=========================================================================Ubuntu Security Notice USN-5593-1
September 01, 2022

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

- Ubuntu 16.04 ESM

Summary:

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

Software Description:
- libzstd: fast lossless compression algorithm

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 16.04 ESM:
  libzstd1                        1.3.1+dfsg-1~ubuntu0.16.04.1+esm2
  zstd                            1.3.1+dfsg-1~ubuntu0.16.04.1+esm2

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

References:
  https://ubuntu.com/security/notices/USN-5593-1
  CVE-2019-11922

Ubuntu 5593-1: Zstandard vulnerability

September 2, 2022
Zstandard could be made to execute arbitrary code if it received specially crafted input.

Summary

Update Instructions

The problem can be corrected by updating your system to the following package versions: Ubuntu 16.04 ESM: libzstd1 1.3.1+dfsg-1~ubuntu0.16.04.1+esm2 zstd 1.3.1+dfsg-1~ubuntu0.16.04.1+esm2 In general, a standard system update will make all the necessary changes.

References

https://ubuntu.com/security/notices/USN-5593-1

CVE-2019-11922

Severity
September 01, 2022

Package Information

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