Description
Archive_Tar through 1.4.10 has :// filename sanitization only to address phar attacks, and thus any other stream-wrapper attack (such as file:// to overwrite files) can still succeed.
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 14 | php-pear | 1:1.10.9+submodules+notgz-1.1 | — |
| Debian 13 | php-pear | 1:1.10.9+submodules+notgz-1.1 | — |
| Debian 12 | php-pear | 1:1.10.9+submodules+notgz-1.1 | — |
| Debian 10 | php-pear | 1:1.10.6+submodules+notgz-1.1+deb10u1 | DSA-4817-1 |
| Debian 9 | drupal7 | 7.52-2+deb9u13 | DLA-2466-1 |
| Debian 9 | php-pear | 1:1.10.1+submodules+notgz-9+deb9u2 | DLA-2465-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | php-pear | 1:1.10.9+submodules+notgz-1ubuntu0.20.04.1 | USN-4654-1 |
| Ubuntu 18.04 LTS | php-pear | 1:1.10.5+submodules+notgz-1ubuntu1.18.04.2 | USN-4654-1 |
| Ubuntu 16.04 LTS | php-pear | 1:1.10.1+submodules+notgz-6ubuntu0.2 | USN-4654-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 16.04 LTS | drupal7 | 7.44-1ubuntu1~16.04.0+esm2 | USN-6981-1 |
| Ubuntu Pro 14.04 LTS | drupal7 | 7.26-1ubuntu0.1+esm2 | USN-6981-2 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8 | apcu-panel +2 | 5.1.18-1.module+el8.3.0+6678+b09f589e | RHSA-2022:6542 |
| RHEL 8 | libzip +2 | 1.6.1-1.module+el8.3.0+6678+b09f589e | RHSA-2022:6542 |
| RHEL 8 | php +25 | 7.4.19-4.module+el8.6.0+16316+906f6c6d | RHSA-2022:6542 |
| RHEL 8 | php-pear | 1:1.10.13-1.module+el8.6.0+16577+0788886f | RHSA-2022:6542 |
| RHEL 8 | php-pecl-rrd | 2.0.1-1.module+el8.3.0+6678+b09f589e | RHSA-2022:6542 |
| RHEL 8 | php-pecl-xdebug | 2.9.5-1.module+el8.3.0+6678+b09f589e | RHSA-2022:6542 |
| RHEL 8 | php-pecl-zip | 1.18.2-1.module+el8.3.0+6678+b09f589e | RHSA-2022:6542 |
| RHEL 7 | php-pear | 1:1.9.4-23.el7_9 | RHSA-2022:7340 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8.4 EUS | apcu-panel +2 | 5.1.18-1.module+el8.3.0+6678+b09f589e | RHSA-2022:6541 |
| RHEL 8.4 EUS | libzip +2 | 1.6.1-1.module+el8.3.0+6678+b09f589e | RHSA-2022:6541 |
| RHEL 8.4 EUS | php +25 | 7.4.6-5.module+el8.4.0+15727+276bb227 | RHSA-2022:6541 |
| RHEL 8.4 EUS | php-pear | 1:1.10.13-1.module+el8.4.0+16578+ed65e99e | RHSA-2022:6541 |
| RHEL 8.4 EUS | php-pecl-rrd | 2.0.1-1.module+el8.3.0+6678+b09f589e | RHSA-2022:6541 |
| RHEL 8.4 EUS | php-pecl-xdebug | 2.9.5-1.module+el8.3.0+6678+b09f589e | RHSA-2022:6541 |
| RHEL 8.4 EUS | php-pecl-zip | 1.18.2-1.module+el8.3.0+6678+b09f589e | RHSA-2022:6541 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 8 | apcu-panel +2 | 5.1.18-1.module_el8.6.0+2750+78feabcb | ALSA-2022:6542 |
| AlmaLinux 8 | libzip +2 | 1.6.1-1.module_el8.6.0+2750+78feabcb | ALSA-2022:6542 |
| AlmaLinux 8 | php +25 | 7.4.19-4.module_el8.6.0+3238+624bf8b8 | ALSA-2022:6542 |
| AlmaLinux 8 | php-pear | 1:1.10.13-1.module_el8.6.0+3268+b150a051 | ALSA-2022:6542 |
| AlmaLinux 8 | php-pecl-rrd | 2.0.1-1.module_el8.6.0+2750+78feabcb | ALSA-2022:6542 |
| AlmaLinux 8 | php-pecl-xdebug | 2.9.5-1.module_el8.6.0+2750+78feabcb | ALSA-2022:6542 |
| AlmaLinux 8 | php-pecl-zip | 1.18.2-1.module_el8.6.0+2750+78feabcb | ALSA-2022:6542 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 8 | libzip | 1.6.1-1.module+el8.4.0+415+e936cba3 | RLSA-2022:6542 |
| Rocky Linux 8 | php | 7.4.19-4.module+el8.6.0+1006+0d5a469f | RLSA-2022:6542 |
| Rocky Linux 8 | php-pear | 1:1.10.13-1.module+el8.6.0+1006+0d5a469f | RLSA-2022:6542 |
| Rocky Linux 8 | php-pecl-apcu | 5.1.18-1.module+el8.4.0+415+e936cba3 | RLSA-2022:6542 |
| Rocky Linux 8 | php-pecl-rrd | 2.0.1-1.module+el8.4.0+414+2e7afcdd | RLSA-2022:6542 |
| Rocky Linux 8 | php-pecl-xdebug | 2.9.5-1.module+el8.4.0+415+e936cba3 | RLSA-2022:6542 |
| Rocky Linux 8 | php-pecl-zip | 1.18.2-1.module+el8.4.0+415+e936cba3 | RLSA-2022:6542 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.20 | drupal7 | 7.75-r0 | — |
| Alpine v3.19 | drupal7 | 7.75-r0 | — |
| Alpine v3.18 | drupal7 | 7.75-r0 | — |
| Alpine v3.17 | drupal7 | 7.75-r0 | — |
| Alpine v3.16 | drupal7 | 7.75-r0 | — |
Show 5 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.15 | drupal7 | 7.75-r0 | — |
| Alpine v3.14 | drupal7 | 7.75-r0 | — |
| Alpine v3.13 | drupal7 | 7.75-r0 | — |
| Alpine v3.12 | drupal7 | 7.75-r0 | — |
| Alpine v3.11 | drupal7 | 7.75-r0 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | php-pear | 1:1.10.12-4.amzn2.0.1 | ALAS2-2021-1584 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 8 | apcu-panel +2 | 5.1.18-1.module+el8.3.0+7685+72d70b58 | ELSA-2022-6542 |
| Oracle Linux 8 | libzip +2 | 1.6.1-1.module+el8.3.0+7685+72d70b58 | ELSA-2022-6542 |
| Oracle Linux 8 | php +25 | 7.4.19-4.module+el8.6.0+20746+7a133c42 | ELSA-2022-6542 |
| Oracle Linux 8 | php-pear | 1:1.10.13-1.module+el8.6.0+20746+7a133c42 | ELSA-2022-6542 |
| Oracle Linux 8 | php-pecl-rrd | 2.0.1-1.module+el8.3.0+7685+72d70b58 | ELSA-2022-6542 |
| Oracle Linux 8 | php-pecl-xdebug | 2.9.5-1.module+el8.3.0+7685+72d70b58 | ELSA-2022-6542 |
| Oracle Linux 8 | php-pecl-zip | 1.18.2-1.module+el8.3.0+7685+72d70b58 | ELSA-2022-6542 |
| Oracle Linux 7 | php-pear | 1:1.9.4-23.el7_9 | ELSA-2022-7340 |
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.
Metasploit 1 module
-
PEAR Archive_Tar 1.4.10 Arbitrary File Write
exploit/multi/fileformat/archive_tar_arb_file_write
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 16
- ALSA-2022:6542 Moderate: php:7.4 security update AlmaLinux Security Advisories · Oct 29, 2026
- USN-6981-2 drupal7 vulnerabilities Ubuntu Security Notices (USN) · Jun 29, 2026
- USN-6981-1 drupal7 vulnerabilities Ubuntu Security Notices (USN) · Jun 25, 2026
- DSA-4817-1 php-pear - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-2465-1 php-pear - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-2466-1 drupal7 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- USN-4654-1 php-pear vulnerabilities Ubuntu Security Notices (USN) · Feb 10, 2026
- RLSA-2022:6542 Moderate: php:7.4 security update Rocky Linux Security Advisories · Feb 4, 2026
- FSA-202302 Festo: Several vulnerabilities in FactoryViews CERT@VDE · Feb 2, 2026
- RHSA-2022:7340 Red Hat Security Advisory: php-pear security update Red Hat Security Advisories (RHSA) · Nov 22, 2025
- RHSA-2022:6542 Red Hat Security Advisory: php:7.4 security update Red Hat Security Advisories (RHSA) · Nov 22, 2025
- RHSA-2022:6541 Red Hat Security Advisory: php:7.4 security update Red Hat Security Advisories (RHSA) · Nov 22, 2025
- WID-SEC-2022-1443 Drupal: Schwachstelle ermöglicht Ausführen von beliebigem Programmcode mit den Rechten des Dienstes BSI CERT-Bund (WID) · Sep 3, 2024
- ELSA-2022-7340 Moderate: php-pear security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Nov 3, 2022
- ELSA-2022-6542 Moderate: php:7.4 security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Sep 16, 2022
- ALAS2-2021-1584 Moderate: php-pear security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Jan 6, 2021
References
- https://github.com/pear/Archive_Tar/issues/33
- https://www.drupal.org/sa-core-2020-013
- [debian-lts-announce] 20201127 [SECURITY] [DLA 2466-1] drupal7 security update mailing-list
- FEDORA-2020-f351eb14e3 vendor-advisory
- FEDORA-2020-5271a896ff vendor-advisory
- FEDORA-2020-6f1079934c vendor-advisory
- FEDORA-2020-d50d74d6f2 vendor-advisory
- DSA-4817 vendor-advisory
- http://packetstormsecurity.com/files/161095/PEAR-Archive_Tar-Arbitrary-File-Write.html
- GLSA-202101-23 vendor-advisory
- FEDORA-2021-8093e197f4 vendor-advisory
- FEDORA-2021-0c013f520c vendor-advisory