CVE-2016-6263

7.5 HIGH

Published: September 07, 2016 Modified: May 06, 2026

Description

The stringprep_utf8_nfkc_normalize function in lib/nfkc.c in libidn before 1.33 allows context-dependent attackers to cause a denial of service (out-of-bounds read and crash) via crafted UTF-8 data.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0

Vector String

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory

http://git.savannah.gnu.org/cgit/libidn.git/commit/?id=1fbee57ef3c72db2206dd87e4162108b2f425555

Source: cve@mitre.org

Issue Tracking Patch

http://lists.opensuse.org/opensuse-updates/2016-08/msg00005.html

Source: cve@mitre.org

Third Party Advisory

http://lists.opensuse.org/opensuse-updates/2016-08/msg00098.html

Source: cve@mitre.org

Third Party Advisory

http://www.debian.org/security/2016/dsa-3658

Source: cve@mitre.org

http://www.openwall.com/lists/oss-security/2016/07/20/6

Source: cve@mitre.org

Mailing List Third Party Advisory

http://www.openwall.com/lists/oss-security/2016/07/21/4

Source: cve@mitre.org

Mailing List Third Party Advisory

http://www.securityfocus.com/bid/92070

Source: cve@mitre.org

Third Party Advisory VDB Entry

http://www.ubuntu.com/usn/USN-3068-1

Source: cve@mitre.org

Third Party Advisory

https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E

Source: cve@mitre.org

https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E

Source: cve@mitre.org

https://lists.gnu.org/archive/html/help-libidn/2016-07/msg00009.html

Source: cve@mitre.org

Vendor Advisory

https://security.gentoo.org/glsa/201908-06

Source: cve@mitre.org

http://git.savannah.gnu.org/cgit/libidn.git/commit/?id=1fbee57ef3c72db2206dd87e4162108b2f425555