CVE-2017-12933
highpriority · track · 41EPSS 0.069 · 94 %ileDEEURUUSEPSS · scored 2026-10-22
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.
remediations
Vendor fix, mitigation, or workaround guidance, as published by each source.
A vendor fix is available.
- Fixedads_tec_psirt
Update firmware to the latest version available. The issues have been resolved with IRF1000 version 1.5.0, IRF2000 version 4.4.0 and IRF3000 version 1.2.0.
- Mitigationads_tec_psirt
It is recommended to disable all user accounts with restricted configuration write permissions if the update to the latest released version cannot be installed immediately.It is further recommended to use best practice password policies.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 7.5–9.8
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (39)
Products and version ranges known to be affected.
advisories (1)
Vendor and ecosystem advisories describing this.
- VDE-2023-009ads-tec: Multiple Vulnerabilities in IRF1000, IRF2000 and IRF30002023-05-08csaf · ads_tec_psirtDE
The affected products integrate the vulnerable libraries in a way so that the vulnerabilities can't be exploited remotely without prior authentication.
also known as (5)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (30)
External citations — patches, advisories, analysis.
- http://php.net/ChangeLog-5.phpcnnvd
- http://php.net/ChangeLog-7.phpcnnvd
- http://www.securityfocus.com/bid/99490cnnvd
- https://access.redhat.com/errata/RHSA-2018:1296cnnvd
- https://bugs.php.net/bug.php?id=74111cnnvd
- https://packetstormsecurity.com/files/153001/Ubuntu-Security-Notice-USN-3566-2.htmlcnnvd
- https://usn.ubuntu.com/3566-1/cnnvd
- https://usn.ubuntu.com/3566-2/cnnvd
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