CVE-2020-27153

HighCVSS 8.6/10Last modified Jun 17, 2026

Description

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.

Metrics

CVSS 3.1 8.6/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H

Weakness enumeration

CWE-415

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00034.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00036.htmlMailing List, Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1884817Issue Tracking, Third Party Advisory
https://github.com/bluez/bluez/commit/1cd644db8c23a2f530ddb93cebed7dacc5f5721aPatch, Third Party Advisory
https://github.com/bluez/bluez/commit/5a180f2ec9edfacafd95e5fed20d36fe8e077f07Patch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/10/msg00022.htmlMailing List, Third Party Advisory
https://security.gentoo.org/glsa/202011-01Third Party Advisory
https://www.debian.org/security/2021/dsa-4951Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00034.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00036.htmlMailing List, Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1884817Issue Tracking, Third Party Advisory
https://github.com/bluez/bluez/commit/1cd644db8c23a2f530ddb93cebed7dacc5f5721aPatch, Third Party Advisory
https://github.com/bluez/bluez/commit/5a180f2ec9edfacafd95e5fed20d36fe8e077f07Patch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/10/msg00022.htmlMailing List, Third Party Advisory
https://security.gentoo.org/glsa/202011-01Third Party Advisory
https://www.debian.org/security/2021/dsa-4951Third Party Advisory

Timeline

Published: Oct 15, 2020
Last modified: Jun 17, 2026
NVD status: Modified

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