CVE-2020-7062 — Null Pointer Dereference in PHP Session Upload Progress

Affected: PHP Group PHP

In PHP versions 7.2.x below 7.2.28, 7.3.x below 7.3.15 and 7.4.x below 7.4.3, when using file upload functionality, if upload progress tracking is enabled, but session.upload_progress.cleanup is set to 0 (disabled), and the file upload fails, the upload procedure would try to clean up data that does not exist and encounter null pointer dereference, which would likely lead to a crash.

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-2020-7062 — Null Pointer Dereference in PHP Session Upload Progress

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