php: post handler potential illegal efree() vulnerability
Published Feb 19, 2020
9.8
CRITICALCVSS 3.1
EPSS 3.12%
Description
Use-after-free vulnerability in the add_post_var function in the Posthandler component in PHP 5.6.x before 5.6.1 might allow remote attackers to execute arbitrary code by leveraging a third-party filter extension that accesses a certain ksep value.
Affected products
-
- Version 5.6.x before 5.6.1StatusaffectedConstraints-
- Version
No data.
OpenShift Enterprise 1
php
Not affected
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
| Product | Package | State | Advisory |
|---|---|---|---|
| OpenShift Enterprise 1 | php | Not affected | n/a |
| 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 |
No package ranges for this CVE.
Remediation
Red Hat statement
Not vulnerable. This issue did not affect the versions of PHP as shipped with Red Hat Enterprise Linux 5, 6, and 7, and Red Hat Software Collections 1.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
No CVSS v3.0 score for this CVE.
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 | 3.12% (0.03121) | 87.39th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.12% (0.03121) | 86.11th | v5 (v2026.06.15) |
| Mar 30, 2025 | 1.95% (0.01951) | 81.83th | v4 (v2025.03.14) |
| Mar 29, 2025 | 10.63% (0.10625) | 88.75th | v4 (v2025.03.14) |
| Mar 17, 2025 | 1.95% (0.01951) | 82.25th | v4 (v2025.03.14) |
| Dec 12, 2024 | 1.17% (0.01171) | 85.64th | v3 (v2023.03.01) |
| May 9, 2024 | 1.17% (0.01171) | 84.90th | v3 (v2023.03.01) |
| Apr 22, 2023 | 1.17% (0.01171) | 82.90th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.97% (0.00975) | 81.06th | v3 (v2023.03.01) |
| Mar 6, 2023 | 5.63% (0.05634) | 90.24th | v2 (v2022.01.01) |
| Apr 1, 2022 | 5.63% (0.05634) | 89.29th | v2 (v2022.01.01) |
| Feb 4, 2022 | 5.63% (0.05634) | 76.84th | v2 (v2022.01.01) |
References (6)
- http://php.net/ChangeLog-5.php x_refsource_MISCRelease NotesVendor Advisory
- https://access.redhat.com/security/cve/CVE-2014-3622 Vendor Advisory
- https://bugs.php.net/bug.php?id=68088 x_refsource_MISCExploitVendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1151423 x_refsource_MISCIssue TrackingPatchThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2014-3622
- https://www.cve.org/CVERecord?id=CVE-2014-3622
| Link | Providers | Tags |
|---|---|---|
| http://php.net/ChangeLog-5.php | x_refsource_MISCRelease NotesVendor Advisory | |
| https://access.redhat.com/security/cve/CVE-2014-3622 | Vendor Advisory | |
| https://bugs.php.net/bug.php?id=68088 | x_refsource_MISCExploitVendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1151423 | x_refsource_MISCIssue TrackingPatchThird Party Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2014-3622 | ||
| https://www.cve.org/CVERecord?id=CVE-2014-3622 |
Change history (0)
No recorded changes yet.