CVE-2017-12933
critical
CVSS v3
9.8
CVSS v2
7.5
VIR risk
9.8
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.
Predictions
Exploit likelihood
97%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2017-12933.html
Vendor advisory: cve@mitre.org — https://bugs.php.net/bug.php?id=74111
Vendor advisory: cve@mitre.org — http://php.net/ChangeLog-7.php
Vendor advisory: cve@mitre.org — http://php.net/ChangeLog-5.php
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| sles | affected | |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| php | php | {"endIncluding":"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.php
- http://php.net/ChangeLog-7.php
- http://www.securityfocus.com/bid/99490
- https://access.redhat.com/errata/RHSA-2018:1296
- https://bugs.php.net/bug.php?id=74111
- 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
- https://www.suse.com/security/cve/CVE-2017-12933.html
CWEs
CWE-125
Verify integrity in audit chain (admin only). AS-IS.