drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Mehrere Probleme in BlueZ
Name: |
Mehrere Probleme in BlueZ |
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ID: |
USN-4989-1 |
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Distribution: |
Ubuntu |
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Plattformen: |
Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, Ubuntu 20.10, Ubuntu 21.04 |
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Datum: |
Mi, 16. Juni 2021, 22:07 |
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Referenzen: |
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-26558
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3588
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27153 |
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Applikationen: |
BlueZ |
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Originalnachricht |
This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --===============6000490004466859844== Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="3Yjdwtx089inUPeZzEemNtw5mU98iMdbP"
This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --3Yjdwtx089inUPeZzEemNtw5mU98iMdbP Content-Type: multipart/mixed; boundary="ORIRAAGrrlrUodfgU6MwD1qFQII8UEDIT"; protected-headers="v1" From: Marc Deslauriers <marc.deslauriers@canonical.com> Reply-To: Ubuntu Security <security@ubuntu.com> To: "ubuntu-security-announce@lists.ubuntu.com" <ubuntu-security-announce@lists.ubuntu.com> Message-ID: <b0261db8-100c-5ab3-1133-fe9509cfdb37@canonical.com> Subject: [USN-4989-1] BlueZ vulnerabilities
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========================================================================== Ubuntu Security Notice USN-4989-1 June 16, 2021
bluez vulnerabilities ==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 21.04 - Ubuntu 20.10 - Ubuntu 20.04 LTS - Ubuntu 18.04 LTS
Summary:
Several security issues were fixed in BlueZ.
Software Description: - bluez: Bluetooth tools and daemons
Details:
It was discovered that BlueZ incorrectly checked certain permissions when pairing. A local attacker could possibly use this issue to impersonate devices. (CVE-2020-26558)
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. (CVE-2020-27153)
Ziming Zhang discovered that BlueZ incorrectly handled certain array indexes. A local attacker could use this issue to cause BlueZ to crash, resulting in a denial of service, or possibly obtain sensitive information. This issue only affected Ubuntu 20.04 LTS and Ubuntu 20.10. (CVE-2021-3588)
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 21.04: bluez 5.56-0ubuntu4.1 libbluetooth3 5.56-0ubuntu4.1
Ubuntu 20.10: bluez 5.55-0ubuntu1.2 libbluetooth3 5.55-0ubuntu1.2
Ubuntu 20.04 LTS: bluez 5.53-0ubuntu3.2 libbluetooth3 5.53-0ubuntu3.2
Ubuntu 18.04 LTS: bluez 5.48-0ubuntu3.5 libbluetooth3 5.48-0ubuntu3.5
In general, a standard system update will make all the necessary changes.
References: https://ubuntu.com/security/notices/USN-4989-1 CVE-2020-26558, CVE-2020-27153, CVE-2021-3588
Package Information: https://launchpad.net/ubuntu/+source/bluez/5.56-0ubuntu4.1 https://launchpad.net/ubuntu/+source/bluez/5.55-0ubuntu1.2 https://launchpad.net/ubuntu/+source/bluez/5.53-0ubuntu3.2 https://launchpad.net/ubuntu/+source/bluez/5.48-0ubuntu3.5
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