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Ubuntu Security Notice USN-5593-1

Ubuntu Security Notice USN-5593-1
Posted Sep 2, 2022
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5593-1 - It was discovered that Zstandard incorrectly handled certain inputs. An attacker could possibly use this issue to execute arbitrary code.

tags | advisory, arbitrary
systems | linux, ubuntu
advisories | CVE-2019-11922
SHA-256 | 6c6d0e7fbb09717c24a94782754e271932af3f6050cdeb05d28a46806df79344

Ubuntu Security Notice USN-5593-1

Change Mirror Download
=========================================================================
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
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