CVE-2016-7479
In all versions of PHP 7, during the unserialization process, resizing the 'properties' hash table of a serialized object may lead to use-after-free. A remote attacker may exploit this bug to gain
02 Description
In all versions of PHP 7, during the unserialization process, resizing the 'properties' hash table of a serialized object may lead to use-after-free. A remote attacker may exploit this bug to gain
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
- 41.67% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 98.6% 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
- 2017-01-12 00:00Z9 YR AGO
- Last updated
- 2024-08-06 01:57Z2 YR AGO
- Reserved
- 2016-09-09
- Assigning CNA
- checkpoint
- 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
- 8d91471c7548bd88c178414e273e9863ef65b0d8c0a4438280353be30cefeebf
05 Affected products
06 References
- blog.checkpoint.comhttp://blog.checkpoint.com/wp-content/uploads/2016/12/PHP_Technical_Report.pdf
- www.youtube.comhttps://www.youtube.com/watch?v=LDcaPstAuPk
- bugs.php.nethttps://bugs.php.net/bug.php?id=73092
- access.redhat.comRHSA-2018:1296https://access.redhat.com/errata/RHSA-2018:1296
- security.netapp.comhttps://security.netapp.com/advisory/ntap-20180112-0001/
- www.securityfocus.com95151http://www.securityfocus.com/bid/95151
- www.securitytracker.com1037659http://www.securitytracker.com/id/1037659
- blog.checkpoint.comhttp://blog.checkpoint.com/2016/12/27/check-point-discovers-three-zero-day-vulnerabilities-web-programming-language-php-7
07 Fixed in
Ubuntu 14.04 LTS
- php5 Fixed in 5.5.9+dfsg-1ubuntu4.21
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 16.04 LTS
- php7.0 Fixed in 7.0.15-0ubuntu0.16.04.2
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.