CVE-2017-12932
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
02 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
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 7.42% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 94.1% of scored records. A rank, not a probability.
- NVD base score
- 9.8 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Moderate. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2017-08-18 03:00Z9 YR AGO
- Last updated
- 2024-08-05 18:51Z2 YR AGO
- Reserved
- 2017-08-17
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-416Use After FreeVariant
- Data version
- 5.1
- Document digest
- 910597c6ad3113c46203523db3505fea49014f41157b13713f8391122b3df221
05 Affected products
06 References
- www.securityfocus.com100427http://www.securityfocus.com/bid/100427
- access.redhat.comRHSA-2018:1296https://access.redhat.com/errata/RHSA-2018:1296
- github.comhttps://github.com/php/php-src/commit/1a23ebc1fff59bf480ca92963b36eba5c1b904c4
- security.netapp.comhttps://security.netapp.com/advisory/ntap-20180112-0001/
- bugs.php.nethttps://bugs.php.net/bug.php?id=74103
- www.debian.orgDSA-4080https://www.debian.org/security/2018/dsa-4080
- php.nethttp://php.net/ChangeLog-7.php
- security.gentoo.orgGLSA-201709-21https://security.gentoo.org/glsa/201709-21
- access.redhat.comRHSA-2019:2519https://access.redhat.com/errata/RHSA-2019:2519
07 Fixed in
Ubuntu 16.04 LTS
- php7.0 Fixed in 7.0.25-0ubuntu0.16.04.1
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.