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Medium DSA-4935-1 2 CVEs

php7.3 - security update

Published Jul 5, 2021 · Updated Mar 9, 2026

Ecosystem: Debian

Fixed packages 1

ReleasePackageFixed in
Debian · 10 php7.3 7.3.29-1~deb10u1

Vulnerabilities 2

  • Medium 5.0
    CVE-2021-21704

    Multiple vulnerabilities in Firebird client extension

    In PHP versions 7.3.x below 7.3.29, 7.4.x below 7.4.21 and 8.0.x below 8.0.8, when using Firebird PDO driver extension, a malicious database server could cause crashes in various database functions, such as getAttribute(), execute(), fetch() and others by ret…

    PHP Group PHP php5 php7.0 Debian Ubuntu
  • Medium 4.3
    CVE-2021-21705

    Incorrect URL validation in FILTER_VALIDATE_URL

    In PHP versions 7.3.x below 7.3.29, 7.4.x below 7.4.21 and 8.0.x below 8.0.8, when using URL validation functionality via filter_var() function with FILTER_VALIDATE_URL parameter, an URL with invalid password field can be accepted as valid. This can lead to t…

    PHP Group PHP php5 php7.0 Debian Ubuntu Alpine