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             AUSCERT External Security Bulletin Redistribution

         APSB21-42 Security update available for Adobe Illustrator
                               14 July 2021


        AusCERT Security Bulletin Summary

Product:           Adobe Illustrator
Publisher:         Adobe
Operating System:  Windows
Impact/Access:     Execute Arbitrary Code/Commands -- Existing Account
                   Access Confidential Data        -- Existing Account
                   Reduced Security                -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2021-28593 CVE-2021-28592 CVE-2021-28591

Original Bulletin: 

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Security Updates Available for Adobe Illustrator | APSB21-42

Bulletin ID                  Date Published                Priority

ASPB21-42                  July 13, 2021                     3


Adobe has released an update for Adobe Illustrator 2021. This update resolves a
critical and an important vulnerabilities that could lead to arbitrary code
execution in the context of current user.

Affected Versions

Product                           Version                    Platform

Illustrator 2021         25.2.3 and earlier versions               Windows


Adobe categorizes these updates with the following priority ratings and
recommends users update their installation to the newest version via the
Creative Cloud desktop app's update mechanism. For more information, please
reference this help page .

Product        Version        Platform         Priority    Availability

Illustrator 2021     25.3     Windows and macOS     3          Download Page

Vulnerability details

Vulnerability Vulnerability            CVSS
  Category       Impact     Severity   base      CVSS vector      CVE Numbers

Use After     Arbitrary                      CVSS:3.1/AV:L/AC:L/
Free          file system   Important 3.3    PR:N/UI:R/S:U/C:L/  CVE-2021-28593
              read                           I:N/A:N
( CWE-416 )

Out-of-bounds Arbitrary                      CVSS:3.1/AV:L/AC:L/ CVE-2021-28591
write         code          Critical  7.8    PR:N/UI:R/S:U/C:H/
              execution                      I:H/A:H             CVE-2021-28592
( CWE-787 )


Adobe would like to thank Mat Powell (@mrpowell) & Joshua Smith (@kernelsmith)
of Trend Micro Zero Day Initiative for reporting these issues and for working
with Adobe to help protect our customers.

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