CVE-2016-4356

HIGH

Libksba < 1.3.3 - Denial of Service via Out-of-Bounds Read in DN Decoder

Title source: llm
STIX 2.1

Description

The append_utf8_value function in the DN decoder (dn.c) in Libksba before 1.3.3 allows remote attackers to cause a denial of service (out-of-bounds read) by clearing the high bit of the byte after invalid utf-8 encoded data.

References (6)

Core 6
Core References
Mailing List mailing-list x_refsource_mlist
http://www.openwall.com/lists/oss-security/2016/05/10/3
Vendor Advisory vendor-advisory x_refsource_ubuntu
http://www.ubuntu.com/usn/USN-2982-1
Mailing List mailing-list x_refsource_mlist
http://www.openwall.com/lists/oss-security/2016/04/29/5
Mailing List mailing-list x_refsource_mlist
http://www.openwall.com/lists/oss-security/2016/04/29/8
Third Party Advisory vendor-advisory x_refsource_gentoo
https://security.gentoo.org/glsa/201604-04

Scores

CVSS v3 7.5
EPSS 0.0293
EPSS Percentile 85.4%
Attack Vector NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-119
Status published
Products (3)
canonical/ubuntu_linux 12.04
canonical/ubuntu_linux 14.04
gnupg/libksba < 1.3.2
Published Jun 13, 2016
Tracked Since Feb 18, 2026