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Oracle Solaris 11: CVE-2019-12290: Vulnerability in Libidn

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Oracle Solaris 11: CVE-2019-12290: Vulnerability in Libidn

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:N/I:P/A:N)
Published
10/22/2019
Created
12/19/2019
Added
12/18/2019
Modified
12/13/2021

Description

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.

Solution(s)

  • oracle-solaris-11-3-upgrade-value-consolidation-userland-userland-incorporation-0-5-11-0-175-3-36-0-26-0
  • oracle-solaris-11-4-upgrade-value-library-libidn2-2-0-4-11-4-16-0-1-3-0

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