USN-5261-1: Phusion Passenger vulnerabilities

1 February 2022

Several security issues were fixed in Phusion Passenger.

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Packages

Details

It was discovered that Phusion Passenger incorrectly handled a file path in
the application root folder. An attacker could possibly use this issue to
read arbitrary files. (CVE-2017-16355)

It was discovered that Phusion Passenger had a race condition in the nginx
module that could be used to perform a symlink attack. An attacker could
possibly use this issue to escalate privileges. (CVE-2018-12029)

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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

In general, a standard system update will make all the necessary changes.

References

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