CVE-2016-4537
Critical
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 accepts a negative integer for the scale argument, which allows remote attackers to cause a denial of service or possibly have unspecified other impact via a crafted call.
SeverityCritical
CVSS9.8
Exploit probability—
Product
Php
PublishedMay 22, 2016
First seenMay 22, 2016
How to fix
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| php php | v ≤ 5.5.34, 5.6.0, 5.6.1, 5.6.2, 5.6.3, 5.6.4, 5.6.5, 5.6.6, 5.6.7, 5.6.8, 5.6.9, 5.6.10, 5.6.11, 5.6.12, 5.6.13, 5.6.14, 5.6.15, 5.6.16, 5.6.17, 5.6.18, 5.6.19, 5.6.20, 7.0.0, 7.0.1, 7.0.2, 7.0.3, 7.0.4, 7.0.5 | — |
| opensuse leap | 42.1 | — |
| fedoraproject fedora | 24 | — |
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