DescriptionIn PHP versions 7.2.x below 7.2.34, 7.3.x below 7.3.23 and 7.4.x below 7.4.11, when AES-CCM mode is used with openssl_encrypt() function with 12 bytes IV, only first 7 bytes of the IV is actually used. This can lead to both decreased security and incorrect encryption data.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
NVD severitymedium

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
php7.0 (PTS)stretch7.0.33-0+deb9u8fixed
stretch (security)7.0.33-0+deb9u10fixed
php7.3 (PTS)buster, buster (security)7.3.19-1~deb10u1vulnerable
php7.4 (PTS)bullseye7.4.11-1fixed

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

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


- php7.0 <not-affected> (Affected code not present)
Fixed in PHP 7.4.11, 7.3.23, 7.2.34
PHP Bug:;a=commit;h=0216630ea2815a5789a24279a1211ac398d4de79

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