CVE-2016-6263 Information

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.

CVSS Vector

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

Reference

http://git.savannah.gnu.org/cgit/libidn.git/commit/?id=1fbee57ef3c72db2206dd87e4162108b2f425555 http://lists.opensuse.org/opensuse-updates/2016-08/msg00005.html http://lists.opensuse.org/opensuse-updates/2016-08/msg00098.html http://www.debian.org/security/2016/dsa-3658 http://www.openwall.com/lists/oss-security/2016/07/20/6 http://www.openwall.com/lists/oss-security/2016/07/21/4 http://www.securityfocus.com/bid/92070 http://www.ubuntu.com/usn/USN-3068-1 https://lists.gnu.org/archive/html/help-libidn/2016-07/msg00009.html https://security.gentoo.org/glsa/201908-06

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.5