Name: CVE-2016-4356: Improper Restriction of Operations within the Bounds of a Memory Buffer
Creator: Rapid7
Published: 2016-06-13T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2016-4356, CWE-119, CVSS 7.5, EPSS 0.03278

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.

CVSS Details

CVSS 3.1 Base Score: 7.5
CVSS 3.0 Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Debian	—	Upgrade libksba	Jul 30, 2024	Jun 13, 2016
Freebsd	—	Upgrade libksba	Dec 10, 2025	May 3, 2016
Huawei Euleros 2_0_sp2	—	Upgrade libksba	Feb 22, 2021	Jun 13, 2016
Huawei Euleros 2_0_sp3	—	Upgrade libksba	Jan 20, 2021	Jun 13, 2016
Huawei Euleros 2_0_sp5	—	Upgrade libksba	Feb 3, 2021	Jun 13, 2016
Redhat_linux	—	No solution exists	Jul 9, 2025	Apr 8, 2015
Ubuntu	—	Upgrade libksba8	May 17, 2016	May 17, 2016

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CVSS Details

Covered by Rapid7

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