php: Use-after-free vulnerability when resizing the 'properties' hash table of a serialized object
Published Jan 12, 2017
9.8
CRITICALCVSS 3.0
EPSS 41.67%
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 arbitrary code execution.
Affected products
- Vendor n/a Product PHP 7.x Defaultn/a
- Version PHP 7.xStatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| n/a | PHP 7.x | n/a |
|
- 7.0.0
- 7.0.1
- 7.0.2
- 7.0.3
- 7.0.4
- 7.0.5
- 7.0.6
- 7.0.7
- 7.0.8
- 7.0.9
- 7.0.10
- 7.0.11
- 7.0.12
- 7.0.14
- 7.1.0
No data.
Red Hat Software Collections for Red Hat Enterprise Linux 6
rh-php70-php-0:7.0.27-1.el6
Fixed · RHSA-2018:1296
Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUS
rh-php70-php-0:7.0.27-1.el6
Fixed · RHSA-2018:1296
Red Hat Software Collections for Red Hat Enterprise Linux 7
rh-php70-php-0:7.0.27-1.el7
Fixed · RHSA-2018:1296
Red Hat Software Collections for Red Hat Enterprise Linux 7.3 EUS
rh-php70-php-0:7.0.27-1.el7
Fixed · RHSA-2018:1296
Red Hat Software Collections for Red Hat Enterprise Linux 7.4 EUS
rh-php70-php-0:7.0.27-1.el7
Fixed · RHSA-2018:1296
Red Hat Software Collections for Red Hat Enterprise Linux 7.5 EUS
rh-php70-php-0:7.0.27-1.el7
Fixed · RHSA-2018:1296
Red Hat Enterprise Linux 5
php
Will not fix
Red Hat Enterprise Linux 5
php53
Will not fix
Red Hat Enterprise Linux 6
php
Will not fix
Red Hat Enterprise Linux 7
php
Will not fix
Red Hat OpenShift Enterprise 2
php
Will not fix
Red Hat Software Collections
rh-php56-php
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Software Collections for Red Hat Enterprise Linux 6 | rh-php70-php-0:7.0.27-1.el6 | Fixed | RHSA-2018:1296 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUS | rh-php70-php-0:7.0.27-1.el6 | Fixed | RHSA-2018:1296 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7 | rh-php70-php-0:7.0.27-1.el7 | Fixed | RHSA-2018:1296 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7.3 EUS | rh-php70-php-0:7.0.27-1.el7 | Fixed | RHSA-2018:1296 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7.4 EUS | rh-php70-php-0:7.0.27-1.el7 | Fixed | RHSA-2018:1296 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7.5 EUS | rh-php70-php-0:7.0.27-1.el7 | Fixed | RHSA-2018:1296 |
| Red Hat Enterprise Linux 5 | php | Will not fix | n/a |
| Red Hat Enterprise Linux 5 | php53 | Will not fix | n/a |
| Red Hat Enterprise Linux 6 | php | Will not fix | n/a |
| Red Hat Enterprise Linux 7 | php | Will not fix | n/a |
| Red Hat OpenShift Enterprise 2 | php | Will not fix | n/a |
| Red Hat Software Collections | rh-php56-php | Will not fix | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
1 other source (Red Hat) ▾
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
AV:N/AC:L/Au:N/C:P/I:P/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (37 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 41.67% (0.41674) | 98.64th | v5 (v2026.06.15) |
| Sep 22, 2026 | 41.94% (0.41943) | 98.63th | v5 (v2026.06.15) |
| Sep 21, 2026 | 36.37% (0.36374) | 98.46th | v5 (v2026.06.15) |
| Sep 6, 2026 | 41.94% (0.41943) | 98.60th | v5 (v2026.06.15) |
| Sep 5, 2026 | 36.37% (0.36374) | 98.43th | v5 (v2026.06.15) |
| Aug 30, 2026 | 41.94% (0.41943) | 98.59th | v5 (v2026.06.15) |
