CVE-2019-12290
Vulnerability from cvelistv5
Published
2019-10-22 15:14
Modified
2024-08-04 23:17
Severity ?
Summary
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.
References
cve@mitre.orghttp://lists.opensuse.org/opensuse-security-announce/2019-12/msg00008.html
cve@mitre.orghttp://lists.opensuse.org/opensuse-security-announce/2019-12/msg00009.html
cve@mitre.orghttps://gitlab.com/libidn/libidn2/commit/241e8f486134793cb0f4a5b0e5817a97883401f5Patch, Third Party Advisory
cve@mitre.orghttps://gitlab.com/libidn/libidn2/commit/614117ef6e4c60e1950d742e3edf0a0ef8d389deThird Party Advisory
cve@mitre.orghttps://gitlab.com/libidn/libidn2/merge_requests/71Patch, Third Party Advisory
cve@mitre.orghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3UFT76Y7OSGPZV3EBEHD6ISVUM3DLARM/
cve@mitre.orghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KXDKYWFV6N2HHVSE67FFDM7G3FEL2ZNE/
cve@mitre.orghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ONG3GJRRJO35COPGVJXXSZLU4J5Y42AT/
cve@mitre.orghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RSI4TI2JTQWQ3YEUX5X36GTVGKO4QKZ5/
cve@mitre.orghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U6ZXL2RDNQRAHCMKWPOMJFKYJ344X4HL/
cve@mitre.orghttps://security.gentoo.org/glsa/202003-63
cve@mitre.orghttps://usn.ubuntu.com/4168-1/
Impacted products
n/an/a
Show details on NVD website

To clipboard 

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