Description
In PHP versions 7.2.x below 7.2.9, 7.3.x below 7.3.16 and 7.4.x below 7.4.4, while parsing EXIF data with exif_read_data() function, it is possible for malicious data to cause PHP to read one byte of uninitialized memory. This could potentially lead to information disclosure or crash.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| PHP Group | PHP | 7.3.x – < 7.3.16, 7.4.x – < 7.4.4, 7.2.x – < 7.2.29 | 7.3.16 |
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 | 7.4.5-1 | — |
| Debian 10 | php7.3 | 7.3.19-1~deb10u1 | DSA-4719-1 |
| Debian 9 | php7.0 | 7.0.33-0+deb9u8 | DSA-4717-1 |
| Debian 8 | php5 | 5.6.40+dfsg-0+deb8u11 | DLA-2188-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | php7.4 | 7.4.3-4ubuntu1.1 | USN-4330-2 |
| Ubuntu 18.04 LTS | php7.2 | 7.2.24-0ubuntu0.18.04.4 | USN-4330-1 |
| Ubuntu 16.04 LTS | php7.0 | 7.0.33-0ubuntu0.16.04.14 | USN-4330-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 14.04 LTS | php5 | 5.5.9+dfsg-1ubuntu4.29+esm11 | USN-4330-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8 | apcu-panel +2 | 5.1.17-1.module+el8.1.0+3189+a1bff096 | RHSA-2020:3662 |
| RHEL 8 | libzip +2 | 1.5.2-1.module+el8.1.0+3189+a1bff096 | RHSA-2020:3662 |
| RHEL 8 | php +25 | 7.3.20-1.module+el8.2.0+7373+b272fdef | RHSA-2020:3662 |
| RHEL 8 | php-pear | 1:1.10.9-1.module+el8.1.0+3189+a1bff096 | RHSA-2020:3662 |
| RHEL 8 | php-pecl-rrd | 2.0.1-1.module+el8.2.0+4968+1d5097db | RHSA-2020:3662 |
| RHEL 8 | php-pecl-xdebug | 2.8.0-1.module+el8.2.0+4968+1d5097db | RHSA-2020:3662 |
| RHEL 8 | php-pecl-zip | 1.15.4-1.module+el8.1.0+3189+a1bff096 | RHSA-2020:3662 |
| RHEL 3 | rh-php73-php +27 | 7.3.20-1.el7 | RHSA-2020:5275 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 8 | apcu-panel +2 | 5.1.17-1.module_el8.3.0+2009+b272fdef | ALSA-2020:3662 |
| AlmaLinux 8 | libzip +2 | 1.5.2-1.module_el8.3.0+2009+b272fdef | ALSA-2020:3662 |
| AlmaLinux 8 | php +25 | 7.3.20-1.module_el8.3.0+2009+b272fdef | ALSA-2020:3662 |
| AlmaLinux 8 | php-pear | 1:1.10.9-1.module_el8.3.0+2009+b272fdef | ALSA-2020:3662 |
| AlmaLinux 8 | php-pecl-rrd | 2.0.1-1.module_el8.3.0+2009+b272fdef | ALSA-2020:3662 |
| AlmaLinux 8 | php-pecl-xdebug | 2.8.0-1.module_el8.3.0+2009+b272fdef | ALSA-2020:3662 |
| AlmaLinux 8 | php-pecl-zip | 1.15.4-1.module_el8.3.0+2009+b272fdef | ALSA-2020:3662 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 8 | libzip | 1.5.2-1.module+el8.4.0+414+2e7afcdd | RLSA-2020:3662 |
| Rocky Linux 8 | php | 7.3.20-1.module+el8.4.0+414+2e7afcdd | RLSA-2020:3662 |
| Rocky Linux 8 | php-pear | 1:1.10.9-1.module+el8.4.0+414+2e7afcdd | RLSA-2020:3662 |
| Rocky Linux 8 | php-pecl-apcu | 5.1.17-1.module+el8.4.0+414+2e7afcdd | RLSA-2020:3662 |
| Rocky Linux 8 | php-pecl-rrd | 2.0.1-1.module+el8.4.0+414+2e7afcdd | RLSA-2020:3662 |
| Rocky Linux 8 | php-pecl-xdebug | 2.8.0-1.module+el8.4.0+414+2e7afcdd | RLSA-2020:3662 |
| Rocky Linux 8 | php-pecl-zip | 1.15.4-1.module+el8.4.0+414+2e7afcdd | RLSA-2020:3662 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP1 | php7 | 7.2.5-4.55.7 | SUSE-SU-2022:4067-1, SUSE-SU-2020:1199-1 |
| SLES 15 SP1 | tidy | 5.4.0-3.2.1 | SUSE-SU-2020:1199-1 |
| SLES 15 | php7 | 7.2.34-150000.4.103.1 | SUSE-SU-2022:4067-1 |
| SLES 12 SP5 | php72 | 7.2.5-1.46.1 | SUSE-SU-2020:1546-1 |
| SLES 12 SP4 | php5 | 5.5.14-109.76.1 | SUSE-SU-2020:1714-1 |
| SLES 12 SP4 | php72 | 7.2.5-1.46.1 | SUSE-SU-2020:1546-1 |
| SLES 12 | php5 | 5.5.14-109.76.1 | SUSE-SU-2020:1714-1 |
| SLES 12 | php72 | 7.2.5-1.46.1 | SUSE-SU-2020:1546-1 |
Show 5 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 15 SP1 | php7 | 7.2.34-150000.4.103.1 | SUSE-SU-2022:4067-1 |
