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             AUSCERT External Security Bulletin Redistribution

               [SECURITY] [DLA 1674-1] php5 security update
                             20 February 2019


        AusCERT Security Bulletin Summary

Product:           php5
Publisher:         Debian
Operating System:  Debian GNU/Linux 8
Impact/Access:     Execute Arbitrary Code/Commands -- Remote with User Interaction
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-1000888  

Reference:         ESB-2019.0274

Original Bulletin: 

Comment: This bulletin contains two (2) advisories.

Revision History:  February 20 2019: Add DLA 1679-1
                   February 13 2019: Initial Release

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Package        : php5
Version        : 5.6.40+dfsg-0+deb8u1

Several security bugs have been identified and fixed in php5, a
server-side, HTML-embedded scripting language.  The affected components
include GD graphics, multi-byte string handling, phar file format
handling, and xmlrpc.

CVEs have not yet been assigned.  Once the CVE assignments are
announced, the Debian Security Tracker will be updated with the relevant

For Debian 8 "Jessie", this problems have been fixed in version

We recommend that you upgrade your php5 packages.

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS

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Package        : php5
Version        : 5.6.39+dfsg-0+deb8u2
CVE ID         : CVE-2018-1000888

php-pear in php5 contains CWE-502 (Deserialization of Untrusted Data)
and CWE-915 (Improperly Controlled Modification of
Dynamically-Determined Object Attributes) vulnerabilities in its
Archive_Tar class. When extract is called without a specific prefix
path, can trigger unserialization by crafting a tar file with
`phar://[path_to_malicious_phar_file]` as path. Object injection can
be used to trigger destruct in the loaded PHP classes, all with
possible remote code execution that can result in files being deleted
or possibly modified.

For Debian 8 "Jessie", this problem has been fixed in version

We recommend that you upgrade your php5 packages.

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS

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