| Aug 28, 2026 | 36.37% (0.36374) | 98.42th | v5 (v2026.06.15) |
| Aug 24, 2026 | 41.94% (0.41943) | 98.58th | v5 (v2026.06.15) |
| Aug 23, 2026 | 36.37% (0.36374) | 98.41th | v5 (v2026.06.15) |
| Jun 15, 2026 | 41.67% (0.41674) | 98.50th | v5 (v2026.06.15) |
| Jun 7, 2026 | 14.59% (0.14590) | 94.61th | v4 (v2025.03.14) |
| May 13, 2026 | 21.63% (0.21629) | 95.78th | v4 (v2025.03.14) |
| Jan 18, 2026 | 20.59% (0.20593) | 95.39th | v4 (v2025.03.14) |
| Dec 28, 2025 | 25.18% (0.25180) | 96.00th | v4 (v2025.03.14) |
| Dec 27, 2025 | 30.26% (0.30265) | 96.55th | v4 (v2025.03.14) |
| Dec 19, 2025 | 25.18% (0.25180) | 95.99th | v4 (v2025.03.14) |
| Dec 18, 2025 | 28.43% (0.28427) | 96.34th | v4 (v2025.03.14) |
| Nov 1, 2025 | 18.86% (0.18858) | 95.07th | v4 (v2025.03.14) |
| Oct 30, 2025 | 20.25% (0.20250) | 95.26th | v4 (v2025.03.14) |
| Oct 28, 2025 | 18.86% (0.18858) | 95.01th | v4 (v2025.03.14) |
| Oct 27, 2025 | 23.15% (0.23150) | 95.70th | v4 (v2025.03.14) |
| Oct 1, 2025 | 18.86% (0.18858) | 95.10th | v4 (v2025.03.14) |
| Sep 15, 2025 | 23.15% (0.23150) | 95.72th | v4 (v2025.03.14) |
| Aug 28, 2025 | 29.10% (0.29098) | 96.41th | v4 (v2025.03.14) |
| Aug 23, 2025 | 25.81% (0.25808) | 96.04th | v4 (v2025.03.14) |
| Aug 6, 2025 | 29.10% (0.29098) | 96.38th | v4 (v2025.03.14) |
| Jul 30, 2025 | 3.08% (0.03085) | 86.27th | v4 (v2025.03.14) |
| Mar 30, 2025 | 1.63% (0.01626) | 80.18th | v4 (v2025.03.14) |
| Mar 29, 2025 | 8.38% (0.08378) | 86.91th | v4 (v2025.03.14) |
| Mar 17, 2025 | 1.44% (0.01437) | 79.35th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.97% (0.00970) | 84.02th | v3 (v2023.03.01) |
| Apr 2, 2024 | 0.97% (0.00970) | 83.03th | v3 (v2023.03.01) |
| Mar 9, 2023 | 0.97% (0.00970) | 81.03th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.37% (0.01370) | 84.18th | v3 (v2023.03.01) |
| Mar 6, 2023 | 7.34% (0.07343) | 92.53th | v2 (v2022.01.01) |
| Apr 1, 2022 | 7.34% (0.07343) | 91.80th | v2 (v2022.01.01) |
| Feb 4, 2022 | 7.34% (0.07343) | 80.57th | v2 (v2022.01.01) |
References (13)
- http://blog.checkpoint.com/2016/12/27/check-point-discovers-three-zero-day-vulnerabilities-web-programming-language-php-7 x_refsource_MISCThird Party Advisory
- http://blog.checkpoint.com/wp-content/uploads/2016/12/PHP_Technical_Report.pdf x_refsource_MISCExploitTechnical DescriptionThird Party Advisory
- http://www.securityfocus.com/bid/95151 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1037659 vdb-entryx_refsource_SECTRACK
- https://access.redhat.com/errata/RHSA-2018:1296 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/security/cve/CVE-2016-7479 Vendor Advisory
- https://blog.checkpoint.com/wp-content/uploads/2016/12/PHP_Technical_Report.pdf
- https://bugs.php.net/bug.php?id=73092 x_refsource_MISCIssue TrackingPermissions Required
- https://bugzilla.redhat.com/show_bug.cgi?id=1412686 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2016-7479
- https://security.netapp.com/advisory/ntap-20180112-0001/ x_refsource_CONFIRM
- https://www.cve.org/CVERecord?id=CVE-2016-7479
- https://www.youtube.com/watch?v=LDcaPstAuPk x_refsource_MISCTechnical Description
Change history (0)
No recorded changes yet.