Description
In PHP versions prior to 7.4.33, 8.0.25 and 8.1.12, when using imageloadfont() function in gd extension, it is possible to supply a specially crafted font file, such as if the loaded font is used with imagechar() function, the read outside allocated buffer will be used. This can lead to crashes or disclosure of confidential information.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| PHP Group | PHP | 7.4.x – < 7.4.33, 8.0.x – < 8.0.25, 8.1.x – < 8.1.12 | 7.4.33 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 11 | php7.4 | 7.4.33-1+deb11u1 | DSA-5277-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 22.04 LTS | php8.1 | 8.1.2-1ubuntu2.8 | USN-5717-1 |
| Ubuntu 20.04 LTS | php7.4 | 7.4.3-4ubuntu2.15 | USN-5717-1 |
| Ubuntu 18.04 LTS | php7.2 | 7.2.24-0ubuntu0.18.04.15 | USN-5717-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9 | apcu-panel +2 | 5.1.21-1.module+el9.1.0.z+15477+cb86791d | RHSA-2023:2417 |
| RHEL 9 | php +23 | 8.0.27-1.el9_1 | RHSA-2023:2417, RHSA-2023:0965 |
| RHEL 9 | php-pecl-rrd | 2.0.3-4.module+el9.1.0.z+15477+cb86791d | RHSA-2023:2417 |
| RHEL 9 | php-pecl-xdebug3 | 3.1.4-1.module+el9.1.0.z+15477+cb86791d | RHSA-2023:2417 |
| RHEL 9 | php-pecl-zip | 1.20.1-1.module+el9.1.0.z+15477+cb86791d | RHSA-2023:2417 |
| RHEL 8 | apcu-panel +2 | 5.1.18-1.module+el8.3.0+6678+b09f589e | RHSA-2023:2903, RHSA-2023:0848 |
| RHEL 8 | libzip +2 | 1.6.1-1.module+el8.3.0+6678+b09f589e | RHSA-2023:2903, RHSA-2023:0848 |
| RHEL 8 | php +25 | 7.4.33-1.module+el8.8.0+17865+ef7eddfa | RHSA-2023:2903, RHSA-2023:0848 |
| RHEL 8 | php-pear | 1:1.10.13-1.module+el8.6.0+13671+84712317 | RHSA-2023:2903, RHSA-2023:0848 |
| RHEL 8 | php-pecl-rrd | 2.0.1-1.module+el8.3.0+6678+b09f589e | RHSA-2023:2903, RHSA-2023:0848 |
| RHEL 8 | php-pecl-xdebug | 2.9.5-1.module+el8.3.0+6678+b09f589e | RHSA-2023:2903 |
| RHEL 8 | php-pecl-xdebug3 | 3.1.2-1.module+el8.6.0+13671+84712317 | RHSA-2023:0848 |
| RHEL 8 | php-pecl-zip | 1.18.2-1.module+el8.3.0+6678+b09f589e | RHSA-2023:2903, RHSA-2023:0848 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 9 | apcu-panel +2 | 5.1.21-1.module_el9.1.0+15+94ba28e4 | ALSA-2023:2417 |
| AlmaLinux 9 | php +23 | 8.0.27-1.el9_1 | ALSA-2023:2417, ALSA-2023:0965 |
| AlmaLinux 9 | php-pecl-rrd | 2.0.3-4.module_el9.1.0+15+94ba28e4 | ALSA-2023:2417 |
| AlmaLinux 9 | php-pecl-xdebug3 | 3.1.4-1.module_el9.1.0+15+94ba28e4 | ALSA-2023:2417 |
| AlmaLinux 9 | php-pecl-zip | 1.20.1-1.module_el9.1.0+15+94ba28e4 | ALSA-2023:2417 |
| AlmaLinux 8 | apcu-panel +2 | 5.1.18-1.module_el8.6.0+2750+78feabcb | ALSA-2023:2903, ALSA-2023:0848 |
| AlmaLinux 8 | libzip +2 | 1.6.1-1.module_el8.6.0+2750+78feabcb | ALSA-2023:2903, ALSA-2023:0848 |
| AlmaLinux 8 | php +25 | 7.4.33-1.module_el8.8.0+3477+f828cbb0 | ALSA-2023:2903, ALSA-2023:0848 |
