Description
The idna_to_ascii_4i function in lib/idna.c in libidn before 1.33 allows context-dependent attackers to cause a denial of service (out-of-bounds read and crash) via 64 bytes of input.
References (11)
Core 11
Core References
Mailing List, Third Party Advisory mailing-list
x_refsource_mlist
http://www.openwall.com/lists/oss-security/2016/07/21/4
Third Party Advisory vendor-advisory
x_refsource_suse
http://lists.opensuse.org/opensuse-updates/2016-08/msg00098.html
Mailing List, Third Party Advisory mailing-list
x_refsource_mlist
http://www.openwall.com/lists/oss-security/2016/07/20/6
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/92070
Third Party Advisory vendor-advisory
x_refsource_debian
http://www.debian.org/security/2016/dsa-3658
Issue Tracking, Patch x_refsource_confirm
http://git.savannah.gnu.org/cgit/libidn.git/commit/?id=f20ce1128fb7f4d33297eee307dddaf0f92ac72d
Vendor Advisory mailing-list
x_refsource_mlist
https://lists.gnu.org/archive/html/help-libidn/2016-07/msg00009.html
Third Party Advisory vendor-advisory
x_refsource_ubuntu
http://www.ubuntu.com/usn/USN-3068-1
Mailing List, Vendor Advisory mailing-list
x_refsource_mlist
https://lists.gnu.org/archive/html/help-libidn/2015-07/msg00016.html
Mailing List mailing-list
x_refsource_mlist
https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E
Mailing List mailing-list
x_refsource_mlist
https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E
Scores
CVSS v3
7.5
EPSS
0.0227
EPSS Percentile
84.8%
Attack Vector
NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Details
CWE
CWE-125
Status
published
Products (5)
canonical/ubuntu_linux
12.04
canonical/ubuntu_linux
14.04
canonical/ubuntu_linux
16.04
gnu/libidn
< 1.32
opensuse/leap
42.1
Published
Sep 07, 2016
Tracked Since
Feb 18, 2026