Risk | Medium |
Patch available | YES |
Number of vulnerabilities | 1 |
CVE-ID | CVE-2020-27153 |
CWE-ID | CWE-415 |
Exploitation vector | 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 one medium risk vulnerability.
EUVDB-ID: #VU48203
Risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-27153
CWE-ID:
CWE-415 - Double Free
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error in the gatttool disconnect_cb() routine from shared/att.c. A remote attacker can cause a denial of service or code execution, during service discovery, due to a redundant disconnect MGMT event.
MitigationBlueZ: 5.0 - 5.54
External linkshttp://bugzilla.redhat.com/show_bug.cgi?id=1884817
http://github.com/bluez/bluez/commit/1cd644db8c23a2f530ddb93cebed7dacc5f5721a
http://github.com/bluez/bluez/commit/5a180f2ec9edfacafd95e5fed20d36fe8e077f07
http://lists.debian.org/debian-lts-announce/2020/10/msg00022.html
http://security.gentoo.org/glsa/202011-01
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.