CVE-2020-7066

NameCVE-2020-7066
DescriptionIn PHP versions 7.2.x below 7.2.29, 7.3.x below 7.3.16 and 7.4.x below 7.4.4, while using get_headers() with user-supplied URL, if the URL contains zero (\0) character, the URL will be silently truncated at it. This may cause some software to make incorrect assumptions about the target of the get_headers() and possibly send some information to a wrong server.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDLA-2188-1, DSA-4717-1, DSA-4719-1, ELA-227-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
php5 (PTS)jessie, jessie (lts)5.6.40+dfsg-0+deb8u18fixed
php7.0 (PTS)stretch (security)7.0.33-0+deb9u12fixed
stretch (lts), stretch7.0.33-0+deb9u16fixed
php7.3 (PTS)buster7.3.31-1~deb10u1fixed
buster (security)7.3.31-1~deb10u5fixed
php7.4 (PTS)bullseye7.4.33-1+deb11u4fixed
bullseye (security)7.4.33-1+deb11u5fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
php5sourcewheezy5.4.45-0+deb7u29ELA-227-1
php5sourcejessie5.6.40+dfsg-0+deb8u11DLA-2188-1
php5source(unstable)(unfixed)
php7.0sourcestretch7.0.33-0+deb9u8DSA-4717-1
php7.0source(unstable)(unfixed)
php7.3sourcebuster7.3.19-1~deb10u1DSA-4719-1
php7.3source(unstable)(unfixed)
php7.4source(unstable)7.4.5-1

Notes

Fixed in PHP 7.4.4, 7.3.16, 7.2.29
PHP Bug: https://bugs.php.net/79329
https://git.php.net/?p=php-src.git;a=commit;h=0d139c5b94a5f485a66901919e51faddb0371c43

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