USN-3911-2: file regression

file regression

A security issue affects these releases of Ubuntu and its derivatives:

Ubuntu 18.04 LTS
Ubuntu 16.04 LTS

Summary

USN-3911-1 introduced a regression in file.

Software Description

file – Tool to determine file types

Details

USN-3911-1 fixed vulnerabilities in file. One of the backported security
fixes introduced a regression that caused the interpreter string to be
truncated. This update fixes the problem.

We apologize for the inconvenience.

Original advisory details:

It was discovered that file incorrectly handled certain malformed ELF
files. An attacker could use this issue to cause a denial of service, or
possibly execute arbitrary code.

Update instructions

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

Ubuntu 18.04 LTS: file – 1:5.32-2ubuntu0.4; libmagic1 – 1:5.32-2ubuntu0.4
Ubuntu 16.04 LTS: file – 1:5.25-2ubuntu1.4; libmagic1 – 1:5.25-2ubuntu1.4

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

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

References

Source: USN-3911-2: file regression

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