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             AUSCERT External Security Bulletin Redistribution

                               ESB-2021.0096
                    USN-4688-1: JasPer vulnerabilities
                              12 January 2021

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

Product:           JasPer
Publisher:         Ubuntu
Operating System:  Ubuntu
Impact/Access:     Execute Arbitrary Code/Commands -- Existing Account
                   Denial of Service               -- Existing Account
                   Access Confidential Data        -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2020-27828 CVE-2018-19542 CVE-2018-18873
                   CVE-2017-9782  

Reference:         ESB-2019.3702
                   ESB-2019.3679
                   ESB-2019.1402

Original Bulletin: 
   https://ubuntu.com/security/notices/USN-4688-1

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USN-4688-1: JasPer vulnerabilities
11 January 2021

Several security issues were fixed in JasPer.
Releases

  o Ubuntu 16.04 LTS

Packages

  o jasper - Library for manipulating JPEG-2000 files

Details

It was discovered that Jasper incorrectly certain files.
An attacker could possibly use this issue to cause a crash.
(CVE-2018-18873)

It was discovered that Jasper incorrectly handled certain files.
An attacker could possibly use this issue to cause a denial of service.
(CVE-2018-19542)

It was discovered that Jasper incorrectly handled certain JPC encoders.
An attacker could possibly use this issue to execute arbitrary code.
(CVE-2020-27828)

It was discovered that Jasper incorrectly handled certain images.
An attacker could possibly use this issue to expose sensitive information
or cause a crash.
(CVE-2017-9782)

Update instructions

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

Ubuntu 16.04

  o libjasper1 - 1.900.1-debian1-2.4ubuntu1.3

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

References

  o CVE-2017-9782
  o CVE-2018-18873
  o CVE-2018-19542
  o CVE-2020-27828

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