HIGH
php: Infinite loop in ext/iconv/iconv.c when using stream filter with convert.incov on invalid sequence leads to denial-of-service
Published Apr 29, 2018
7.5
HIGHCVSS 3.0
EPSS 9.96%
Description
An issue was discovered in PHP before 5.6.36, 7.0.x before 7.0.30, 7.1.x before 7.1.17, and 7.2.x before 7.2.5. An infinite loop exists in ext/iconv/iconv.c because the iconv stream filter does not reject invalid multibyte sequences.
Affected products
No data.
Configuration 1
Configuration 2
OR
- 14.04
- 16.04
- 17.10
- 18.04
Configuration 3
OR
- 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
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
| 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 |
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.
7.5 HIGH NVD
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact High
5.0 MEDIUM NVD
AV:N/AC:L/Au:N/C:N/I:N/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
9.96% 0.09958
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
EPSS probability 0.09958
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Table of values (66 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 9.96% (0.09958) | 95.47th | v5 (v2026.06.15) |
| Sep 22, 2026 | 10.23% (0.10228) | 95.46th | v5 (v2026.06.15) |
| Sep 21, 2026 | 9.07% (0.09071) | 95.12th | v5 (v2026.06.15) |
| Sep 6, 2026 | 10.23% (0.10228) | 95.36th | v5 (v2026.06.15) |
| Sep 5, 2026 | 9.07% (0.09071) | 95.01th | v5 (v2026.06.15) |
| Aug 30, 2026 | 10.43% (0.10433) | 95.40th | v5 (v2026.06.15) |
| Aug 28, 2026 | 9.25% (0.09253) | 95.05th | v5 (v2026.06.15) |
| Aug 24, 2026 | 10.43% (0.10433) | 95.38th | v5 (v2026.06.15) |
| Aug 23, 2026 | 9.25% (0.09253) | 95.04th | v5 (v2026.06.15) |
| Jun 15, 2026 | 10.56% (0.10564) | 95.19th | v5 (v2026.06.15) |
| Mar 4, 2026 | 64.86% (0.64864) | 98.43th | v4 (v2025.03.14) |
| Mar 1, 2026 | 39.22% (0.39223) | 97.22th | v4 (v2025.03.14) |
| Feb 25, 2026 | 64.86% (0.64864) | 98.43th | v4 (v2025.03.14) |
| Feb 4, 2026 | 63.49% (0.63489) | 98.35th | v4 (v2025.03.14) |
| Feb 1, 2026 | 37.60% (0.37598) | 97.11th | v4 (v2025.03.14) |
| Jan 16, 2026 | 63.49% (0.63489) | 98.34th | v4 (v2025.03.14) |
| Jan 4, 2026 | 54.71% (0.54713) | 97.94th | v4 (v2025.03.14) |
| Jan 1, 2026 | 27.43% (0.27431) | 96.28th | v4 (v2025.03.14) |
| Dec 28, 2025 | 54.71% (0.54713) | 97.92th | v4 (v2025.03.14) |
| Dec 27, 2025 | 40.84% (0.40836) | 97.25th | v4 (v2025.03.14) |
| Dec 4, 2025 | 54.71% (0.54713) | 97.91th | v4 (v2025.03.14) |
| Dec 1, 2025 | 27.43% (0.27431) | 96.25th | v4 (v2025.03.14) |
| Nov 21, 2025 | 54.71% (0.54713) | 97.91th | v4 (v2025.03.14) |
| Nov 18, 2025 | 35.27% (0.35266) | 96.82th | v4 (v2025.03.14) |
| Nov 4, 2025 | 54.71% (0.54713) | 97.91th | v4 (v2025.03.14) |
| Nov 1, 2025 | 27.43% (0.27431) | 96.22th | v4 (v2025.03.14) |
| Oct 28, 2025 | 54.71% (0.54713) | 97.90th | v4 (v2025.03.14) |
| Oct 27, 2025 | 40.84% (0.40836) | 97.21th | v4 (v2025.03.14) |
| Oct 25, 2025 | 54.71% (0.54713) | 97.90th | v4 (v2025.03.14) |
| Oct 15, 2025 | 63.22% (0.63224) | 98.30th | v4 (v2025.03.14) |
| Oct 4, 2025 | 58.91% (0.58915) | 98.15th | v4 (v2025.03.14) |
