Vulnerability 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.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Php | Php | <= 5.6.30 |
Related Weaknesses (CWE)
References
- http://php.net/ChangeLog-5.phpRelease NotesVendor Advisory
- http://php.net/ChangeLog-7.phpRelease NotesVendor Advisory
- http://www.securityfocus.com/bid/99490Third Party AdvisoryVDB Entry
- https://access.redhat.com/errata/RHSA-2018:1296
- https://bugs.php.net/bug.php?id=74111Vendor Advisory
- https://usn.ubuntu.com/3566-1/
- https://usn.ubuntu.com/3566-2/
- https://www.debian.org/security/2018/dsa-4080
- https://www.debian.org/security/2018/dsa-4081
- http://php.net/ChangeLog-5.phpRelease NotesVendor Advisory
- http://php.net/ChangeLog-7.phpRelease NotesVendor Advisory
- http://www.securityfocus.com/bid/99490Third Party AdvisoryVDB Entry
- https://access.redhat.com/errata/RHSA-2018:1296
- https://bugs.php.net/bug.php?id=74111Vendor Advisory
- https://usn.ubuntu.com/3566-1/
FAQ
What is CVE-2017-12933?
CVE-2017-12933 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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....
How severe is CVE-2017-12933?
CVE-2017-12933 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2017-12933?
Check the references section above for vendor advisories and patch information. Affected products include: Php Php.