Vulnerability identifier: #VU54573

Vulnerability risk: High

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-3570

CWE-ID: CWE-119

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
linuxptp
Universal components / Libraries / Libraries used by multiple products

Vendor: Richard Cochran

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error when forwarding PTP messages between ports in ptp41 program. A remote attacker can send specially crafted messages to the application, trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

linuxptp: 1.0 - 3.1

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External links
http://seclists.org/oss-sec/2021/q3/4
http://bugzilla.redhat.com/show_bug.cgi?id=1966240

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.