# Critical Photon OS Security Update

## Summary
  
Advisory Id     : PHSA-2021-4.0-0035
  
Type            : Security
  
Severity        : ['Critical', 'Important', 'Moderate']
  
Issue date      : 2021-06-02
  
Affected Release: 4.0

## Details
  
Updates of ['runc', 'libxml2', 'gnutls'] packages of Photon OS have been released.
## Affected Packages

### Critical
  
gnutls - ['[CVE-2021-20231](https://nvd.nist.gov/vuln/detail/CVE-2021-20231)', '[CVE-2021-20232](https://nvd.nist.gov/vuln/detail/CVE-2021-20232)']

### Important
  
runc - ['[CVE-2021-30465](https://nvd.nist.gov/vuln/detail/CVE-2021-30465)']
  
libxml2 - ['[CVE-2021-3517](https://nvd.nist.gov/vuln/detail/CVE-2021-3517)', '[CVE-2021-3518](https://nvd.nist.gov/vuln/detail/CVE-2021-3518)']

### Moderate
  
libxml2 - ['[CVE-2021-3537](https://nvd.nist.gov/vuln/detail/CVE-2021-3537)']

## Solution
  
Update the affected packages (tdnf update package)

## Updated Packages Information
  
libxml2-2.9.11-1.ph4.x86_64.rpm | size : 1.2M , sha256 : 320a3ac85411ec64c924d819556896fe3c9f944366a88c58fd0cca9897809bbc , build time : Wed, 02 Jun 2021 02:51:39 UTC
  
libxml2-devel-2.9.11-1.ph4.x86_64.rpm | size : 88K , sha256 : 1700c1a0d9bedce8ee05d642e21a3e294bec655bd8f2590c81c37302cd903f05 , build time : Wed, 02 Jun 2021 02:51:39 UTC
  
gnutls-3.7.1-1.ph4.x86_64.rpm | size : 1.4M , sha256 : a3caffe542cd01efafc8ab5411392a9e7404dc94b275eae3b9cb42f97ade9923 , build time : Wed, 02 Jun 2021 02:51:42 UTC
  
gnutls-devel-3.7.1-1.ph4.x86_64.rpm | size : 1.2M , sha256 : ed0016e117f8ab1df07ee010f3217fb801a36b9969e11051891534cc6a7effc9 , build time : Wed, 02 Jun 2021 02:51:42 UTC