php: multipart/form-data request parsing CPU usage DoS
Published Jun 9, 2015
5.0
MEDIUMCVSS 2.0
EPSS 49.89%
Description
Algorithmic complexity vulnerability in the multipart_buffer_headers function in main/rfc1867.c in PHP before 5.4.41, 5.5.x before 5.5.25, and 5.6.x before 5.6.9 allows remote attackers to cause a denial of service (CPU consumption) via crafted form data that triggers an improper order-of-growth outcome.
Affected products
No data.
Configuration 1
- 6.0
- 7.0
Configuration 3
- ≤ 5.4.40
- 5.4.39
- 5.5.0
- 5.5.0
- 5.5.0
- 5.5.0
- 5.5.0
- 5.5.0
- 5.5.0
- 5.5.0
- 5.5.0
- 5.5.0
- 5.5.0
- 5.5.0
- 5.5.0
- 5.5.1
- 5.5.2
- 5.5.3
- 5.5.4
- 5.5.5
- 5.5.6
- 5.5.7
- 5.5.8
- 5.5.9
- 5.5.10
- 5.5.11
- 5.5.12
- 5.5.13
- 5.5.14
- 5.5.18
- 5.5.19
- 5.5.20
- 5.5.21
- 5.5.22
- 5.5.23
- 5.5.24
- 5.6.0
- 5.6.0
- 5.6.0
- 5.6.0
- 5.6.0
- 5.6.0
- 5.6.0
- 5.6.0
- 5.6.0
- 5.6.2
- 5.6.3
- 5.6.4
- 5.6.5
- 5.6.6
- 5.6.7
- 5.6.8
Configuration 4
- ≤ 7.5.3.1
Configuration 6
- 7.0
- 7.0
- 7.1
- 7.0
- 7.1
- 7.0
No data.
Red Hat Enterprise Linux 6
php-0:5.3.3-46.el6_6
Fixed · RHSA-2015:1218
Red Hat Enterprise Linux 7
php-0:5.4.16-36.ael7b_1
Fixed · RHSA-2015:1135
Red Hat Software Collections for Red Hat Enterprise Linux 6
php54-php-0:5.4.40-3.el6
Fixed · RHSA-2015:1219
Red Hat Software Collections for Red Hat Enterprise Linux 6
php55-php-0:5.5.21-4.el6
Fixed · RHSA-2015:1186
Red Hat Software Collections for Red Hat Enterprise Linux 6
rh-php56-php-0:5.6.5-7.el6
Fixed · RHSA-2015:1187
Red Hat Software Collections for Red Hat Enterprise Linux 6.5 EUS
php54-php-0:5.4.40-3.el6
Fixed · RHSA-2015:1219
Red Hat Software Collections for Red Hat Enterprise Linux 6.5 EUS
php55-php-0:5.5.21-4.el6
Fixed · RHSA-2015:1186
Red Hat Software Collections for Red Hat Enterprise Linux 6.5 EUS
rh-php56-php-0:5.6.5-7.el6
Fixed · RHSA-2015:1187
Red Hat Software Collections for Red Hat Enterprise Linux 6.6 EUS
php54-php-0:5.4.40-3.el6
Fixed · RHSA-2015:1219
Red Hat Software Collections for Red Hat Enterprise Linux 6.6 EUS
php55-php-0:5.5.21-4.el6
Fixed · RHSA-2015:1186
Red Hat Software Collections for Red Hat Enterprise Linux 6.6 EUS
rh-php56-php-0:5.6.5-7.el6
Fixed · RHSA-2015:1187
Red Hat Software Collections for Red Hat Enterprise Linux 7
php54-php-0:5.4.40-3.el7
Fixed · RHSA-2015:1219
Red Hat Software Collections for Red Hat Enterprise Linux 7
php55-php-0:5.5.21-4.el7
Fixed · RHSA-2015:1186
Red Hat Software Collections for Red Hat Enterprise Linux 7
rh-php56-php-0:5.6.5-7.el7
Fixed · RHSA-2015:1187
Red Hat Software Collections for Red Hat Enterprise Linux 7.1 EUS
php54-php-0:5.4.40-3.el7
Fixed · RHSA-2015:1219
Red Hat Software Collections for Red Hat Enterprise Linux 7.1 EUS
php55-php-0:5.5.21-4.el7
Fixed · RHSA-2015:1186
Red Hat Software Collections for Red Hat Enterprise Linux 7.1 EUS
rh-php56-php-0:5.6.5-7.el7
Fixed · RHSA-2015:1187
Red Hat Enterprise Linux 5
php
Will not fix
Red Hat Enterprise Linux 5
php53
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | php-0:5.3.3-46.el6_6 | Fixed | RHSA-2015:1218 |
