# [Important] Photon OS Security Update   
## Summary   
Advisory ID : PHSA-2021-4.0-0005    
Type : Security   
Severity : ['Important', 'Moderate']    
Issued on : 2021-03-16   
Affected Versions : Photon OS 4.0    
   
## Details   
An update of {'glibc'} packages of Photon OS has been released.   
   
## Affected Packages:    
### Important    
glibc - ['[CVE-2021-3326](https://nvd.nist.gov/vuln/detail/CVE-2021-3326)']    
### Moderate    
glibc - ['[CVE-2019-25013](https://nvd.nist.gov/vuln/detail/CVE-2019-25013)', '[CVE-2020-29562](https://nvd.nist.gov/vuln/detail/CVE-2020-29562)']   
   
## Solution     
Update the affected packages (tdnf update _package_)     
Note: For packages ['glibc'] after updating, a reboot is required for taking effect.   
## Updated Packages Information    
glibc-2.32-4.ph4.x86_64.rpm , sha256 : abe6e3e120e524916b561c08f7ba653d407c53d8a55c9defe52726cd0f070926 , size : 2.7M , build_date : Tue, 16 Mar 2021 02:54:57 UTC    
glibc-devel-2.32-4.ph4.x86_64.rpm , sha256 : c5180f4053421b64f1305f10d0b650faf301b0a39cd47210449c9c480201a2fb , size : 1.9M , build_date : Tue, 16 Mar 2021 02:54:57 UTC    
glibc-i18n-2.32-4.ph4.x86_64.rpm , sha256 : d56f6bdf6679a3e6c87a4bac3a8dfcb18c131a2e37989f961f4e5497409f9d48 , size : 3.7M , build_date : Tue, 16 Mar 2021 02:54:57 UTC    
glibc-iconv-2.32-4.ph4.x86_64.rpm , sha256 : e59845b7a855d006cb6e1859a5b0441fdf35130ebf5aa25f17e79f75f47f6672 , size : 1.6M , build_date : Tue, 16 Mar 2021 02:54:57 UTC    
glibc-lang-2.32-4.ph4.x86_64.rpm , sha256 : 85be3bce289d38a1752764a6a3ce6f737bfe85c6dd84d5b979cc3d4553694aba , size : 720K , build_date : Tue, 16 Mar 2021 02:54:57 UTC    
glibc-nscd-2.32-4.ph4.x86_64.rpm , sha256 : ae6c8daa22bf8047d7b22a9906cf9da0cb950ae5e66235ff82378de735eb09e7 , size : 75K , build_date : Tue, 16 Mar 2021 02:54:57 UTC    
glibc-tools-2.32-4.ph4.x86_64.rpm , sha256 : 83ad1f499d826bea94620089435cb95f0222438c81b474b93eef7705a3995737 , size : 325K , build_date : Tue, 16 Mar 2021 02:54:57 UTC