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CVE-2016-4574

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Date: June 13, 2016

Off-by-one error in the append_utf8_value function in the DN decoder (dn.c) in Libksba before 1.3.4 allows remote attackers to cause a denial of service (out-of-bounds read) via invalid utf-8 encoded data. NOTE: this vulnerability exists because of an incomplete fix for CVE-2016-4356.

Language: C

Severity Score

Related Resources (10)

http://www.openwall.com/lists/oss-security/2016/05/10/3
http://www.ubuntu.com/usn/USN-2982-1
http://www.openwall.com/lists/oss-security/2016/05/10/4
http://lists.opensuse.org/opensuse-updates/2016-06/msg00028.html
http://git.gnupg.org/cgi-bin/gitweb.cgi?p=libksba.git;a=commit;h=6be61daac047d8e6aa941eb103f8e71a1d4e3c75
https://nvd.nist.gov/vuln/detail/CVE-2016-4574
https://access.redhat.com/security/cve/CVE-2016-4574
http://git.gnupg.org/cgi-bin/gitweb.cgi?p=libksba.git%3Ba=commit%3Bh=6be61daac047d8e6aa941eb103f8e71a1d4e3c75
http://lists.opensuse.org/opensuse-updates/2016-05/msg00087.html
https://www.mend.io/vulnerability-database/CVE-2016-4574

Severity Score

Weakness Type (CWE)

Numeric Errors

CWE-189

Top Fix

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CVSS v3

Base Score:
Attack Vector (AV):
Attack Complexity (AC):
Privileges Required (PR):
User Interaction (UI):
Scope (S):
Confidentiality (C): PARTIAL
Integrity (I): PARTIAL
Availability (A): PARTIAL

CVSS v2

Base Score:
Access Vector (AV):
Access Complexity (AC):
Authentication (AU):
Confidentiality (C): LOW
Integrity (I): NONE
Availability (A): NONE
Additional information:

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