CVE-2016-4538 Detail
Modified
This vulnerability has been modified since it was last analyzed by the NVD. It is awaiting reanalysis which may result in further changes to the information provided.
Description
The bcpowmod function in ext/bcmath/bcmath.c in PHP before 5.5.35, 5.6.x before 5.6.21, and 7.x before 7.0.6 modifies certain data structures without considering whether they are copies of the _zero_, _one_, or _two_ global variable, which allows remote attackers to cause a denial of service or possibly have unspecified other impact via a crafted call.
Source:
MITRE
Description Last Modified:
05/21/2016
Impact
CVSS v3.0 Severity and Metrics:
Base Score:
9.8 CRITICAL
Vector:
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
(V3 legend)
Impact Score:
5.9
Exploitability Score:
3.9
Attack Vector (AV):
Network
Attack Complexity (AC):
Low
Privileges Required (PR):
None
User Interaction (UI):
None
Scope (S):
Unchanged
Confidentiality (C):
High
Integrity (I):
High
Availability (A):
High
CVSS v2.0 Severity and Metrics:
Base Score:
7.5 HIGH
Vector:
(AV:N/AC:L/Au:N/C:P/I:P/A:P)
(V2 legend)
Impact Subscore:
6.4
Exploitability Subscore:
10.0
Access Vector (AV):
Network
Access Complexity (AC):
Insufficient_Info
Authentication (AU):
None
Confidentiality (C):
Partial
Integrity (I):
Partial
Availability (A):
Partial
Additional Information:
Allows unauthorized disclosure of information
Allows unauthorized modification
Allows disruption of service
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Change History
14 change records found
- show changes
CPE Deprecation Remap -
10/30/2018 12:27:32 PM
| Action |
Type |
Old Value |
New Value |
| Changed |
CPE Configuration |
OR
*cpe:2.3:o:novell:leap:42.1:*:*:*:*:*:*:* |
OR
*cpe:2.3:o:opensuse:leap:42.1:*:*:*:*:*:*:* |
CVE Modified by MITRE -
1/4/2018 9:30:54 PM
| Action |
Type |
Old Value |
New Value |
| Added |
Reference |
|
http://rhn.redhat.com/errata/RHSA-2016-2750.html [No Types Assigned] |
CVE Modified by MITRE -
6/30/2017 9:29:47 PM
| Action |
Type |
Old Value |
New Value |
| Added |
Reference |
|
https://security.gentoo.org/glsa/201611-22 [No Types Assigned] |
CVE Modified by MITRE -
2/16/2017 9:59:12 PM
| Action |
Type |
Old Value |
New Value |
| Added |
Reference |
|
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05390722 [No Types Assigned] |
CVE Modified by MITRE -
11/30/2016 10:11:01 PM
| Action |
Type |
Old Value |
New Value |
| Added |
Reference |
|
http://lists.opensuse.org/opensuse-updates/2016-05/msg00086.html [No Types Assigned] |
CVE Modified by MITRE -
11/28/2016 3:18:43 PM
| Action |
Type |
Old Value |
New Value |
| Added |
Reference |
|
http://www.debian.org/security/2016/dsa-3602 [No Types Assigned] |
| Added |
Reference |
|
http://www.securityfocus.com/bid/90173 [No Types Assigned] |
CVE Modified by Source -
10/28/2016 9:59:24 PM
| Action |
Type |
Old Value |
New Value |
| Added |
Reference |
|
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05320149 |
CVE Modified by Source -
8/23/2016 10:00:00 PM
| Action |
Type |
Old Value |
New Value |
| Added |
Reference |
|
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05240731 |
Modified Analysis -
6/15/2016 12:35:59 PM
| Action |
Type |
Old Value |
New Value |
| Changed |
CPE Configuration |
Record truncated, showing 500 of 1505 characters.
View Entire Change Record
Configuration 1
OR
*cpe:2.3:a:php:php:7.0.5:*:*:*:*:*:*:*
*cpe:2.3:a:php:php:7.0.4:*:*:*:*:*:*:*
*cpe:2.3:a:php:php:7.0.3:*:*:*:*:*:*:*
*cpe:2.3:a:php:php:7.0.2:*:*:*:*:*:*:*
*cpe:2.3:a:php:php:7.0.1:*:*:*:*:*:*:*
*cpe:2.3:a:php:php:7.0.0:*:*:*:*:*:*:*
*cpe:2.3:a:php:php:5.6.20:*:*:*:*:*:*:*
*cpe:2.3:a:php:php:5.6.19:*:*:*:*:*:*:*
*cpe:2.3:a:php:php:5.6.18:*:*:*:*:*:*:*
*cpe:2.3:a:php:php:5.6 |
Record truncated, showing 500 of 1581 characters.
