CVE-2021-21706
Published: August 31, 2023Last modified: August 31, 2023
Description
In PHP versions 7.3.x below 7.3.31, 7.4.x below 7.4.24 and 8.0.x below 8.0.11, in Microsoft Windows environment, ZipArchive::extractTo may be tricked into writing a file outside target directory when extracting a ZIP file, thus potentially causing files to be created or overwritten, subject to OS permissions.
Severity score breakdown
Parameter | Value |
---|---|
Base score | 6.5 |
Attack Vector | NETWORK |
Attack complexity | LOW |
Privileges required | NONE |
User interaction | REQUIRED |
Scope | UNCHANGED |
Confidentiality | NONE |
Integrity impact | HIGH |
Availability impact | NONE |
Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N |
Status
Product | Release | Package | Status |
---|---|---|---|
Alpaquita Linux | 23 LTS | php81 | Not affected (8.1.22-r0) |
Stream | php81 | Not affected (8.1.22-r0) |