PHP: Multiple vulnerabilities

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2020.1611
                      USN-4330-2: PHP vulnerabilities
                                7 May 2020

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

Product:           PHP
Publisher:         Ubuntu
Operating System:  Ubuntu
Impact/Access:     Execute Arbitrary Code/Commands -- Remote with User Interaction
                   Denial of Service               -- Remote with User Interaction
                   Access Confidential Data        -- Remote with User Interaction
Resolution:        Patch/Upgrade
CVE Names:         CVE-2020-7066 CVE-2020-7065 CVE-2020-7064

Reference:         ESB-2020.1446
                   ESB-2020.1337

Original Bulletin: 
   https://usn.ubuntu.com/4330-2/

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USN-4330-2: PHP vulnerabilities
6 May 2020

php7.4 vulnerabilities
A security issue affects these releases of Ubuntu and its derivatives:

  o Ubuntu 20.04 LTS

Summary

Several security issues were fixed in PHP.

Software Description

  o php7.4 - server-side, HTML-embedded scripting language (metapackage)

Details

USN-4330-1 fixed vulnerabilities in PHP. This update provides the corresponding
update for Ubuntu 20.04 LTS.

Original advisory details:

It was discovered that PHP incorrectly handled certain EXIF files. An attacker
could possibly use this issue to access sensitive information or cause a crash.
(CVE-2020-7064)

It was discovered that PHP incorrectly handled certain UTF strings. An attacker
could possibly use this issue to cause a crash or execute arbitrary code.
(CVE-2020-7065)

It was discovered that PHP incorrectly handled certain URLs. An attacker could
possibly use this issue to expose sensitive information. (CVE-2020-7066)

Update instructions

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

Ubuntu 20.04 LTS
    libapache2-mod-php7.4 - 7.4.3-4ubuntu1.1
    php7.4-cgi - 7.4.3-4ubuntu1.1
    php7.4-cli - 7.4.3-4ubuntu1.1
    php7.4-fpm - 7.4.3-4ubuntu1.1
    php7.4-mbstring - 7.4.3-4ubuntu1.1

To update your system, please follow these instructions: https://
wiki.ubuntu.com/Security/Upgrades .

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

References

  o USN-4330-1
  o CVE-2020-7064
  o CVE-2020-7065
  o CVE-2020-7066

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