Detections
Analytics
Amazon Linux 2 : linuxptp (ALAS-2021-1705)
high Nessus Plugin ID 153425
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Synopsis
The remote Amazon Linux 2 host is missing a security update.Description
The version of linuxptp installed on the remote host is prior to 2.0-2. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2021-1705 advisory.- A flaw was found in the ptp4l program of the linuxptp package. When ptp4l is operating on a little-endian architecture as a PTP transparent clock, a remote attacker could send a crafted one-step sync message to cause an information leak or crash. The highest threat from this vulnerability is to data confidentiality and system availability. This flaw affects linuxptp versions before 3.1.1 and before 2.0.1.
(CVE-2021-3571)
Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.
Solution
Run 'yum update linuxptp' to update your system.See Also
Plugin Details
Severity: High
ID: 153425
File Name: al2_ALAS-2021-1705.nasl
Version: 1.2
Type: local
Agent: unix
Published: 9/16/2021
Updated: 9/16/2021
Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 4.2
CVSS v2
Risk Factor: Medium
Base Score: 5.5
Temporal Score: 4.1
Vector: CVSS2#AV:N/AC:L/Au:S/C:P/I:N/A:P
CVSS Score Source: CVE-2021-3571
CVSS v3
Risk Factor: High
Base Score: 7.1
Temporal Score: 6.2
Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
CPE: p-cpe:/a:amazon:linux:linuxptp, p-cpe:/a:amazon:linux:linuxptp-debuginfo, cpe:/o:amazon:linux:2
Required KB Items: Host/local_checks_enabled, Host/AmazonLinux/release, Host/AmazonLinux/rpm-list
Exploit Ease: No known exploits are available
Patch Publication Date: 9/8/2021
Vulnerability Publication Date: 7/8/2021
Reference Information
CVE: CVE-2021-3571
ALAS: 2021-1705