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             AUSCERT External Security Bulletin Redistribution

                               ESB-2021.0921
                   USN-4880-1: OpenJPEG vulnerabilities
                               17 March 2021

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           OpenJPEG
Publisher:         Ubuntu
Operating System:  Ubuntu
Impact/Access:     Execute Arbitrary Code/Commands -- Existing Account
                   Denial of Service               -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2020-27814 CVE-2020-27823 CVE-2020-27824
                   CVE-2020-27841 CVE-2020-27845 

Reference:         ESB-2021.0440
                   ESB-2021.0084

Original Bulletin: 
   https://ubuntu.com/security/notices/USN-4880-1

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USN-4880-1: OpenJPEG vulnerabilities
16 March 2021

Several security issues were fixed in OpenJPEG.
Releases

  o Ubuntu 16.04 LTS

Packages

  o openjpeg2 - JPEG 2000 image compression/decompression library

Details

It was discovered that OpenJPEG incorrectly handled certain image data. An
attacker could use this issue to cause OpenJPEG to crash, leading to a
denial of service, or possibly execute arbitrary code.

Update instructions

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

Ubuntu 16.04

  o libopenjpip7 - 2.1.2-1.1+deb9u6build0.16.04.1
  o libopenjp3d7 - 2.1.2-1.1+deb9u6build0.16.04.1
  o libopenjp2-7 - 2.1.2-1.1+deb9u6build0.16.04.1

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

References

  o CVE-2020-27841
  o CVE-2020-27824
  o CVE-2020-27814
  o CVE-2020-27823
  o CVE-2020-27845

Related notices

  o USN-4685-1 : libopenjpip7, libopenjp3d7, libopenjp2-7, openjpeg2
  o USN-4686-1 : ghostscript, libgs9

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