php: memory allocator fails to realloc small block to large one
Published Sep 12, 2016
8.1
HIGHCVSS 3.0
EPSS 4.05%
Description
Zend/zend_alloc.c in PHP 7.x before 7.0.10, when open_basedir is enabled, mishandles huge realloc operations, which allows remote attackers to cause a denial of service (integer overflow) or possibly have unspecified other impact via a long pathname.
Affected products
No data.
No data.
Red Hat Enterprise Linux 5
php
Not affected
Red Hat Enterprise Linux 5
php53
Not affected
Red Hat Enterprise Linux 6
php
Not affected
Red Hat Enterprise Linux 7
php
Not affected
Red Hat OpenShift Enterprise 2
php
Not affected
Red Hat Software Collections
php54-php
Not affected
Red Hat Software Collections
php55-php
Not affected
Red Hat Software Collections
rh-php56-php
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | php | Not affected | n/a |
| Red Hat Enterprise Linux 5 | php53 | Not affected | n/a |
| Red Hat Enterprise Linux 6 | php | Not affected | n/a |
| Red Hat Enterprise Linux 7 | php | Not affected | n/a |
| Red Hat OpenShift Enterprise 2 | php | Not affected | n/a |
| Red Hat Software Collections | php54-php | Not affected | n/a |
| Red Hat Software Collections | php55-php | Not affected | n/a |
| Red Hat Software Collections | rh-php56-php | Not affected | 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:H/PR:N/UI:N/S:U/C:H/I:H/A:H
1 other source (Red Hat) ▾
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
AV:N/AC:M/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 (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 4.05% (0.04052) | 90.33th | v5 (v2026.06.15) |
| Jun 15, 2026 | 4.05% (0.04052) | 89.29th | v5 (v2026.06.15) |
| Mar 30, 2025 | 0.36% (0.00364) | 55.52th | v4 (v2025.03.14) |
| Mar 29, 2025 | 1.63% (0.01632) | 70.39th | v4 (v2025.03.14) |
| Mar 17, 2025 | 0.36% (0.00364) | 56.31th | v4 (v2025.03.14) |
| Dec 12, 2024 | 1.20% (0.01195) | 85.78th | v3 (v2023.03.01) |
| Apr 17, 2024 | 1.20% (0.01195) | 84.95th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.20% (0.01195) | 82.95th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.32% (0.01319) | 71.27th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.32% (0.01319) | 71.23th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.32% (0.01319) | 69.22th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.32% (0.01319) | 44.98th | v2 (v2022.01.01) |
References (10)
- http://openwall.com/lists/oss-security/2016/09/02/9 mailing-listx_refsource_MLISTMailing List
- http://www.php.net/ChangeLog-7.php x_refsource_CONFIRMRelease Notes
- http://www.securityfocus.com/bid/92765 vdb-entryx_refsource_BID
- https://access.redhat.com/security/cve/CVE-2016-7133 Vendor Advisory
- https://bugs.php.net/bug.php?id=72742 x_refsource_CONFIRMExploitIssue Tracking
- https://bugzilla.redhat.com/show_bug.cgi?id=1374712 Issue Tracking
- https://github.com/php/php-src/commit/c2a13ced4272f2e65d2773e2ea6ca11c1ce4a911?w=1 x_refsource_CONFIRMIssue TrackingPatch
- https://nvd.nist.gov/vuln/detail/CVE-2016-7133
- https://security.gentoo.org/glsa/201611-22 vendor-advisoryx_refsource_GENTOO
- https://www.cve.org/CVERecord?id=CVE-2016-7133
| Link | Providers | Tags |
|---|---|---|
| http://openwall.com/lists/oss-security/2016/09/02/9 | mailing-listx_refsource_MLISTMailing List | |
| http://www.php.net/ChangeLog-7.php | x_refsource_CONFIRMRelease Notes | |
| http://www.securityfocus.com/bid/92765 | vdb-entryx_refsource_BID | |
| https://access.redhat.com/security/cve/CVE-2016-7133 | Vendor Advisory | |
| https://bugs.php.net/bug.php?id=72742 | x_refsource_CONFIRMExploitIssue Tracking | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1374712 | Issue Tracking | |
| https://github.com/php/php-src/commit/c2a13ced4272f2e65d2773e2ea6ca11c1ce4a911?w=1 | x_refsource_CONFIRMIssue TrackingPatch | |
| https://nvd.nist.gov/vuln/detail/CVE-2016-7133 | ||
| https://security.gentoo.org/glsa/201611-22 | vendor-advisoryx_refsource_GENTOO | |
| https://www.cve.org/CVERecord?id=CVE-2016-7133 |
Change history (0)
No recorded changes yet.