Protect yourself against future threats.
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AUSCERT External Security Bulletin Redistribution
ESB-2021.2585
linuxptp security update
2 August 2021
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AusCERT Security Bulletin Summary
---------------------------------
Product: linuxptp
Publisher: Debian
Operating System: Debian GNU/Linux
Impact/Access: Execute Arbitrary Code/Commands -- Existing Account
Denial of Service -- Existing Account
Access Confidential Data -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2021-3570
Reference: ESB-2021.2560
ESB-2021.2540
ESB-2021.2388
ESB-2021.2364
Original Bulletin:
https://lists.debian.org/debian-lts-announce/2021/07/msg00025.html
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Debian LTS Advisory DLA-2723-1 debian-lts@lists.debian.org
https://www.debian.org/lts/security/ Thorsten Alteholz
July 31, 2021 https://wiki.debian.org/LTS
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Package : linuxptp
Version : 1.8-1+deb9u1
CVE ID : CVE-2021-3570
Miroslav Lichvar reported that the ptp4l program in linuxptp, an
implementation of the Precision Time Protocol (PTP), does not validate the
messageLength field of incoming messages, allowing a remote attacker to
cause a denial of service, information leak, or potentially remote code
execution.
For Debian 9 stretch, this problem has been fixed in version
1.8-1+deb9u1.
We recommend that you upgrade your linuxptp packages.
For the detailed security status of linuxptp please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/linuxptp
Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS
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