CVE-2016-6261 Information

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.

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=f20ce1128fb7f4d33297eee307dddaf0f92ac72d 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/2015-07/msg00016.html https://lists.gnu.org/archive/html/help-libidn/2016-07/msg00009.html

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