| AlmaLinux 8 | php-pear | 1:1.10.13-1.module_el8.6.0+2739+efabdb8f | ALSA-2023:2903, ALSA-2023:0848 |
| AlmaLinux 8 | php-pecl-rrd | 2.0.1-1.module_el8.6.0+2750+78feabcb | ALSA-2023:2903, ALSA-2023:0848 |
| AlmaLinux 8 | php-pecl-xdebug | 2.9.5-1.module_el8.6.0+2750+78feabcb | ALSA-2023:2903 |
| AlmaLinux 8 | php-pecl-xdebug3 | 3.1.2-1.module_el8.6.0+2739+efabdb8f | ALSA-2023:0848 |
| AlmaLinux 8 | php-pecl-zip | 1.18.2-1.module_el8.6.0+2750+78feabcb | ALSA-2023:2903, ALSA-2023:0848 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 9 | php | 8.0.27-1.el9_1 | RLSA-2023:0965 |
| Rocky Linux 9 | php-pecl-apcu | 5.1.21-1.module+el9.7.0+40003+454ed3c4 | RLSA-2023:2417 |
| Rocky Linux 9 | php-pecl-rrd | 2.0.3-4.module+el9.7.0+40003+454ed3c4 | RLSA-2023:2417 |
| Rocky Linux 9 | php-pecl-xdebug3 | 3.1.4-1.module+el9.7.0+40003+454ed3c4 | RLSA-2023:2417 |
| Rocky Linux 9 | php-pecl-zip | 1.20.1-1.module+el9.7.0+40003+454ed3c4 | RLSA-2023:2417 |
| Rocky Linux 8 | libzip | 1.6.1-1.module+el8.10.0+1604+6558efc7 | RLSA-2023:2903, RLSA-2023:0848 |
| Rocky Linux 8 | php | 7.4.33-1.module+el8.10.0+1604+6558efc7 | RLSA-2023:2903, RLSA-2023:0848 |
| Rocky Linux 8 | php-pear | 1:1.10.13-1.module+el8.7.0+1067+0a7071cc | RLSA-2023:2903, RLSA-2023:0848 |
| Rocky Linux 8 | php-pecl-apcu | 5.1.18-1.module+el8.10.0+1604+6558efc7 | RLSA-2023:2903, RLSA-2023:0848 |
| Rocky Linux 8 | php-pecl-rrd | 2.0.1-1.module+el8.4.0+414+2e7afcdd | RLSA-2023:2903, RLSA-2023:0848 |
| Rocky Linux 8 | php-pecl-xdebug | 2.9.5-1.module+el8.10.0+1604+6558efc7 | RLSA-2023:2903 |
| Rocky Linux 8 | php-pecl-xdebug3 | 3.1.2-1.module+el8.6.0+790+fc63e43f | RLSA-2023:0848 |
| Rocky Linux 8 | php-pecl-zip | 1.18.2-1.module+el8.10.0+1604+6558efc7 | RLSA-2023:2903, RLSA-2023:0848 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP4 | php7 +4 | 7.4.33-150400.4.13.1 | SUSE-SU-2022:3997-1 |
| SLES 15 SP4 | php8 +5 | 8.0.25-150400.4.17.1 | SUSE-SU-2022:4005-1 |
| SLES 15 SP3 | php7 | 7.4.33-150200.3.46.2 | SUSE-SU-2022:4069-1 |
| SLES 15 SP2 | php7 | 7.4.33-150200.3.46.2 | SUSE-SU-2022:4069-1 |
| SLES 12 SP5 | php74 | 7.4.33-1.47.2 | SUSE-SU-2022:4068-1 |
| SLES 12 | php74 | 7.4.33-1.47.2 | SUSE-SU-2022:4068-1 |
Show 6 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 15 SP2 | php7 | 7.4.33-150200.3.46.2 | SUSE-SU-2022:4069-1 |
| SLE HPC 15 SP2 | php7 | 7.4.33-150200.3.46.2 | SUSE-SU-2022:4069-1 |
| SUSE Manager Server 4.1 | php7 | 7.4.33-150200.3.46.2 | SUSE-SU-2022:4069-1 |
| SUSE Manager Retail Branch Server 4.1 | php7 | 7.4.33-150200.3.46.2 | SUSE-SU-2022:4069-1 |
| SUSE Manager Proxy 4.1 | php7 | 7.4.33-150200.3.46.2 | SUSE-SU-2022:4069-1 |