View Entire Change Record
Configuration 1
OR
*cpe:2.3:a:php:php:7.0.5:*:*:*:*:*:*:*
*cpe:2.3:a:php:php:7.0.4:*:*:*:*:*:*:*
*cpe:2.3:a:php:php:7.0.3:*:*:*:*:*:*:*
*cpe:2.3:a:php:php:7.0.2:*:*:*:*:*:*:*
*cpe:2.3:a:php:php:7.0.1:*:*:*:*:*:*:*
*cpe:2.3:a:php:php:7.0.0:*:*:*:*:*:*:*
*cpe:2.3:a:php:php:5.6.20:*:*:*:*:*:*:*
*cpe:2.3:a:php:php:5.6.19:*:*:*:*:*:*:*
*cpe:2.3:a:php:php:5.6.18:*:*:*:*:*:*:*
*cpe:2.3:a:php:php:5.6 |
CVE Modified by Source -
6/14/2016 10:00:48 PM
| Action |
Type |
Old Value |
New Value |
| Added |
Reference |
|
http://lists.opensuse.org/opensuse-updates/2016-06/msg00027.html |
Modified Analysis -
6/3/2016 10:45:50 AM
| Action |
Type |
Old Value |
New Value |
| Changed |
CPE Configuration |
Record truncated, showing 500 of 1422 characters.
View Entire Change Record
Configuration 1
OR
*cpe:2.3:a:php:php:7.0.5:*:*:*:*:*:*:*
*cpe:2.3:a:php:php:7.0.4:*:*:*:*:*:*:*
*cpe:2.3:a:php:php:7.0.3:*:*:*:*:*:*:*
*cpe:2.3:a:php:php:7.0.2:*:*:*:*:*:*:*
*cpe:2.3:a:php:php:7.0.1:*:*:*:*:*:*:*
*cpe:2.3:a:php:php:7.0.0:*:*:*:*:*:*:*
*cpe:2.3:a:php:php:5.6.20:*:*:*:*:*:*:*
*cpe:2.3:a:php:php:5.6.19:*:*:*:*:*:*:*
*cpe:2.3:a:php:php:5.6.18:*:*:*:*:*:*:*
*cpe:2.3:a:php:php:5.6 |
Record truncated, showing 500 of 1505 characters.
View Entire Change Record
Configuration 1
OR
*cpe:2.3:a:php:php:7.0.5:*:*:*:*:*:*:*
*cpe:2.3:a:php:php:7.0.4:*:*:*:*:*:*:*
*cpe:2.3:a:php:php:7.0.3:*:*:*:*:*:*:*
*cpe:2.3:a:php:php:7.0.2:*:*:*:*:*:*:*
*cpe:2.3:a:php:php:7.0.1:*:*:*:*:*:*:*
*cpe:2.3:a:php:php:7.0.0:*:*:*:*:*:*:*
*cpe:2.3:a:php:php:5.6.20:*:*:*:*:*:*:*
*cpe:2.3:a:php:php:5.6.19:*:*:*:*:*:*:*
*cpe:2.3:a:php:php:5.6.18:*:*:*:*:*:*:*
*cpe:2.3:a:php:php:5.6 |
| Changed |
Reference Type |
http://php.net/ChangeLog-5.php No Types Assigned |
http://php.net/ChangeLog-5.php Patch |
| Changed |
Reference Type |
http://php.net/ChangeLog-7.php No Types Assigned |
http://php.net/ChangeLog-7.php Patch |
CVE Modified by Source -
6/2/2016 10:01:40 PM
| Action |
Type |
Old Value |
New Value |
| Added |
Reference |
|
http://lists.fedoraproject.org/pipermail/package-announce/2016-May/183736.html |
Modified Analysis -
5/24/2016 10:12:47 AM
| Action |
Type |
Old Value |
New Value |
| Added |
CPE Configuration |
|
Record truncated, showing 500 of 1422 characters.
View Entire Change Record
Configuration 1
OR
*cpe:2.3:a:php:php:7.0.5:*:*:*:*:*:*:*
*cpe:2.3:a:php:php:7.0.4:*:*:*:*:*:*:*
*cpe:2.3:a:php:php:7.0.3:*:*:*:*:*:*:*
*cpe:2.3:a:php:php:7.0.2:*:*:*:*:*:*:*
*cpe:2.3:a:php:php:7.0.1:*:*:*:*:*:*:*
*cpe:2.3:a:php:php:7.0.0:*:*:*:*:*:*:*
*cpe:2.3:a:php:php:5.6.20:*:*:*:*:*:*:*
*cpe:2.3:a:php:php:5.6.19:*:*:*:*:*:*:*
*cpe:2.3:a:php:php:5.6.18:*:*:*:*:*:*:*
*cpe:2.3:a:php:php:5.6 |
| Added |
CVSS V2 |
|
(AV:N/AC:L/Au:N/C:P/I:P/A:P) |
| Added |
CVSS V3 |
|
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| Added |
CWE |
|
CWE-20 |
| Changed |
Reference Type |
https://bugs.php.net/bug.php?id=72093 No Types Assigned |
https://bugs.php.net/bug.php?id=72093 Exploit |
Initial CVE Analysis -
5/23/2016 8:11:40 PM
Quick Info
CVE Dictionary Entry:
CVE-2016-4538
NVD Published Date:
05/21/2016
NVD Last Modified:
10/30/2018
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