| Red Hat Enterprise Linux 7 | php-0:5.4.16-36.ael7b_1 | Fixed | RHSA-2015:1135 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6 | php54-php-0:5.4.40-3.el6 | Fixed | RHSA-2015:1219 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6 | php55-php-0:5.5.21-4.el6 | Fixed | RHSA-2015:1186 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6 | rh-php56-php-0:5.6.5-7.el6 | Fixed | RHSA-2015:1187 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6.5 EUS | php54-php-0:5.4.40-3.el6 | Fixed | RHSA-2015:1219 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6.5 EUS | php55-php-0:5.5.21-4.el6 | Fixed | RHSA-2015:1186 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6.5 EUS | rh-php56-php-0:5.6.5-7.el6 | Fixed | RHSA-2015:1187 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6.6 EUS | php54-php-0:5.4.40-3.el6 | Fixed | RHSA-2015:1219 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6.6 EUS | php55-php-0:5.5.21-4.el6 | Fixed | RHSA-2015:1186 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6.6 EUS | rh-php56-php-0:5.6.5-7.el6 | Fixed | RHSA-2015:1187 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7 | php54-php-0:5.4.40-3.el7 | Fixed | RHSA-2015:1219 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7 | php55-php-0:5.5.21-4.el7 | Fixed | RHSA-2015:1186 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7 | rh-php56-php-0:5.6.5-7.el7 | Fixed | RHSA-2015:1187 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7.1 EUS | php54-php-0:5.4.40-3.el7 | Fixed | RHSA-2015:1219 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7.1 EUS | php55-php-0:5.5.21-4.el7 | Fixed | RHSA-2015:1186 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7.1 EUS | rh-php56-php-0:5.6.5-7.el7 | Fixed | RHSA-2015:1187 |
| Red Hat Enterprise Linux 5 | php | Will not fix | n/a |
| Red Hat Enterprise Linux 5 | php53 | 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.
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:N/I:N/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 (55 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 49.89% (0.49885) | 98.87th | v5 (v2026.06.15) |
| Jun 15, 2026 | 50.13% (0.50129) | 98.76th | v5 (v2026.06.15) |
| May 24, 2026 | 69.61% (0.69613) | 98.68th | v4 (v2025.03.14) |
| Mar 4, 2026 | 75.52% (0.75519) | 98.87th | v4 (v2025.03.14) |
| Mar 1, 2026 | 66.29% (0.66289) | 98.50th | v4 (v2025.03.14) |
| Feb 4, 2026 | 75.52% (0.75519) | 98.86th | v4 (v2025.03.14) |
| Feb 1, 2026 | 66.29% (0.66289) | 98.49th | v4 (v2025.03.14) |
| Jan 4, 2026 | 75.52% (0.75519) | 98.85th | v4 (v2025.03.14) |
| Jan 1, 2026 | 66.29% (0.66289) | 98.47th | v4 (v2025.03.14) |
| Dec 28, 2025 | 75.52% (0.75519) | 98.85th | v4 (v2025.03.14) |
| Dec 27, 2025 | 73.84% (0.73843) | 98.78th | v4 (v2025.03.14) |
| Dec 4, 2025 | 75.52% (0.75519) | 98.84th | v4 (v2025.03.14) |
| Dec 1, 2025 | 66.29% (0.66289) | 98.46th | v4 (v2025.03.14) |
| Nov 4, 2025 | 75.52% (0.75519) | 98.83th | v4 (v2025.03.14) |
| Nov 1, 2025 | 66.29% (0.66289) | 98.46th | v4 (v2025.03.14) |
| Oct 28, 2025 | 75.52% (0.75519) | 98.83th | v4 (v2025.03.14) |
| Oct 27, 2025 | 73.84% (0.73843) | 98.76th | v4 (v2025.03.14) |
| Oct 4, 2025 | 75.52% (0.75519) | 98.85th | v4 (v2025.03.14) |
| Oct 1, 2025 | 66.29% (0.66289) | 98.48th | v4 (v2025.03.14) |
| Sep 11, 2025 | 73.84% (0.73843) | 98.78th | v4 (v2025.03.14) |
| Sep 4, 2025 | 66.29% (0.66290) | 98.48th | v4 (v2025.03.14) |
| Sep 1, 2025 | 59.90% (0.59897) | 98.21th | v4 (v2025.03.14) |
| Aug 20, 2025 | 66.29% (0.66290) | 98.46th | v4 (v2025.03.14) |
| Jul 30, 2025 | 67.87% (0.67869) | 98.50th | v4 (v2025.03.14) |
| Jul 4, 2025 | 69.92% (0.69918) | 98.57th | v4 (v2025.03.14) |
| Jul 1, 2025 | 64.64% (0.64643) | 98.36th | v4 (v2025.03.14) |
| Jun 9, 2025 | 68.43% (0.68426) | 98.49th | v4 (v2025.03.14) |
| Jun 6, 2025 | 75.52% (0.75519) | 98.81th | v4 (v2025.03.14) |
| Jun 1, 2025 | 66.29% (0.66289) | 98.42th | v4 (v2025.03.14) |
| May 31, 2025 | 75.52% (0.75519) | 98.82th | v4 (v2025.03.14) |
| May 30, 2025 | 66.29% (0.66289) | 98.40th | v4 (v2025.03.14) |
