USN-4574-1: libseccomp-golang vulnerability

7 October 2020

A system hardening measure could be bypassed.

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Packages

Details

It was discovered that libseccomp-golang did not properly generate BPFs. If
a process were running under a restrictive seccomp filter that specified
multiple syscall arguments, the application could potentially bypass the
intended restrictions put in place by seccomp.

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Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

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Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 16.04

After a standard system update anything that depends on libseccomp-golang needs
to be rebuilt to make all the necessary changes.

References

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