Debian LTS Advisory ([SECURITY] [DLA 1674-1] php5 security update)

Published: 2019-02-11 23:00:00
CVE Author: NIST National Vulnerability Database (NVD)

CVSS Base Vector:
AV:N/AC:M/Au:N/C:P/I:P/A:P

Solution Type:
Vendor Patch

Detection Type:
Linux Distribution Package

Affected Versions:
php5 on Debian Linux

Recommendations:
For Debian 8 'Jessie', this problem has been fixed in version 5.6.39+dfsg-0+deb8u2. We recommend that you upgrade your php5 Linux Distribution Packages.

Summary:
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.

Detection Method:
This check tests the installed software version using the apt Linux Distribution Package manager.

NIST (National Institute of Standards and Technology) NVD (National Vulnerability Database)

https://nvd.nist.gov/vuln/detail/CVE-2018-1000888

References:

https://lists.debian.org/debian-lts-announce/2019/02/msg00020.html

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Severity
Medium
CVSS Score
6.8

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