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CVE-2020-27153

Status Candidate

Overview

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.

Related Files

Debian Security Advisory 4951-1
Posted Aug 28, 2021
Authored by Debian | Site debian.org

Debian Linux Security Advisory 4951-1 - Several vulnerabilities were discovered in Bluez, the Linux Bluetooth protocol stack.

tags | advisory, vulnerability, protocol
systems | linux, debian
advisories | CVE-2020-26558, CVE-2020-27153, CVE-2021-0129
SHA-256 | 431d311d6156400aa4dd4fd7ef9b5e86f90421e808c0e7e5aa7f6a4c7ef192fe
Ubuntu Security Notice USN-4989-2
Posted Jun 17, 2021
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4989-2 - USN-4989-1 fixed several vulnerabilities in BlueZ. This update provides the corresponding update for Ubuntu 16.04 ESM. It was discovered that BlueZ incorrectly checked certain permissions when pairing. A local attacker could possibly use this issue to impersonate devices. Various other issues were also addressed.

tags | advisory, local, vulnerability
systems | linux, ubuntu
advisories | CVE-2020-26558, CVE-2020-27153
SHA-256 | 8720c245ff9d32e615ac12072fd408a3b7ff8626c06e4a6d72353f5814177f3a
Ubuntu Security Notice USN-4989-1
Posted Jun 17, 2021
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4989-1 - It was discovered that BlueZ incorrectly checked certain permissions when pairing. A local attacker could possibly use this issue to impersonate devices. Jay LV discovered that BlueZ incorrectly handled redundant disconnect MGMT events. A local attacker could use this issue to cause BlueZ to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, local
systems | linux, ubuntu
advisories | CVE-2020-26558, CVE-2020-27153, CVE-2021-3588
SHA-256 | 9ce6d46d00d0a483d4190324ad1b23e72ff227a846328a5bacca58006f043db1
Red Hat Security Advisory 2021-1598-01
Posted May 19, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-1598-01 - The bluez packages contain the following utilities for use in Bluetooth applications: hcitool, hciattach, hciconfig, bluetoothd, l2ping, start scripts, and pcmcia configuration files. Issues addressed include denial of service and double free vulnerabilities.

tags | advisory, denial of service, vulnerability
systems | linux, redhat
advisories | CVE-2020-27153
SHA-256 | 4f846ab0c021cac6dee3b09dd5f833b89e06b7233a59ea7d9ba015eaf420df8c
Gentoo Linux Security Advisory 202011-01
Posted Nov 3, 2020
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 202011-1 - A vulnerability in BlueZ might allow remote attackers to execute arbitrary code. Versions less than 5.55 are affected.

tags | advisory, remote, arbitrary
systems | linux, gentoo
advisories | CVE-2020-27153
SHA-256 | 456feecce536f47f217dd110ba0e9be0c758bee7bf46966c7bf2f8cc0df96c6d
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