| SLES for SAP 15 | php7 | 7.2.34-150000.4.103.1 | SUSE-SU-2022:4067-1 |
| SLE HPC 15 SP1 | php7 | 7.2.34-150000.4.103.1 | SUSE-SU-2022:4067-1 |
| SLE HPC 15 | php7 | 7.2.34-150000.4.103.1 | SUSE-SU-2022:4067-1 |
| SUSE Enterprise Storage 6 | php7 | 7.2.34-150000.4.103.1 | SUSE-SU-2022:4067-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.4 | php7 | 7.2.34-150000.4.103.1 | SUSE-SU-2022:4067-1 |
| openSUSE Leap 15.1 | php7 +1 | 7.2.5-lp151.6.25.1 | openSUSE-SU-2020:0642-1 |
| openSUSE Leap 15.1 | tidy | 5.4.0-lp151.3.3.1 | openSUSE-SU-2020:0642-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.15 | php7 | 7.3.16-r0 | — |
| Alpine v3.14 | php7 | 7.3.16-r0 | — |
| Alpine v3.13 | php7 | 7.3.16-r0 | — |
| Alpine v3.12 | php7 | 7.3.16-r0 | — |
| Alpine v3.11 | php7 | 7.3.16-r0 | — |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.9 | php7 | 7.2.31-r0 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 8 | apcu-panel +2 | 5.1.17-1.module+el8.2.0+5569+98c8b30d | ELSA-2020-3662 |
| Oracle Linux 8 | libzip +2 | 1.5.2-1.module+el8.2.0+5569+98c8b30d | ELSA-2020-3662 |
| Oracle Linux 8 | php +25 | 7.3.20-1.module+el8.2.0+7784+4033621d | ELSA-2020-3662 |
| Oracle Linux 8 | php-pear | 1:1.10.9-1.module+el8.2.0+5569+98c8b30d | ELSA-2020-3662 |
| Oracle Linux 8 | php-pecl-rrd | 2.0.1-1.module+el8.2.0+5569+98c8b30d | ELSA-2020-3662 |
| Oracle Linux 8 | php-pecl-xdebug | 2.8.0-1.module+el8.2.0+5569+98c8b30d | ELSA-2020-3662 |
| Oracle Linux 8 | php-pecl-zip | 1.15.4-1.module+el8.2.0+5569+98c8b30d | ELSA-2020-3662 |
Advisories 18
- ALSA-2020:3662 Moderate: php:7.3 security, bug fix, and enhancement update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2020:5275 Red Hat Security Advisory: rh-php73-php security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Aug 18, 2026
- RHSA-2020:3662 Red Hat Security Advisory: php:7.3 security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Aug 18, 2026
- USN-4330-2 php7.4 vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- USN-4330-1 php5, php7.0, php7.2, php7.3 vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- DSA-4719-1 php7.3 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-4717-1 php7.0 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-2188-1 php5 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- RLSA-2020:3662 Moderate: php:7.3 security, bug fix, and enhancement update Rocky Linux Security Advisories · Feb 4, 2026
- SUSE-SU-2022:4067-1 Security update for php7 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:1199-1 Security update for php7 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:1714-1 Security update for php5 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:1546-1 Security update for php72 SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2020:0642-1 Security update for php7 SUSE / openSUSE Security Updates · Feb 4, 2026
- FSA-202302 Festo: Several vulnerabilities in FactoryViews CERT@VDE · Feb 2, 2026
- ICSA-26-027-02 Festo Didactic SE MES PC CISA ICS & IT advisories · Jan 27, 2026
- FSA-202402 Several Vulnerabilities in MES PC (Windows 10) CERT@VDE · Dec 8, 2025
- ELSA-2020-3662 Moderate: php:7.3 security, bug fix, and enhancement update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Sep 9, 2020
References
- [debian-lts-announce] 20200426 [SECURITY] [DLA 2188-1] php5 security update mailing-list
- USN-4330-1 vendor-advisory
- USN-4330-2 vendor-advisory
- openSUSE-SU-2020:0642 vendor-advisory
- DSA-4717 vendor-advisory
- DSA-4719 vendor-advisory
- https://bugs.php.net/bug.php?id=79282
- https://security.netapp.com/advisory/ntap-20200403-0001/
- https://www.oracle.com/security-alerts/cpujan2021.html
- https://www.tenable.com/security/tns-2021-14