holds, resulting in leaking arbitrary heap data.
MitigationInstall updates from vendor's website.
Vulnerable software versionsBlueZ: 4.0 - 5.48
External linkshttp://ssd-disclosure.com/ssd-advisory-linux-bluez-information-leak-and-heap-overflow/
http://security.netapp.com/advisory/ntap-20211203-0002/
http://lists.debian.org/debian-lts-announce/2022/10/msg00026.html
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