| SUSE Enterprise Storage 7 | php7 | 7.4.33-150200.3.46.2 | SUSE-SU-2022:4069-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | php8 | 8.1.12-1.1 | openSUSE-SU-2024:12467-1 |
| openSUSE Leap 15.4 | php7 | 7.4.33-150200.3.46.2 | SUSE-SU-2022:4069-1, SUSE-SU-2022:3997-1 |
| openSUSE Leap 15.4 | php7-fpm +3 | 7.4.33-150400.4.13.1 | SUSE-SU-2022:3997-1 |
| openSUSE Leap 15.4 | php7-test | 7.4.33-150400.4.13.2 | SUSE-SU-2022:3997-1 |
| openSUSE Leap 15.4 | php8 +5 | 8.0.25-150400.4.17.1 | SUSE-SU-2022:4005-1 |
| openSUSE Leap 15.3 | php7 +1 | 7.4.33-150200.3.46.2 | SUSE-SU-2022:4069-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.22 | php82 | 8.2.0_rc5-r0 | — |
| Alpine v3.21 | php82 | 8.2.0_rc5-r0 | — |
| Alpine v3.20 | php82 | 8.2.0_rc5-r0 | — |
| Alpine v3.19 | php81 | 8.1.12-r0 | — |
| Alpine v3.19 | php82 | 8.2.0_rc5-r0 | — |
| Alpine v3.18 | php81 | 8.1.12-r0 | — |
| Alpine v3.18 | php82 | 8.2.0_rc5-r0 | — |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.17 | php81 | 8.1.12-r0 | — |
| Alpine v3.16 | php8 | 8.0.25-r0 | — |
| Alpine v3.16 | php81 | 8.1.12-r0 | — |
| Alpine v3.15 | php7 | 7.4.33-r0 | — |
| Alpine v3.15 | php8 | 8.0.25-r0 | — |
| Alpine v3.14 | php7 | 7.4.33-r0 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | php8.1 +23 | 8.1.14-1.amzn2023.0.2 | ALAS2023-2023-081 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 9 | apcu-panel +2 | 5.1.21-1.module+el9.1.0+20776+c1b960c0 | ELSA-2023-2417 |
| Oracle Linux 9 | php +23 | 8.0.27-1.el9_1 | ELSA-2023-2417, ELSA-2023-0965 |
| Oracle Linux 9 | php-pecl-rrd | 2.0.3-4.module+el9.1.0+20776+c1b960c0 | ELSA-2023-2417 |
| Oracle Linux 9 | php-pecl-xdebug3 | 3.1.4-1.module+el9.1.0+20776+c1b960c0 | ELSA-2023-2417 |
| Oracle Linux 9 | php-pecl-zip | 1.20.1-1.module+el9.1.0+20776+c1b960c0 | ELSA-2023-2417 |
| Oracle Linux 8 | apcu-panel +2 | 5.1.18-1.module+el8.3.0+7685+72d70b58 | ELSA-2023-2903, ELSA-2023-0848 |
| Oracle Linux 8 | libzip +2 | 1.6.1-1.module+el8.3.0+7685+72d70b58 | ELSA-2023-2903, ELSA-2023-0848 |
| Oracle Linux 8 | php +25 | 7.4.33-1.module+el8.8.0+20974+ef7eddfa | ELSA-2023-2903, ELSA-2023-0848 |
| Oracle Linux 8 | php-pear | 1:1.10.13-1.module+el8.6.0+20568+84712317 | ELSA-2023-2903, ELSA-2023-0848 |
| Oracle Linux 8 | php-pecl-rrd | 2.0.1-1.module+el8.3.0+7685+72d70b58 | ELSA-2023-2903, ELSA-2023-0848 |
| Oracle Linux 8 | php-pecl-xdebug | 2.9.5-1.module+el8.3.0+7685+72d70b58 | ELSA-2023-2903 |
| Oracle Linux 8 | php-pecl-xdebug3 | 3.1.2-1.module+el8.6.0+20568+84712317 | ELSA-2023-0848 |
| Oracle Linux 8 | php-pecl-zip | 1.18.2-1.module+el8.3.0+7685+72d70b58 | ELSA-2023-2903, ELSA-2023-0848 |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
GitHub 2 repositories
-
sepkascurty-cpu/php-exploit_cve-2022-31630 ★ 1 · Mar 14, 2026
-
sepkascurty-cpu/CVE-2022-31630---Proof-of-Concept-Exploit-untuk-PHP-7.4.33 ★ 1 · Mar 14, 2026
