CVE-2020-7070 — PHP parses encoded cookie names so malicious `__Host-` cookies can be sent

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 PHP is processing incoming HTTP cookie values, the cookie names are url-decoded. This may lead to cookies with prefixes like __Host confused with cookies that decode to such prefix, thus leading to an attacker being able to forge cookie which is supposed to be secure. See also CVE-2020-8184 for more information.

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-2020-7070 — PHP parses encoded cookie names so malicious `__Host-` cookies can be sent

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