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CVE-2019-12290

גבוהה 7.5

תיאור (מקור, אנגלית)

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.

מדדים

CVSS 3.1
7.5 (HIGH) מקור הציון: NVD CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
EPSS — סבירות ניצול
3% (אחוזון 100) נכון ל-14/10/2026
CWE
CWE-20

מוצרים מושפעים

gnu: libidn2

קישורים