CVE-2016-4537 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...
CriticalCVSS 9.8
EPSS 5.7%
- Published
- Updated
- Exploit status
- No public exploit known
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.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| PHP | <= 5.5.34 | No fix listed |
| PHP | = 5.6.0 | No fix listed |
| PHP | = 5.6.1 | No fix listed |
| PHP | = 5.6.2 | No fix listed |
| PHP | = 5.6.3 | No fix listed |
| PHP | = 5.6.4 | No fix listed |
| PHP | = 5.6.5 | No fix listed |
| PHP | = 5.6.6 | No fix listed |
| PHP | = 5.6.7 | No fix listed |
| PHP | = 5.6.8 | No fix listed |
| PHP | = 5.6.9 | No fix listed |
| PHP | = 5.6.10 | No fix listed |
| PHP | = 5.6.11 | No fix listed |
| PHP | = 5.6.12 | No fix listed |
| PHP | = 5.6.13 | No fix listed |
| PHP | = 5.6.14 | No fix listed |
| PHP | = 5.6.15 | No fix listed |
| PHP | = 5.6.16 | No fix listed |
| PHP | = 5.6.17 | No fix listed |
| PHP | = 5.6.18 | No fix listed |
| PHP | = 5.6.19 | No fix listed |
| PHP | = 5.6.20 | No fix listed |
| PHP | = 7.0.0 | No fix listed |
| PHP | = 7.0.1 | No fix listed |
| PHP | = 7.0.2 | No fix listed |
Show 5 more
| Product | Affected versions | Fixed in |
|---|---|---|
| PHP | = 7.0.3 | No fix listed |
| PHP | = 7.0.4 | No fix listed |
| PHP | = 7.0.5 | No fix listed |
| openSUSE leap | = 42.1 | No fix listed |
| fedoraproject fedora | = 24 | No fix listed |
References
- FEDORA-2016-f4e73663f4 vendor-advisory
- openSUSE-SU-2016:1357 vendor-advisory
- openSUSE-SU-2016:1524 vendor-advisory
- php.net patch
- php.net patch
- RHSA-2016:2750 vendor-advisory
- DSA-3602 vendor-advisory
- [oss-security] 20160505 CVE Request: PHP: several issues fixed with 7.0.6, 5.6.21 and 5.5.35 mailing-list
- 90173 vdb-entry
- bugs.php.net exploit
- git.php.net
- h20566.www2.hpe.com
- h20566.www2.hpe.com
- h20566.www2.hpe.com
- GLSA-201611-22 vendor-advisory