CVE-2017-12933
Last modified
CVE-2017-12933 is a vulnerability of currently unknown severity. The finish_nested_data function in ext/standard/var_unserializer.re in PHP before 5.6.31, 7.0.x before 7.0.21, and 7.1.x before 7.1.7 is prone to a buffer over-read while unserializing untrusted data. Exploitation of this issue can have an unspecified impact on the integrity of PHP.. EPSS estimates a 6.94% chance of exploitation in the next 30 days.
Description
The finish_nested_data function in ext/standard/var_unserializer.re in PHP before 5.6.31, 7.0.x before 7.0.21, and 7.1.x before 7.1.7 is prone to a buffer over-read while unserializing untrusted data. Exploitation of this issue can have an unspecified impact on the integrity of PHP.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Php | Php | <= 5.6.30 |
| Php | Php | 7.0.0 |
| Php | Php | 7.0.1 |
| Php | Php | 7.0.2 |
| Php | Php | 7.0.3 |
| Php | Php | 7.0.4 |
| Php | Php | 7.0.5 |
| Php | Php | 7.0.6 |
| Php | Php | 7.0.7 |
| Php | Php | 7.0.8 |
| Php | Php | 7.0.9 |
| Php | Php | 7.0.10 |
| Php | Php | 7.0.11 |
| Php | Php | 7.0.12 |
| Php | Php | 7.0.13 |
| Php | Php | 7.0.14 |
| Php | Php | 7.0.15 |
| Php | Php | 7.0.16 |
| Php | Php | 7.0.17 |
| Php | Php | 7.0.18 |
| Php | Php | 7.0.19 |
| Php | Php | 7.0.20 |
| Php | Php | 7.1.0 |
| Php | Php | 7.1.1 |
| Php | Php | 7.1.2 |
| Php | Php | 7.1.3 |
| Php | Php | 7.1.4 |
| Php | Php | 7.1.5 |
| Php | Php | 7.1.6 |
References
- http://php.net/ChangeLog-5.phpRelease Notes, Vendor Advisory
- http://php.net/ChangeLog-7.phpRelease Notes, Vendor Advisory
- http://www.securityfocus.com/bid/99490Third Party Advisory, VDB Entry
- https://bugs.php.net/bug.php?id=74111Vendor Advisory
- http://php.net/ChangeLog-5.phpRelease Notes, Vendor Advisory
- http://php.net/ChangeLog-7.phpRelease Notes, Vendor Advisory
- http://www.securityfocus.com/bid/99490Third Party Advisory, VDB Entry
- https://bugs.php.net/bug.php?id=74111Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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