php: Cross-site scripting (XSS) flaw in Apache2 component via body of 'Transfer-Encoding: chunked' request
Published Sep 16, 2018
6.1
MEDIUMCVSS 3.0
EPSS 4.10%
Description
The Apache2 component in PHP before 5.6.38, 7.0.x before 7.0.32, 7.1.x before 7.1.22, and 7.2.x before 7.2.10 allows XSS via the body of a "Transfer-Encoding: chunked" request, because the bucket brigade is mishandled in the php_handler function in sapi/apache2handler/sapi_apache2.c.
Affected products
No data.
Configuration 1
Configuration 2
- 8.0
- 9.0
Configuration 3
- 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
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 Enterprise Linux 8
php
Not affected
Red Hat Software Collections
rh-php70-php
Will not fix
Red Hat Software Collections
rh-php72-php
Not affected
| 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 | 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 Enterprise Linux 8 | php | Not affected | n/a |
| Red Hat Software Collections | rh-php70-php | Will not fix | n/a |
| Red Hat Software Collections | rh-php72-php | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue affects the versions of php as shipped with Red Hat Enterprise Linux 5. Red Hat Enterprise Linux 5 is now in Extended Life Phase of the support and maintenance life cycle. This issue is not currently planned to be addressed in future updates. For additional information, refer to the Red Hat Enterprise Linux Life Cycle: https://access.redhat.com/support/policy/updates/errata/. This issue affects the versions of php as shipped with Red Hat Enterprise Linux 6. Red Hat Enterprise Linux 6 is now in Maintenance Support 2 Phase of the support and maintenance life cycle. This has been rated as having a security impact of Moderate, and is not currently planned to be addressed in future updates. For additional information, refer to the Red Hat Enterprise Linux Life Cycle: https://access.redhat.com/support/policy/updates/errata/. This issue affects the versions of php as shipped with Red Hat Enterprise Linux 7. Red Hat Product Security has rated this issue as having a security impact of Moderate. A future update may address this issue. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/.
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:R/S:C/C:L/I:L/A:N
1 other source (Red Hat) ▾
CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N
AV:N/AC:M/Au:N/C:N/I:P/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 1, 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 (65 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 4.10% (0.04103) | 90.44th | v5 (v2026.06.15) |
| Sep 22, 2026 | 4.10% (0.04103) | 90.31th | v5 (v2026.06.15) |
| Sep 21, 2026 | 5.69% (0.05689) | 92.70th | v5 (v2026.06.15) |
| Sep 6, 2026 | 4.10% (0.04103) | 90.08th | v5 (v2026.06.15) |
| Sep 5, 2026 | 5.69% (0.05689) | 92.55th | v5 (v2026.06.15) |
| Aug 30, 2026 | 4.10% (0.04103) | 90.03th | v5 (v2026.06.15) |
| Aug 28, 2026 | 5.69% (0.05689) | 92.50th | v5 (v2026.06.15) |
| Aug 24, 2026 | 4.10% (0.04103) | 89.97th | v5 (v2026.06.15) |
| Aug 23, 2026 | 5.69% (0.05689) | 92.47th | v5 (v2026.06.15) |
| Jun 15, 2026 | 4.10% (0.04103) | 89.42th | v5 (v2026.06.15) |
| May 4, 2026 | 4.44% (0.04436) | 89.09th | v4 (v2025.03.14) |
| Mar 4, 2026 | 8.24% (0.08241) | 92.07th | v4 (v2025.03.14) |
| Mar 1, 2026 | 4.28% (0.04281) | 88.68th | v4 (v2025.03.14) |
| Feb 4, 2026 | 8.24% (0.08241) | 92.01th | v4 (v2025.03.14) |
| Feb 1, 2026 | 4.28% (0.04281) | 88.61th | v4 (v2025.03.14) |
| Jan 4, 2026 | 8.10% (0.08100) | 91.88th | v4 (v2025.03.14) |
| Jan 1, 2026 | 4.20% (0.04204) | 88.45th | v4 (v2025.03.14) |
| Dec 28, 2025 | 8.10% (0.08100) | 91.86th | v4 (v2025.03.14) |
| Dec 27, 2025 | 10.11% (0.10109) | 92.89th | v4 (v2025.03.14) |
| Dec 18, 2025 | 8.24% (0.08241) | 91.92th | v4 (v2025.03.14) |
| Dec 9, 2025 | 9.51% (0.09513) | 92.54th | v4 (v2025.03.14) |
| Dec 4, 2025 | 12.92% (0.12917) | 93.77th | v4 (v2025.03.14) |
