1. Ubuntu Security Notices
  2. USN-3911-2

USN-3911-2: file regression

Publication date

13 May 2020

Overview

USN-3911-1 introduced a regression in file.

Releases

Packages

  • 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.

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

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

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
18.04 bionic file –  1:5.32-2ubuntu0.4
libmagic1 –  1:5.32-2ubuntu0.4
16.04 xenial file –  1:5.25-2ubuntu1.4
libmagic1 –  1:5.25-2ubuntu1.4

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References

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