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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.
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 View Analysis Description
Source: MITRE
Base Score: 9.8 CRITICAL Vector: AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H (V3.0 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
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 informationAllows unauthorized modificationAllows disruption of service
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Vulnerability Type (View All)
OR *cpe:2.3:o:novell:leap:42.1:*:*:*:*:*:*:*
OR *cpe:2.3:o:opensuse:leap:42.1:*:*:*:*:*:*:*
http://rhn.redhat.com/errata/RHSA-2016-2750.html [No Types Assigned]
https://security.gentoo.org/glsa/201611-22 [No Types Assigned]
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05390722 [No Types Assigned]
http://lists.opensuse.org/opensuse-updates/2016-05/msg00086.html [No Types Assigned]
http://www.debian.org/security/2016/dsa-3602 [No Types Assigned]
http://www.securityfocus.com/bid/90173 [No Types Assigned]
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05320149
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05240731
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
http://lists.opensuse.org/opensuse-updates/2016-06/msg00027.html
http://php.net/ChangeLog-5.php No Types Assigned
http://php.net/ChangeLog-5.php Patch
http://php.net/ChangeLog-7.php No Types Assigned
http://php.net/ChangeLog-7.php Patch
http://lists.fedoraproject.org/pipermail/package-announce/2016-May/183736.html
(AV:N/AC:L/Au:N/C:P/I:P/A:P)
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE-20
https://bugs.php.net/bug.php?id=72093 No Types Assigned
https://bugs.php.net/bug.php?id=72093 Exploit