Search Results (9 CVEs found)

CVE Vendors Products Updated CVSS v3.1
CVE-2017-14061 1 Gnu 1 Libidn2 2025-04-20 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.
CVE-2017-14062 2 Debian, Gnu 2 Debian Linux, Libidn2 2025-04-20 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-2016-6263 1 Gnu 1 Libidn 2025-04-12 N/A
The stringprep_utf8_nfkc_normalize function in lib/nfkc.c in libidn before 1.33 allows context-dependent attackers to cause a denial of service (out-of-bounds read and crash) via crafted UTF-8 data.
CVE-2015-8948 3 Canonical, Gnu, Opensuse 4 Ubuntu Linux, Libidn, Leap and 1 more 2025-04-12 N/A
idn in GNU libidn before 1.33 might allow remote attackers to obtain sensitive memory information by reading a zero byte as input, which triggers an out-of-bounds read.
CVE-2016-6262 3 Canonical, Gnu, Opensuse 4 Ubuntu Linux, Libidn, Leap and 1 more 2025-04-12 N/A
idn in libidn before 1.33 might allow remote attackers to obtain sensitive memory information by reading a zero byte as input, which triggers an out-of-bounds read, a different vulnerability than CVE-2015-8948.
CVE-2016-6261 3 Canonical, Gnu, Opensuse 3 Ubuntu Linux, Libidn, Leap 2025-04-12 N/A
The idna_to_ascii_4i function in lib/idna.c in libidn before 1.33 allows context-dependent attackers to cause a denial of service (out-of-bounds read and crash) via 64 bytes of input.
CVE-2015-2059 3 Fedoraproject, Gnu, Opensuse 3 Fedora, Libidn, Opensuse 2025-04-12 N/A
The stringprep_utf8_to_ucs4 function in libin before 1.31, as used in jabberd2, allows context-dependent attackers to read system memory and possibly have other unspecified impact via invalid UTF-8 characters in a string, which triggers an out-of-bounds read.
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.