National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2016-6261 Detail

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.

Source:  MITRE
Description Last Modified:  09/07/2016

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 7.5 HIGH
Vector: AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H (V3 legend)
Impact Score: 3.6
Exploitability Score: 3.9


Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

CVSS v2.0 Severity and Metrics:

Base Score: 5.0 MEDIUM
Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:P) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 10.0


Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Partial
Additional Information:
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://git.savannah.gnu.org/cgit/libidn.git/commit/?id=f20ce1128fb7f4d33297eee307dddaf0f92ac72d Issue Tracking Patch
http://lists.opensuse.org/opensuse-updates/2016-08/msg00098.html Third Party Advisory
http://www.debian.org/security/2016/dsa-3658
http://www.openwall.com/lists/oss-security/2016/07/20/6 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/07/21/4 Mailing List Third Party Advisory
http://www.securityfocus.com/bid/92070 Third Party Advisory VDB Entry
http://www.ubuntu.com/usn/USN-3068-1 Third Party Advisory
https://lists.gnu.org/archive/html/help-libidn/2015-07/msg00016.html Mailing List Vendor Advisory
https://lists.gnu.org/archive/html/help-libidn/2016-07/msg00009.html Vendor Advisory

Technical Details

Vulnerability Type (View All)

Change History

3 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2016-6261
NVD Published Date:
09/07/2016
NVD Last Modified:
11/28/2016