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nvd[email protected]NVD:CVE-2016-4538
HistoryMay 22, 2016 - 1:59 a.m.

CVE-2016-4538

2016-05-2201:59:22
CWE-20
web.nvd.nist.gov
1

7.5 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

9.8 High

AI Score

Confidence

High

0.036 Low

EPSS

Percentile

91.7%

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.

Affected configurations

NVD
Node
phpphpRange5.5.33
OR
phpphpMatch5.6.0
OR
phpphpMatch5.6.1
OR
phpphpMatch5.6.2
OR
phpphpMatch5.6.3
OR
phpphpMatch5.6.4
OR
phpphpMatch5.6.5
OR
phpphpMatch5.6.6
OR
phpphpMatch5.6.7
OR
phpphpMatch5.6.8
OR
phpphpMatch5.6.9
OR
phpphpMatch5.6.10
OR
phpphpMatch5.6.11
OR
phpphpMatch5.6.12
OR
phpphpMatch5.6.13
OR
phpphpMatch5.6.14
OR
phpphpMatch5.6.15
OR
phpphpMatch5.6.16
OR
phpphpMatch5.6.17
OR
phpphpMatch5.6.18
OR
phpphpMatch5.6.19
OR
phpphpMatch5.6.20
OR
phpphpMatch7.0.0
OR
phpphpMatch7.0.1
OR
phpphpMatch7.0.2
OR
phpphpMatch7.0.3
OR
phpphpMatch7.0.4
OR
phpphpMatch7.0.5
Node
fedoraprojectfedoraMatch24
Node
opensuseleapMatch42.1

7.5 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

9.8 High

AI Score

Confidence

High

0.036 Low

EPSS

Percentile

91.7%