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 27
- RHSA-2023:0848 Red Hat Security Advisory: php:8.0 security update Red Hat Security Advisories (RHSA) · Nov 13, 2026
- ALSA-2023:0848 Moderate: php:8.0 security update AlmaLinux Security Advisories · Nov 5, 2026
- ALSA-2023:2903 Moderate: php:7.4 security update AlmaLinux Security Advisories · Nov 5, 2026
- ALSA-2023:0965 Moderate: php security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2023:2417 Moderate: php:8.1 security update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2023:2903 Red Hat Security Advisory: php:7.4 security update Red Hat Security Advisories (RHSA) · Jun 27, 2026
- RHSA-2023:2417 Red Hat Security Advisory: php:8.1 security update Red Hat Security Advisories (RHSA) · Jun 27, 2026
- RHSA-2023:0965 Red Hat Security Advisory: php security update Red Hat Security Advisories (RHSA) · Jun 27, 2026
- USN-5717-1 php7.2, php7.4, php8.1 vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- DSA-5277-1 php7.4 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- RLSA-2023:0965 Moderate: php security update Rocky Linux Security Advisories · Feb 5, 2026
- RLSA-2023:0848 Moderate: php:8.0 security update Rocky Linux Security Advisories · Feb 4, 2026
- openSUSE-SU-2024:12467-1 php8-8.1.12-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:3997-1 Security update for php7 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:4068-1 Security update for php74 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:4069-1 Security update for php7 SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2022-1934 PHP: Schwachstelle ermöglicht Offenlegung von Informationen BSI CERT-Bund (WID) · Dec 28, 2025
- RLSA-2023:2903 Moderate: php:7.4 security update Rocky Linux Security Advisories · Dec 27, 2025
- RLSA-2023:2417 Moderate: php:8.1 security update Rocky Linux Security Advisories · Dec 27, 2025
- SUSE-SU-2022:4005-1 Security update for php8 SUSE / openSUSE Security Updates · May 2, 2025
- WID-SEC-2023-1021 Oracle Communications: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jun 29, 2023
- ELSA-2023-2903 Moderate: php:7.4 security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · May 24, 2023
- WID-SEC-2023-0561 Xerox FreeFlow Print Server: Mehrere Schwachstellen BSI CERT-Bund (WID) · May 18, 2023
- ELSA-2023-2417 Moderate: 8.1 security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · May 15, 2023
- ELSA-2023-0965 Moderate: php security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Feb 28, 2023
- ALAS2023-2023-081 Important: php8.1 security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Feb 22, 2023
- ELSA-2023-0848 Moderate: php:8.0 security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Feb 22, 2023