CVE-2020-27153

In BlueZ before 5.55, a double free was found in the gatttool disconnect_cb() routine from shared/att.c. A remote attacker could potentially cause a denial of service or code execution, during service discovery, due to a redundant disconnect MGMT event.

CVSS v3.0 8.6 HIGH
CVSS v2.0 7.5 HIGH

8.6^/10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 4.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact HIGH

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

V2 Legend

Vector : AV:N/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://bugzilla.redhat.com/show_bug.cgi?id=1884817	Issue Tracking Third Party Advisory
https://github.com/bluez/bluez/commit/5a180f2ec9edfacafd95e5fed20d36fe8e077f07	Patch Third Party Advisory
https://github.com/bluez/bluez/commit/1cd644db8c23a2f530ddb93cebed7dacc5f5721a	Patch Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/10/msg00022.html	Mailing List Third Party Advisory
https://security.gentoo.org/glsa/202011-01	Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00034.html	Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00036.html	Mailing List Third Party Advisory
https://www.debian.org/security/2021/dsa-4951	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:bluez:bluez:*:*:*:*:*:*:*:*

Configuration 2 (hide)

OR	cpe:2.3:o:debian:debian_linux:9.0:::::::*
	cpe:2.3:o:debian:debian_linux:10.0:::::::*

Configuration 3 (hide)

OR	cpe:2.3:o:opensuse:leap:15.1:::::::*
	cpe:2.3:o:opensuse:leap:15.2:::::::*

Information

Published : 2020-10-14 20:15

Updated : 2022-04-05 08:59

NVD link : CVE-2020-27153

Mitre link : CVE-2020-27153

JSON object : View

CWE

CWE-415

Double Free

Products Affected

debian

debian_linux

bluez

bluez

opensuse

leap

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8.6 /10