Description
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.
References (4)
Core 4
Core References
Third Party Advisory vendor-advisory
x_refsource_debian
http://www.debian.org/security/2017/dsa-3988
Release Notes, Third Party Advisory x_refsource_confirm
https://gitlab.com/libidn/libidn2/blob/master/NEWS
Patch, Third Party Advisory x_refsource_confirm
https://gitlab.com/libidn/libidn2/commit/3284eb342cd0ed1a18786e3fcdf0cdd7e76676bd
Mailing List, Third Party Advisory mailing-list
x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2018/07/msg00040.html
Scores
CVSS v3
9.8
EPSS
0.0121
EPSS Percentile
79.1%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-190
Status
published
Products (4)
debian/debian_linux
8.0
debian/debian_linux
9.0
debian/debian_linux
10.0
gnu/libidn2
< 2.0.4
Published
Aug 31, 2017
Tracked Since
Feb 18, 2026