CVE-2017-12932

Name: CVE-2017-12932
Creator: NVD / NIST
Published: 2017-08-18T03:29:00.183+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 7.42%

Last modified Jun 17, 2026

CVE-2017-12932 is a vulnerability of currently unknown severity. ext/standard/var_unserializer.re in PHP 7.0.x through 7.0.22 and 7.1.x through 7.1.8 is prone to a heap use after free while unserializing untrusted data, related to improper use of the hash API for key deletion in a situation with an invalid array size. Exploitation of this issue can have an unspecified impact on the integrity of PHP.. EPSS estimates a 7.42% chance of exploitation in the next 30 days.

Description

ext/standard/var_unserializer.re in PHP 7.0.x through 7.0.22 and 7.1.x through 7.1.8 is prone to a heap use after free while unserializing untrusted data, related to improper use of the hash API for key deletion in a situation with an invalid array size. Exploitation of this issue can have an unspecified impact on the integrity of PHP.

Metrics

EPSS Probability

7.42%

93.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-416

Affected Software

Vendor	Product	Versions
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	7.0.21
Php	Php	7.0.22
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
Php	Php	7.1.7
Php	Php	7.1.8

References

http://php.net/ChangeLog-7.phpRelease Notes, Vendor Advisory
http://www.securityfocus.com/bid/100427Third Party Advisory, VDB Entry
https://access.redhat.com/errata/RHSA-2018:1296
https://access.redhat.com/errata/RHSA-2019:2519
https://bugs.php.net/bug.php?id=74103Issue Tracking, Vendor Advisory
https://github.com/php/php-src/commit/1a23ebc1fff59bf480ca92963b36eba5c1b904c4Patch, Third Party Advisory
https://security.gentoo.org/glsa/201709-21
https://security.netapp.com/advisory/ntap-20180112-0001/
https://www.debian.org/security/2018/dsa-4080
http://php.net/ChangeLog-7.phpRelease Notes, Vendor Advisory
http://www.securityfocus.com/bid/100427Third Party Advisory, VDB Entry
https://access.redhat.com/errata/RHSA-2018:1296
https://access.redhat.com/errata/RHSA-2019:2519
https://bugs.php.net/bug.php?id=74103Issue Tracking, Vendor Advisory
https://github.com/php/php-src/commit/1a23ebc1fff59bf480ca92963b36eba5c1b904c4Patch, Third Party Advisory
https://security.gentoo.org/glsa/201709-21
https://security.netapp.com/advisory/ntap-20180112-0001/
https://www.debian.org/security/2018/dsa-4080

Timeline

Published: Aug 18, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-12932?

How severe is CVE-2017-12932?

Severity scoring for CVE-2017-12932 is pending analysis. The EPSS model estimates a 7.42% probability of exploitation in the next 30 days.

How do I fix CVE-2017-12932?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2017-12932?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST