PEAR Archive_Tar version 1.4.3 and earlier contains a CWE-502, CWE-915 vulnerability in the Archive_Tar class. There are several file operations with `$v_header['filename']` as parameter (such as file_exists, is_file, is_dir, etc). When extract is called without a specific prefix path, we can trigger unserialization by crafting a tar file with `phar://[path_to_malicious_phar_file]` as path. Object injection can be used to trigger destruct in the loaded PHP classes, e.g. the Archive_Tar class itself. With Archive_Tar object injection, arbitrary file deletion can occur because `@unlink($this->_temp_tarname)` is called. If another class with useful gadget is loaded, it may possible to cause remote code execution that can result in files being deleted or possibly modified. This vulnerability appears to have been fixed in 1.4.4.
Metrics
Affected Vendors & Products
Advisories
| Source | ID | Title |
|---|---|---|
Debian DLA |
DLA-1674-1 | php5 security update |
Debian DLA |
DLA-1685-1 | drupal7 security update |
Debian DSA |
DSA-4378-1 | php-pear security update |
Github GHSA |
GHSA-3q76-jq6m-573p | Archive_Tar contains Potential RCE if filename starts with phar:// |
Ubuntu USN |
USN-3857-1 | PEAR vulnerability |
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Sun, 13 Jul 2025 13:45:00 +0000
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Status: PUBLISHED
Assigner: mitre
Published:
Updated: 2024-08-05T12:47:57.148Z
Reserved: 2018-12-20T00:00:00
Link: CVE-2018-1000888
No data.
Status : Modified
Published: 2018-12-28T16:29:01.957
Modified: 2024-11-21T03:40:35.680
Link: CVE-2018-1000888
OpenCVE Enrichment
No data.
Debian DLA
Debian DSA
Github GHSA
Ubuntu USN