GHSA-2XF4-CG6J-VHGQ symfony/polyfill-intl-idn: xn-- labels with ASCII-only Punycode payloads are treated as equivalent to their decoded form

Description symfony/polyfill-intl-idn provides a userland implementation of idntoutf8 and idntoascii for runtimes that lack the intl extension. Its Idn::process method decodes labels prefixed with xn-- using Punycode but never enforces the validity criterion added in UTS 46 revision 33 Section 4...

CVE-2017-11362: Improper Restriction of Operations within the Bounds of a Memory Buffer

In PHP 7.x before 7.0.21 and 7.1.x before 7.1.7, ext/intl/msgformat/msgformatparse.c does not restrict the locale length, which allows remote attackers to cause a denial of service stack-based buffer overflow and application crash or possibly have unspecified other impact within International...

CVE-2014-9912: Improper Restriction of Operations within the Bounds of a Memory Buffer

The geticudispvaluesrcphp function in ext/intl/locale/localemethods.c in PHP before 5.3.29, 5.4.x before 5.4.30, and 5.5.x before 5.5.14 does not properly restrict calls to the ICU uresbund.cpp component, which allows remote attackers to cause a denial of service buffer overflow or possibly have...

CVE-2016-7416: Improper Restriction of Operations within the Bounds of a Memory Buffer

ext/intl/msgformat/msgformatformat.c in PHP before 5.6.26 and 7.x before 7.0.11 does not properly restrict the locale length provided to the Locale class in the ICU library, which allows remote attackers to cause a denial of service application crash or possibly have unspecified other impact via ...

CVE-2016-5093: Out-of-bounds Read

The geticuvalueinternal function in ext/intl/locale/localemethods.c in PHP before 5.5.36, 5.6.x before 5.6.22, and 7.x before 7.0.7 does not ensure the presence of a '\0' character, which allows remote attackers to cause a denial of service out-of-bounds read or possibly have unspecified other...

CVE-2016-4540: Undefined Security Weakness

The graphemestripos function in ext/intl/grapheme/graphemestring.c in PHP before 5.5.35, 5.6.x before 5.6.21, and 7.x before 7.0.6 allows remote attackers to cause a denial of service out-of-bounds read or possibly have unspecified other impact via a negative offset...

CVE-2015-8616: Undefined Security Weakness

Use-after-free vulnerability in the Collator::sortWithSortKeys function in ext/intl/collator/collatorsort.c in PHP 7.x before 7.0.1 allows remote attackers to cause a denial of service application crash or possibly have unspecified other impact by leveraging the relationships between a key buffer...