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Debian Security Advisory DSA-4938-1                   security@debian.org
https://www.debian.org/security/                     Salvatore Bonaccorso
July 13, 2021                         https://www.debian.org/security/faq
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Package        : linuxptp
CVE ID         : CVE-2021-3570
Debian Bug     : 990748

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 the stable distribution (buster), this problem has been fixed in
version 1.9.2-1+deb10u1.

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/source-package/linuxptp

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/

Mailing list: debian-security-announce@lists.debian.org

Debian: DSA-4938-1: linuxptp security update

July 13, 2021
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...

Summary

For the stable distribution (buster), this problem has been fixed in
version 1.9.2-1+deb10u1.

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/source-package/linuxptp

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/

Mailing list: debian-security-announce@lists.debian.org

Severity
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.

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