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CVE-2020-27153

Good to know:

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Date: October 14, 2020

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.

Language: C

Severity Score

Related Resources (14)

https://github.com/bluez/bluez/commit/5a180f2ec9edfacafd95e5fed20d36fe8e077f07
https://www.debian.org/security/2021/dsa-4951
http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00034.html
https://security-tracker.debian.org/tracker/CVE-2020-27153
https://bugzilla.redhat.com/show_bug.cgi?id=1884817
https://security.gentoo.org/glsa/202011-01
http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00036.html
https://nvd.nist.gov/vuln/detail/CVE-2020-27153
https://security.alpinelinux.org/vuln/CVE-2020-27153
https://lists.debian.org/debian-lts-announce/2020/10/msg00022.html
https://people.canonical.com/~ubuntu-security/cve/CVE-2020-27153
https://github.com/bluez/bluez/commit/1cd644db8c23a2f530ddb93cebed7dacc5f5721a
https://access.redhat.com/security/cve/CVE-2020-27153
https://www.mend.io/vulnerability-database/CVE-2020-27153

Severity Score

Weakness Type (CWE)

Double Free

CWE-415

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): LOW
Integrity (I): LOW
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): PARTIAL
Integrity (I): PARTIAL
Availability (A): PARTIAL
Additional information:

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