National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2016-6263 Detail

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.

Source:  MITRE      Last Modified:  09/07/2016

Quick Info

CVE Dictionary Entry:
CVE-2016-6263
Original release date:
09/07/2016
Last revised:
11/28/2016
Source:
US-CERT/NIST

Impact

CVSS Severity (version 3.0):
CVSS v3 Base Score:
7.5 High
Vector:
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H (legend)
Impact Score:
3.6
Exploitability Score:
3.9
CVSS Version 3 Metrics:
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 Severity (version 2.0):
CVSS v2 Base Score:
5.0 MEDIUM
Vector:
(AV:N/AC:L/Au:N/C:N/I:N/A:P) (legend)
Impact Subscore:
2.9
Exploitability Subscore:
10.0
CVSS Version 2 Metrics:
Access Vector:
Network exploitable
Access Complexity:
Low
Authentication:
Not required to exploit
Impact Type:
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource Type Source Name
http://git.savannah.gnu.org/cgit/libidn.git/commit/?id=1fbee57ef3c72db2206dd87e4162108b2f425555 Issue Tracking; Patch External Source CONFIRM http://git.savannah.gnu.org/cgit/libidn.git/commit/?id=1fbee57ef3c72db2206dd87e4162108b2f425555
http://lists.opensuse.org/opensuse-updates/2016-08/msg00005.html Third Party Advisory External Source SUSE openSUSE-SU-2016:1924
http://lists.opensuse.org/opensuse-updates/2016-08/msg00098.html Third Party Advisory External Source SUSE openSUSE-SU-2016:2135
http://www.debian.org/security/2016/dsa-3658 External Source DEBIAN DSA-3658
http://www.openwall.com/lists/oss-security/2016/07/20/6 Mailing List; Third Party Advisory External Source MLIST [oss-security] 20160720 CVE request: multiple issues fixed in GNU libidn 1.33
http://www.openwall.com/lists/oss-security/2016/07/21/4 Mailing List; Third Party Advisory External Source MLIST [oss-security] 20160721 Re: CVE request: multiple issues fixed in GNU libidn 1.33
http://www.securityfocus.com/bid/92070 Third Party Advisory; VDB Entry External Source BID 92070
http://www.ubuntu.com/usn/USN-3068-1 Third Party Advisory External Source UBUNTU USN-3068-1
https://lists.gnu.org/archive/html/help-libidn/2016-07/msg00009.html Vendor Advisory External Source MLIST [help-libidn] 20160720 Libidn 1.33 released

Technical Details

Vulnerability Type (View All)

Vulnerable software and versions Switch to CPE 2.2

Configuration 1
OR
cpe:2.3:a:gnu:libidn:*:*:*:*:*:*:*:*    versions up to (including) 1.32

Denotes Vulnerable Software
Are we missing a CPE here? Please let us know.

Change History 4 change records found - show changes