CVE-2020-0556
First published: Thu Mar 12 2020(Updated: )
Improper access control in subsystem for BlueZ before version 5.54 may allow an unauthenticated user to potentially enable escalation of privilege and denial of service via adjacent access
Credit: secure@intel.com secure@intel.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/bluez | <=5.50-1<=5.52-1 | 5.54-1 5.43-2+deb9u2 5.50-1.2~deb10u1 5.50-1.1 |
| BlueZ BlueZ | <5.54 | |
| Canonical Ubuntu Linux | =16.04 | |
| Canonical Ubuntu Linux | =18.04 | |
| Canonical Ubuntu Linux | =19.10 | |
| Debian Debian Linux | =8.0 | |
| Debian Debian Linux | =9.0 | |
| Debian Debian Linux | =10.0 | |
| openSUSE Leap | =15.1 | |
| openSUSE Leap | =15.2 | |
| ubuntu/bluez | <5.48-0ubuntu3.4 | 5.48-0ubuntu3.4 |
| ubuntu/bluez | <5.50-0ubuntu5.1 | 5.50-0ubuntu5.1 |
| ubuntu/bluez | <5.54 | 5.54 |
| ubuntu/bluez | <5.37-0ubuntu5.3 | 5.37-0ubuntu5.3 |
| debian/bluez | 5.55-3.1+deb11u1 5.66-1+deb12u2 5.66-1+deb12u1 5.73-1.1 |
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Reference Links
- https://security-tracker.debian.org/tracker/CVE-2020-0556
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-0556
- https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00352.html
- http://www.aurel32.net
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=953770
- http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00008.html
- http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00055.html
- https://lists.debian.org/debian-lts-announce/2020/06/msg00008.html
- https://security.gentoo.org/glsa/202003-49
- https://usn.ubuntu.com/4311-1/
- https://www.debian.org/security/2020/dsa-4647
- https://launchpad.net/bugs/cve/CVE-2020-0556
- https://lore.kernel.org/linux-bluetooth/20200310023516.209146-1-alainm@chromium.org/
- https://git.kernel.org/pub/scm/bluetooth/bluez.git/commit/?id=8cdbd3b09f29da29374e2f83369df24228da0ad1
- https://git.kernel.org/pub/scm/bluetooth/bluez.git/commit/?id=3cccdbab2324086588df4ccf5f892fb3ce1f1787
- https://git.kernel.org/pub/scm/bluetooth/bluez.git/commit/?id=35d8d895cd0b724e58129374beb0bb4a2edf9519
- https://git.kernel.org/pub/scm/bluetooth/bluez.git/commit/?id=f2778f5877d20696d68a452b26e4accb91bfb19e
- https://www.openwall.com/lists/oss-security/2020/03/12/4
- https://ubuntu.com/security/notices/USN-4311-1
- https://www.cve.org/CVERecord?id=CVE-2020-0556
- https://nvd.nist.gov/vuln/detail/CVE-2020-0556
- https://ubuntu.com/security/CVE-2020-0556
Frequently Asked Questions
What is CVE-2020-0556?
CVE-2020-0556 is a vulnerability in BlueZ before version 5.54 that allows an unauthenticated user to potentially enable privilege escalation and denial of service via adjacent access.
How severe is CVE-2020-0556?
CVE-2020-0556 has a severity score of 7.1 (high).
Which software versions are affected by CVE-2020-0556?
BlueZ versions before 5.54 are affected by CVE-2020-0556.
How can I fix CVE-2020-0556?
To fix CVE-2020-0556, update your BlueZ software to version 5.54 or later.
Are there any additional resources about CVE-2020-0556?
Yes, you can refer to the following resources for more information: [Intel Security Advisory](https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00352.html), [Gentoo Security Advisory](https://security.gentoo.org/glsa/202003-49), [Debian Security Advisory](https://www.debian.org/security/2020/dsa-4647).
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