- Vulnerabilities 85,576
Debian: Security Advisory for bluez (DSA-4647-1)
Published: 2020-03-29 03:00:16
CVE Author: NIST National Vulnerability Database
CVSS Base Vector:
AV:A/AC:L/Au:N/C:P/I:P/A:P
Summary:
The remote host is missing an update for the 'bluez'
Linux Distribution Package(s) announced via the DSA-4647-1 advisory.
Detection Method:
Checks if a vulnerable Linux Distribution Package version is present on the target host.
Technical Details:
It was reported that the BlueZ's HID and HOGP profile implementations
don't specifically require bonding between the device and the host.
Malicious devices can take advantage of this flaw to connect to a target
host and impersonate an existing HID device without security or to cause
an SDP or GATT service discovery to take place which would allow HID
reports to be injected to the input subsystem from a non-bonded source.
Affected Versions:
'bluez' Linux Distribution Package(s) on Debian Linux.
Recommendations:
For the HID profile an new configuration option (ClassicBondedOnly) is
introduced to make sure that input connections only come from bonded
device connections. The options defaults to false
to maximize device
compatibility.
For the oldstable distribution (stretch), this problem has been fixed
in version 5.43-2+deb9u2.
For the stable distribution (buster), this problem has been fixed in
version 5.50-1.2~deb10u1.
We recommend that you upgrade your bluez Linux Distribution Packages.
Solution Type:
Vendor Patch
Detection Type:
Linux Distribution Package
https://nvd.nist.gov/vuln/detail/CVE-2020-0556
https://www.debian.org/security/2020/dsa-4647.html
https://security-tracker.debian.org/tracker/DSA-4647-1
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