CVE-2020-7066 — get_headers() silently truncates after a null byte

Affected: PHP Group PHP

In 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.

USN-4330-1 — php5, php7.0, php7.2, php7.3 vulnerabilities

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

It was discovered that PHP incorrectly handled certain file uploads. An attacker could possibly use this issue to cause a crash. (CVE-2020-7062)

It was discovered that PHP incorrectly handled certain PHAR archive files. An attacker could possibly use this issue to access sensitive information. (CVE-2020-7063)

It was discovered that PHP incorrectly handled certain EXIF files. An attacker could possibly use this issue to access sensitive information or cause a crash. (CVE-2020-7064)

It was discovered that PHP incorrectly handled certain UTF strings. An attacker could possibly use this issue to cause a crash or execute arbitrary code. This issue only affected Ubuntu 19.10. (CVE-2020-7065)

It was discovered that PHP incorrectly handled certain URLs. An attacker could possibly use this issue to expose sensitive information. This issue only affected Ubuntu 14.04 ESM, Ubuntu 16.04 LTS, Ubuntu 18.04 LTS and Ubuntu 19.10. (CVE-2020-7066)

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CVE-2020-7066 — get_headers() silently truncates after a null byte

USN-4330-1 — php5, php7.0, php7.2, php7.3 vulnerabilities