CVE-2021-21706

NameCVE-2021-21706
DescriptionIn 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.
SourceCVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
php7.0source(unstable)(not affected)
php7.3source(unstable)(not affected)
php7.4source(unstable)(not affected)
php8.0source(unstable)(not affected)

Notes

- php8.0 <not-affected> (Windows specific issue)
- php7.4 <not-affected> (Windows specific issue)
- php7.3 <not-affected> (Windows specific issue)
- php7.0 <not-affected> (Windows specific issue)
Fixed in 8.0.11, 7.4.24, 7.3.31
PHP Bug: https://bugs.php.net/81420
Search for package or bug name: Reporting problems