Amazon Linux 2 Security Advisory: ALAS-2021-1697
Advisory Release Date: 2021-08-04 20:32 Pacific
Advisory Updated Date: 2021-08-05 21:23 Pacific
Severity:
Important
Issue Overview:
A flaw was found in the ptp4l program of the linuxptp package. A missing length check when forwarding a PTP message between ports allows a remote attacker to cause an information leak, crash, or potentially remote code execution. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. (CVE-2021-3570)
Affected Packages:
linuxptp
Note:
This advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories.
Issue Correction:
Run yum update linuxptp to update your system.
New Packages:
aarch64:
linuxptp-2.0-2.amzn2.1.aarch64
linuxptp-debuginfo-2.0-2.amzn2.1.aarch64
i686:
linuxptp-2.0-2.amzn2.1.i686
linuxptp-debuginfo-2.0-2.amzn2.1.i686
src:
linuxptp-2.0-2.amzn2.1.src
x86_64:
linuxptp-2.0-2.amzn2.1.x86_64
linuxptp-debuginfo-2.0-2.amzn2.1.x86_64