Bug 1315328 (CVE-2016-3141)
| Summary: | CVE-2016-3141 php: Use after free in WDDX Deserialize when processing XML data | ||
|---|---|---|---|
| Product: | [Other] Security Response | Reporter: | Adam Mariš <amaris> |
| Component: | vulnerability | Assignee: | Red Hat Product Security <security-response-team> |
| Status: | CLOSED ERRATA | QA Contact: | |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | unspecified | CC: | abhgupta, dmcphers, fedora, jialiu, jokerman, jorton, kseifried, lmeyer, mmaslano, mmccomas, rcollet, sardella, tiwillia, webstack-team, yozone |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | php 5.5.33, php 5.6.19, php 7.0.4 | Doc Type: | Bug Fix |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2016-06-16 11:51:22 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | 1315330 | ||
| Bug Blocks: | 1315348 | ||
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Description
Adam Mariš
2016-03-07 13:39:01 UTC
Created php tracking bugs for this issue: Affects: fedora-all [bug 1315330] CVE assignment: http://seclists.org/oss-sec/2016/q1/625 This issue happens when untrusted input is unserialized. Doing so it documented as being unsafe: http://php.net/manual/en/function.wddx-deserialize.php Warning Do not pass untrusted user input to wddx_deserialize(). Unserialization can result in code being loaded and executed due to object instantiation and autoloading, and a malicious user may be able to exploit this. Affected code is part of the WDDX extension. In Red Hat products, this extension is packaged in the php-xml subpackages. Systems without php-xml installed can not be affected by this issue. If system requires one of the other extensions packaged in php-xml packages, but not the WDDX extension, it is possible to prevent PHP from loading the extension by commenting out the following line in the wddx.ini configuration file: extension=wddx.so The configuration file can be found in the php.d configuration directory. Depending on whether PHP packages from Red Hat Enterprise Linux or Red Hat Software Collections are used, php.d directory can be found in one of the following locations: /etc, /opt/rh/<collection>/root/etc/, or /etc/opt/rh/<collection>/. This issue has been addressed in the following products: Red Hat Software Collections for Red Hat Enterprise Linux 6 Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUS Red Hat Software Collections for Red Hat Enterprise Linux 7 Red Hat Software Collections for Red Hat Enterprise Linux 7.2 EUS Red Hat Software Collections for Red Hat Enterprise Linux 7.3 EUS Via RHSA-2016:2750 https://rhn.redhat.com/errata/RHSA-2016-2750.html |