PT-2016-6031 · Kde+3 · Libksba+3

Pascal Cuoq · Published 2016-05-13 · Updated 2024-06-15 · CVE-2016-4574

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Libksba versions prior to 1.3.4

Description The issue is caused by an off-by-one error in the append utf8 value function within the DN decoder (dn.c) in Libksba. This error allows remote attackers to cause a denial of service (out-of-bounds read) via invalid utf-8 encoded data.

Recommendations For versions prior to 1.3.4, update to version 1.3.4 or later to resolve the issue. As a temporary workaround, consider restricting the input of utf-8 encoded data to prevent exploitation.

Fix

DoS

Weakness Enumeration

CWE-189

Related Identifiers

ALT-PU-2017-3589

CVE-2016-4574

MGASA-2016-0181

OPENSUSE-SU-2024:10126-1

SUSE-SU-2016:1509-1

SUSE-SU-2016:1510-1

SUSE-SU-2016_1509-1

SUSE-SU-2016_1510-1

SUSE-SU-2017:2699-1

SUSE-SU-2017:2700-1

USN-2982-1

Affected Products

Alt Linux

Libksba

Suse

Ubuntu

References · 47

• http://lists.opensuse.org/opensuse-updates/2016-05/msg00087.html · Vendor Advisory
• https://errata.altlinux.org/ALT-PU-2017-3589 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2016:1509-1 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-4574 · Security Note
• https://cve.org/CVERecord?id=CVE-2016-4574 · Security Note
• https://osv.dev/vulnerability/MGASA-2016-0181 · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-4353 · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-4574 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-4355 · Security Note
• https://osv.dev/vulnerability/openSUSE-SU-2024:10126-1 · Vendor Advisory
• https://osv.dev/vulnerability/USN-2982-1 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2016-4574 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2016-4574 · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-4356 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2016-4574 · Vendor Advisory