[USN-4108-1] Zstandard vulnerability

[Leonidas S. Barbosa]

==========================================================================
Ubuntu Security Notice USN-4108-1
August 21, 2019

libzstd vulnerability
==========================================================================

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

- Ubuntu 18.04 LTS

Summary:

Zstandard could be made to execute arbitrary code if it received
specially crafted input.

Software Description:
- libzstd: fast lossless compression algorithm -- development files

Details:

It was discovered that Zstandard incorrectly handled certain inputs.
An attacker could possibly use this issue to execute arbitrary code.

Update instructions:

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

Ubuntu 18.04 LTS:
  libzstd1                        1.3.3+dfsg-2ubuntu1.1
  zstd                            1.3.3+dfsg-2ubuntu1.1

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

References:
  https://usn.ubuntu.com/4108-1
  CVE-2019-11922

Package Information:
  https://launchpad.net/ubuntu/+source/libzstd/1.3.3+dfsg-2ubuntu1.1
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 819 bytes
Desc: not available
URL: <https://lists.ubuntu.com/archives/ubuntu-security-announce/attachments/20190821/113dfe80/attachment.sig>