Bug 1323108 – CVE-2016-4071 php: Format string vulnerability in php_snmp_error()

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Bug 1323108 - (CVE-2016-4071) CVE-2016-4071 php: Format string vulnerability in php_snmp_error()

Summary:	CVE-2016-4071 php: Format string vulnerability in php_snmp_error()

Status:	CLOSED WONTFIX

Aliases:	CVE-2016-4071

Product:	Security Response
Classification:	Other
Component:	vulnerability (Show other bugs)
Sub Component:
Version:	unspecified
Hardware:	All Linux

Priority	medium Severity medium
Target Milestone:	---
Target Release:	---
Assigned To:	Red Hat Product Security
QA Contact:
Docs Contact:

URL:
Whiteboard:	impact=moderate,public=20160302,repor...
Keywords:	Security

Depends On:	1323112
Blocks:	1323121
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Reported:	2016-04-01 06:09 EDT by Adam Mariš
Modified:	2017-06-23 07:03 EDT (History)
CC List:	14 users (show)

See Also:
Fixed In Version:	php 5.5.34, php 5.6.20, php 7.0.5
Doc Type:	Bug Fix
Doc Text:
Story Points:	---
Clone Of:
Environment:
Last Closed:	2017-06-23 07:03:51 EDT
Type:	---
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

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Add an attachment (proposed patch, testcase, etc.)

External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Red Hat Product Errata	RHSA-2016:2750	normal	SHIPPED_LIVE	Moderate: rh-php56 security, bug fix, and enhancement update	2016-11-15 11:40:02 EST

Groups: None (edit)

Description Adam Mariš 2016-04-01 06:09:35 EDT

A format string vulnerability was found in php_snmp_error() in ext/snmp/snmp.c, possibly leading to code execution. snmp_object->snmp_errstr is passed directly to zend_throw_exception_ex() without a "%s".

Upstream bug:

https://bugs.php.net/bug.php?id=71704

Upstream patch:

https://git.php.net/?p=php-src.git;a=commit;h=6e25966544fb1d2f3d7596e060ce9c9269bbdcf8

Comment 1 Adam Mariš 2016-04-01 06:10:52 EDT

Created php tracking bugs for this issue:

Affects: fedora-all [bug 1323112]

Comment 2 Fedora Update System 2016-04-09 10:21:01 EDT

php-5.6.20-1.fc22 has been pushed to the Fedora 22 stable repository. If problems still persist, please make note of it in this bug report.

Comment 3 Fedora Update System 2016-04-09 10:22:30 EDT

php-5.6.20-1.fc23 has been pushed to the Fedora 23 stable repository. If problems still persist, please make note of it in this bug report.

Comment 6 Stefan Cornelius 2016-05-04 12:03:11 EDT

SNMP is usually only used within LANs, which limits the attack vector. Additionally, this is only an issue if exception processing is enabled for the SNMP object-

Mitigation:

Do not enable exceptions when using the SNMP object.

Comment 8 errata-xmlrpc 2016-11-15 06:50:45 EST

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

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