Out-of-bounds Write

Affecting libidn2 package, versions <2.0.5-1+deb10u1

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Overview

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.

References

CVSS Score

9.8
high severity
  • Attack Vector
    Network
  • Attack Complexity
    Low
  • Privileges Required
    None
  • User Interaction
    None
  • Scope
    Unchanged
  • Confidentiality
    High
  • Integrity
    High
  • Availability
    High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVE
CVE-2019-18224
CWE
CWE-787
Snyk ID
SNYK-DEBIAN10-LIBIDN2-474091
Disclosed
21 Oct, 2019
Published
22 Oct, 2019