CVE-2020-7069 — Wrong ciphertext/tag in AES-CCM encryption for a 12 bytes IV

Affected: PHP Group PHP

In 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.

USN-4583-1 — php5, php7.0, php7.2, php7.4 vulnerabilities

Affected: Ubuntu:Pro:14.04:LTS: php5, Ubuntu:16.04:LTS: php7.0, Ubuntu:18.04:LTS: php7.2, Ubuntu:20.04:LTS: php7.4

It was discovered that PHP incorrectly handled certain encrypt ciphers. An attacker could possibly use this issue to decrease security or cause incorrect encryption data. This issue only affected Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2020-7069)

It was discorevered that PHP incorrectly handled certain HTTP cookies. An attacker could possibly use this issue to forge cookie which is supposed to be secure. (CVE-2020-7070)

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CVE-2020-7069 — Wrong ciphertext/tag in AES-CCM encryption for a 12 bytes IV

USN-4583-1 — php5, php7.0, php7.2, php7.4 vulnerabilities