| Oct 1, 2025 | 33.57% (0.33572) | 96.81th | v4 (v2025.03.14) |
| Sep 4, 2025 | 47.51% (0.47506) | 97.63th | v4 (v2025.03.14) |
| Sep 1, 2025 | 19.94% (0.19940) | 95.28th | v4 (v2025.03.14) |
| Aug 23, 2025 | 46.92% (0.46916) | 97.59th | v4 (v2025.03.14) |
| Aug 21, 2025 | 65.88% (0.65881) | 98.44th | v4 (v2025.03.14) |
| Aug 4, 2025 | 46.92% (0.46916) | 97.58th | v4 (v2025.03.14) |
| Aug 1, 2025 | 19.53% (0.19527) | 95.20th | v4 (v2025.03.14) |
| Jul 30, 2025 | 46.92% (0.46916) | 97.57th | v4 (v2025.03.14) |
| Jul 4, 2025 | 58.91% (0.58915) | 98.10th | v4 (v2025.03.14) |
| Jul 1, 2025 | 33.57% (0.33572) | 96.76th | v4 (v2025.03.14) |
| Jun 21, 2025 | 58.91% (0.58915) | 98.08th | v4 (v2025.03.14) |
| Jun 6, 2025 | 57.17% (0.57167) | 97.98th | v4 (v2025.03.14) |
| Jun 4, 2025 | 33.40% (0.33401) | 96.69th | v4 (v2025.03.14) |
| Jun 1, 2025 | 15.50% (0.15496) | 94.33th | v4 (v2025.03.14) |
| May 30, 2025 | 33.40% (0.33401) | 96.68th | v4 (v2025.03.14) |
| May 4, 2025 | 21.53% (0.21531) | 95.34th | v4 (v2025.03.14) |
| May 1, 2025 | 15.42% (0.15416) | 94.28th | v4 (v2025.03.14) |
| Mar 30, 2025 | 21.53% (0.21531) | 95.23th | v4 (v2025.03.14) |
| Mar 29, 2025 | 26.32% (0.26322) | 94.05th | v4 (v2025.03.14) |
| Mar 28, 2025 | 21.79% (0.21794) | 95.27th | v4 (v2025.03.14) |
| Mar 27, 2025 | 26.32% (0.26322) | 95.58th | v4 (v2025.03.14) |
| Mar 20, 2025 | 21.79% (0.21794) | 95.30th | v4 (v2025.03.14) |
| Mar 19, 2025 | 26.32% (0.26322) | 95.66th | v4 (v2025.03.14) |
| Mar 17, 2025 | 21.79% (0.21794) | 95.29th | v4 (v2025.03.14) |
| Dec 12, 2024 | 2.20% (0.02198) | 89.83th | v3 (v2023.03.01) |
| Nov 23, 2023 | 2.52% (0.02518) | 89.00th | v3 (v2023.03.01) |
| Oct 30, 2023 | 3.18% (0.03182) | 90.05th | v3 (v2023.03.01) |
| Sep 20, 2023 | 3.72% (0.03719) | 90.66th | v3 (v2023.03.01) |
| Sep 3, 2023 | 2.65% (0.02651) | 89.05th | v3 (v2023.03.01) |
| May 8, 2023 | 2.94% (0.02943) | 89.33th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.68% (0.01683) | 85.70th | v3 (v2023.03.01) |
| Mar 6, 2023 | 16.31% (0.16306) | 96.13th | v2 (v2022.01.01) |
| Feb 4, 2022 | 16.31% (0.16306) | 92.84th | v2 (v2022.01.01) |
| Feb 3, 2022 | 10.99% (0.10990) | 88.00th | v5 (v2026.06.15) |
| Apr 14, 2021 | 10.99% (0.10990) | 0.00th | v1 |
Weaknesses (1)
References (16)
- 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/104019 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1040807 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- https://access.redhat.com/errata/RHSA-2019:2519 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/security/cve/CVE-2018-10546 Vendor Advisory
- https://bugs.php.net/bug.php?id=76249 x_refsource_CONFIRMIssue TrackingPatchVendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1573802 Issue Tracking
- 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-2018-10546
- 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://www.cve.org/CVERecord?id=CVE-2018-10546
- 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.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Apr 29, 2018
Updated Aug 5, 2024
Reserved Apr 29, 2018
Link CVE-2018-10546
CISA Vulnrichment
Updated n/a