| May 29, 2025 | 75.52% (0.75519) | 98.82th | v4 (v2025.03.14) |
| May 27, 2025 | 66.29% (0.66289) | 98.40th | v4 (v2025.03.14) |
| May 20, 2025 | 75.52% (0.75519) | 98.82th | v4 (v2025.03.14) |
| May 6, 2025 | 72.74% (0.72740) | 98.68th | v4 (v2025.03.14) |
| May 4, 2025 | 75.64% (0.75638) | 98.82th | v4 (v2025.03.14) |
| May 1, 2025 | 66.40% (0.66399) | 98.42th | v4 (v2025.03.14) |
| Apr 18, 2025 | 75.64% (0.75638) | 98.81th | v4 (v2025.03.14) |
| Apr 16, 2025 | 66.40% (0.66399) | 98.39th | v4 (v2025.03.14) |
| Apr 15, 2025 | 75.64% (0.75638) | 98.81th | v4 (v2025.03.14) |
| Apr 14, 2025 | 66.40% (0.66399) | 98.41th | v4 (v2025.03.14) |
| Mar 21, 2025 | 75.64% (0.75638) | 98.87th | v4 (v2025.03.14) |
| Mar 20, 2025 | 66.40% (0.66399) | 98.44th | v4 (v2025.03.14) |
| Mar 17, 2025 | 75.64% (0.75638) | 98.83th | v4 (v2025.03.14) |
| Jan 19, 2025 | 33.25% (0.33251) | 97.09th | v3 (v2023.03.01) |
| Dec 17, 2024 | 35.87% (0.35868) | 97.16th | v3 (v2023.03.01) |
| Dec 3, 2024 | 68.23% (0.68229) | 98.08th | v3 (v2023.03.01) |
| Oct 13, 2023 | 71.28% (0.71276) | 97.68th | v3 (v2023.03.01) |
| Sep 9, 2023 | 75.75% (0.75755) | 97.77th | v3 (v2023.03.01) |
| May 3, 2023 | 71.94% (0.71935) | 97.54th | v3 (v2023.03.01) |
| Apr 1, 2023 | 74.28% (0.74277) | 97.58th | v3 (v2023.03.01) |
| Mar 7, 2023 | 75.32% (0.75318) | 97.57th | v3 (v2023.03.01) |
| Mar 6, 2023 | 4.36% (0.04358) | 88.02th | v2 (v2022.01.01) |
| Apr 1, 2022 | 4.36% (0.04358) | 86.83th | v2 (v2022.01.01) |
| Feb 4, 2022 | 4.36% (0.04358) | 70.59th | v2 (v2022.01.01) |
References (23)
- http://lists.apple.com/archives/security-announce/2015/Aug/msg00001.html vendor-advisoryx_refsource_APPLEMailing ListThird Party Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2015-May/158616.html vendor-advisoryx_refsource_FEDORA
- http://lists.fedoraproject.org/pipermail/package-announce/2015-May/158915.html vendor-advisoryx_refsource_FEDORA
- http://lists.fedoraproject.org/pipermail/package-announce/2015-May/159031.html vendor-advisoryx_refsource_FEDORA
- http://lists.opensuse.org/opensuse-updates/2015-06/msg00002.html vendor-advisoryx_refsource_SUSE
- http://php.net/ChangeLog-5.php x_refsource_CONFIRMPatch
- http://rhn.redhat.com/errata/RHSA-2015-1135.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2015-1186.html vendor-advisoryx_refsource_REDHAT
- http://rhn.redhat.com/errata/RHSA-2015-1187.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2015-1218.html vendor-advisoryx_refsource_REDHAT
- http://rhn.redhat.com/errata/RHSA-2015-1219.html vendor-advisoryx_refsource_REDHAT
- http://www.debian.org/security/2015/dsa-3280 vendor-advisoryx_refsource_DEBIAN
- http://www.oracle.com/technetwork/topics/security/bulletinjul2015-2511963.html x_refsource_CONFIRMThird Party Advisory
- http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html x_refsource_CONFIRMThird Party Advisory
- http://www.securityfocus.com/bid/74903 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id/1032432 vdb-entryx_refsource_SECTRACK
- https://access.redhat.com/security/cve/CVE-2015-4024 Vendor Advisory
- https://bugs.php.net/bug.php?id=69364 x_refsource_CONFIRMExploitPatch
- https://bugzilla.redhat.com/show_bug.cgi?id=1222485 Issue Tracking
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05045763 x_refsource_CONFIRMThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2015-4024
- https://support.apple.com/kb/HT205031 x_refsource_CONFIRM
- https://www.cve.org/CVERecord?id=CVE-2015-4024
Change history (0)
No recorded changes yet.