php: Dumpable FPM child processes allow bypassing opcache access controls
Published Apr 29, 2018
4.7
MEDIUMCVSS 3.0
EPSS 0.80%
Description
An issue was discovered in PHP before 5.6.35, 7.0.x before 7.0.29, 7.1.x before 7.1.16, and 7.2.x before 7.2.4. Dumpable FPM child processes allow bypassing opcache access controls because fpm_unix.c makes a PR_SET_DUMPABLE prctl call, allowing one user (in a multiuser environment) to obtain sensitive information from the process memory of a second user's PHP applications by running gcore on the PID of the PHP-FPM worker process.
Affected products
No data.
Configuration 1
Configuration 2
- 12.04
- 14.04
- 16.04
- 17.10
- 18.04
Configuration 3
- 7.0
- 8.0
- 9.0
Configuration 4
- n/a
No data.
Red Hat Software Collections for Red Hat Enterprise Linux 7
rh-php71-php-0:7.1.30-1.el7
Fixed · RHSA-2019:2519
Red Hat Software Collections for Red Hat Enterprise Linux 7.4 EUS
rh-php71-php-0:7.1.30-1.el7
Fixed · RHSA-2019:2519
Red Hat Software Collections for Red Hat Enterprise Linux 7.5 EUS
rh-php71-php-0:7.1.30-1.el7
Fixed · RHSA-2019:2519
Red Hat Software Collections for Red Hat Enterprise Linux 7.6 EUS
rh-php71-php-0:7.1.30-1.el7
Fixed · RHSA-2019:2519
Red Hat Enterprise Linux 5
php
Not affected
Red Hat Enterprise Linux 5
php53
Not affected
Red Hat Enterprise Linux 6
php
Will not fix
Red Hat Enterprise Linux 7
php
Fix deferred
Red Hat Enterprise Linux 8
php
Not affected
Red Hat Software Collections
rh-php56-php
Will not fix
Red Hat Software Collections
rh-php70-php
Fix deferred
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Software Collections for Red Hat Enterprise Linux 7 | rh-php71-php-0:7.1.30-1.el7 | Fixed | RHSA-2019:2519 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7.4 EUS | rh-php71-php-0:7.1.30-1.el7 | Fixed | RHSA-2019:2519 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7.5 EUS | rh-php71-php-0:7.1.30-1.el7 | Fixed | RHSA-2019:2519 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7.6 EUS | rh-php71-php-0:7.1.30-1.el7 | Fixed | RHSA-2019:2519 |
| 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 | Will not fix | n/a |
| Red Hat Enterprise Linux 7 | php | Fix deferred | n/a |
| Red Hat Enterprise Linux 8 | php | Not affected | n/a |
| Red Hat Software Collections | rh-php56-php | Will not fix | n/a |
| Red Hat Software Collections | rh-php70-php | Fix deferred | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
Red Hat Product Security has rated this issue as having a security impact of Low, and a future update may address this flaw.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
1 other source (Red Hat) ▾
CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
AV:L/AC:M/Au:N/C:P/I:N/A:N
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 2, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (15 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 0.80% (0.00801) | 55.06th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.83% (0.00831) | 52.62th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.09% (0.00090) | 23.57th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.07% (0.00067) | 31.41th | v3 (v2023.03.01) |
| Jun 14, 2024 | 0.07% (0.00067) | 29.36th | v3 (v2023.03.01) |
| Apr 23, 2023 | 0.07% (0.00067) | 27.30th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.05% (0.00052) | 18.59th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.55% (0.01547) | 74.98th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.55% (0.01547) | 74.94th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.55% (0.01547) | 72.92th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.55% (0.01547) | 51.82th | v2 (v2022.01.01) |
| Feb 3, 2022 | 2.88% (0.02880) | 63.65th | v1 |
| Jan 6, 2022 | 2.88% (0.02880) | 63.31th | v1 |
| Sep 1, 2021 | 2.88% (0.02880) | 80.71th | v1 |
| Apr 14, 2021 | 2.88% (0.02880) | 0.00th | v1 |
References (17)
- http://php.net/ChangeLog-5.php x_refsource_CONFIRMPatchVendor Advisory
- http://php.net/ChangeLog-7.php x_refsource_CONFIRMPatchVendor Advisory
- http://www.securityfocus.com/bid/104022 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://access.redhat.com/errata/RHSA-2019:2519 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/security/cve/CVE-2018-10545 Vendor Advisory
- https://bugs.php.net/bug.php?id=75605 x_refsource_CONFIRMIssue TrackingPatchVendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1563858 Issue Tracking
- https://lists.debian.org/debian-lts-announce/2018/05/msg00004.html mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/06/msg00005.html mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2018-10545
- https://security.gentoo.org/glsa/201812-01 vendor-advisoryx_refsource_GENTOOThird Party Advisory
- https://security.netapp.com/advisory/ntap-20180607-0003/ x_refsource_CONFIRMThird Party Advisory
- https://usn.ubuntu.com/3646-1/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://usn.ubuntu.com/3646-2/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2018-10545
- https://www.debian.org/security/2018/dsa-4240 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- https://www.tenable.com/security/tns-2018-12 x_refsource_CONFIRMThird Party Advisory
Change history (0)
No recorded changes yet.