Bug 1305543 (CVE-2016-2554)
Summary: | CVE-2016-2554 php: buffer overflow in handling of long link names in tar phar archives | ||
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Product: | [Other] Security Response | Reporter: | Adam Mariš <amaris> |
Component: | vulnerability | Assignee: | Red Hat Product Security <security-response-team> |
Status: | CLOSED ERRATA | QA Contact: | |
Severity: | low | Docs Contact: | |
Priority: | low | ||
Version: | unspecified | CC: | abhgupta, dmcphers, fedora, jialiu, jokerman, jorton, kseifried, lmeyer, mmaslano, mmccomas, rcollet, tiwillia, webstack-team |
Target Milestone: | --- | Keywords: | Security |
Target Release: | --- | ||
Hardware: | All | ||
OS: | Linux | ||
Whiteboard: | |||
Fixed In Version: | php 5.6.18, php 5.5.32 | Doc Type: | Bug Fix |
Doc Text: | Story Points: | --- | |
Clone Of: | Environment: | ||
Last Closed: | 2016-08-22 19:59:34 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: | 1305565 | ||
Bug Blocks: | 1305564 |
Description
Adam Mariš
2016-02-08 14:41:24 UTC
Created php tracking bugs for this issue: Affects: fedora-all [bug 1305565] CVE assignment: http://seclists.org/oss-sec/2016/q1/428 This is a stack-based buffer overflow, not stack overflow as indicated by the upstream bug summary. In PHP packages included in Red Hat products, this issue is mitigated by the use of FORTIFY_SOURCE. This protection causes the overflow to be detected before it actually happens and terminates program execution, limiting impact to crash of the PHP interpreter. Note that Phar files are distribution format for PHP applications (similar to Java Jar format) and their content is typically executed on the server. Malicious Phar archive can therefore execute code on the system without exploiting any parsing issues. If Phar extension is not used, it can be disabled by commenting out the following line: extension=phar.so in phar.ini to prevent loading of the extension. Given the limited impact of this issue, there's currently no plan to backport the fix to the versions of PHP as shipped in Red Hat products. 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 |