| Dec 2, 2025 | 4.98% (0.04985) | 89.34th | v4 (v2025.03.14) |
| Dec 1, 2025 | 18.99% (0.18987) | 95.12th | v4 (v2025.03.14) |
| Nov 21, 2025 | 17.77% (0.17766) | 94.85th | v4 (v2025.03.14) |
| Nov 18, 2025 | 3.82% (0.03815) | 86.98th | v4 (v2025.03.14) |
| Nov 4, 2025 | 17.77% (0.17766) | 94.83th | v4 (v2025.03.14) |
| Nov 1, 2025 | 7.52% (0.07517) | 91.41th | v4 (v2025.03.14) |
| Oct 28, 2025 | 17.77% (0.17766) | 94.82th | v4 (v2025.03.14) |
| Oct 27, 2025 | 9.22% (0.09221) | 92.37th | v4 (v2025.03.14) |
| Oct 4, 2025 | 17.77% (0.17766) | 94.87th | v4 (v2025.03.14) |
| Oct 1, 2025 | 7.52% (0.07517) | 91.47th | v4 (v2025.03.14) |
| Sep 4, 2025 | 9.22% (0.09221) | 92.42th | v4 (v2025.03.14) |
| Sep 1, 2025 | 2.43% (0.02428) | 84.63th | v4 (v2025.03.14) |
| Aug 19, 2025 | 9.22% (0.09221) | 92.37th | v4 (v2025.03.14) |
| Aug 4, 2025 | 14.29% (0.14293) | 94.12th | v4 (v2025.03.14) |
| Aug 1, 2025 | 4.21% (0.04210) | 88.39th | v4 (v2025.03.14) |
| Jul 30, 2025 | 14.29% (0.14293) | 94.11th | v4 (v2025.03.14) |
| Jul 4, 2025 | 25.92% (0.25917) | 96.01th | v4 (v2025.03.14) |
| Jul 1, 2025 | 12.63% (0.12629) | 93.68th | v4 (v2025.03.14) |
| Jun 21, 2025 | 26.27% (0.26265) | 96.02th | v4 (v2025.03.14) |
| Jun 6, 2025 | 24.22% (0.24219) | 95.77th | v4 (v2025.03.14) |
| Jun 4, 2025 | 26.22% (0.26217) | 95.99th | v4 (v2025.03.14) |
| Jun 1, 2025 | 15.14% (0.15141) | 94.27th | v4 (v2025.03.14) |
| May 30, 2025 | 26.22% (0.26217) | 95.99th | v4 (v2025.03.14) |
| May 4, 2025 | 21.88% (0.21875) | 95.39th | v4 (v2025.03.14) |
| May 1, 2025 | 10.78% (0.10777) | 92.95th | v4 (v2025.03.14) |
| Mar 30, 2025 | 21.88% (0.21875) | 95.28th | v4 (v2025.03.14) |
| Mar 29, 2025 | 20.45% (0.20445) | 92.75th | v4 (v2025.03.14) |
| Mar 17, 2025 | 21.88% (0.21875) | 95.30th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.27% (0.00272) | 68.79th | v3 (v2023.03.01) |
| May 5, 2024 | 0.27% (0.00272) | 67.70th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.30% (0.00305) | 68.94th | v3 (v2023.03.01) |
| Feb 7, 2024 | 0.30% (0.00305) | 66.66th | v3 (v2023.03.01) |
| Sep 10, 2023 | 0.43% (0.00433) | 71.44th | v3 (v2023.03.01) |
| Jul 8, 2023 | 0.40% (0.00402) | 70.07th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.61% (0.00615) | 75.45th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.54% (0.01537) | 74.52th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.54% (0.01537) | 74.48th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.54% (0.01537) | 72.41th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.54% (0.01537) | 51.33th | v2 (v2022.01.01) |
| Feb 3, 2022 | 2.27% (0.02273) | 50.89th | v1 |
| Jan 6, 2022 | 2.27% (0.02273) | 50.38th | v1 |
| Sep 1, 2021 | 2.27% (0.02273) | 77.89th | v1 |
| Apr 14, 2021 | 2.27% (0.02273) | 0.00th | v1 |
References (14)
- http://php.net/ChangeLog-5.php x_refsource_MISCRelease Notes
- http://php.net/ChangeLog-7.php x_refsource_MISCRelease Notes
- https://access.redhat.com/errata/RHSA-2019:2519 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/security/cve/CVE-2018-17082 Vendor Advisory
- https://bugs.php.net/bug.php?id=76582 x_refsource_MISCExploitIssue TrackingVendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1629552 Issue Tracking
- https://github.com/php/php-src/commit/23b057742e3cf199612fa8050ae86cae675e214e x_refsource_MISCPatchVendor Advisory
- https://lists.debian.org/debian-lts-announce/2018/09/msg00020.html mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2018-17082
- https://security.gentoo.org/glsa/201812-01 vendor-advisoryx_refsource_GENTOOThird Party Advisory
- https://security.netapp.com/advisory/ntap-20180924-0001/ x_refsource_CONFIRMThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2018-17082
- https://www.debian.org/security/2018/dsa-4353 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- https://www.tenable.com/security/tns-2019-07 x_refsource_CONFIRM
Change history (0)
No recorded changes yet.