Filtered by vendor Gnu Subscriptions
Filtered by product Libidn2 Subscriptions
Total 4 CVE
CVE Vendors Products Updated CVSS v3.1
CVE-2019-18224 2 Gnu, Redhat 2 Libidn2, Enterprise Linux 2024-11-21 9.8 Critical
idn2_to_ascii_4i in lib/lookup.c in GNU libidn2 before 2.1.1 has a heap-based buffer overflow via a long domain string.
CVE-2019-12290 1 Gnu 1 Libidn2 2024-11-21 7.5 High
GNU libidn2 before 2.2.0 fails to perform the roundtrip checks specified in RFC3490 Section 4.2 when converting A-labels to U-labels. This makes it possible in some circumstances for one domain to impersonate another. By creating a malicious domain that matches a target domain except for the inclusion of certain punycoded Unicode characters (that would be discarded when converted first to a Unicode label and then back to an ASCII label), arbitrary domains can be impersonated.
CVE-2017-14062 2 Debian, Gnu 2 Debian Linux, Libidn2 2024-11-21 9.8 Critical
Integer overflow in the decode_digit function in puny_decode.c in Libidn2 before 2.0.4 allows remote attackers to cause a denial of service or possibly have unspecified other impact.
CVE-2017-14061 1 Gnu 1 Libidn2 2024-11-21 N/A
Integer overflow in the _isBidi function in bidi.c in Libidn2 before 2.0.4 allows remote attackers to cause a denial of service or possibly have unspecified other impact.