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CVE
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CVE-2016-4356Date: (C)2016-08-25   (M)2023-12-22


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 Score and Metrics +CVSS Score and Metrics -

CVSS V3 Severity:CVSS V2 Severity:
CVSS Score : 7.5CVSS Score : 5.0
Exploit Score: 3.9Exploit Score: 10.0
Impact Score: 3.6Impact Score: 2.9
 
CVSS V3 Metrics:CVSS V2 Metrics:
Attack Vector: NETWORKAccess Vector: NETWORK
Attack Complexity: LOWAccess Complexity: LOW
Privileges Required: NONEAuthentication: NONE
User Interaction: NONEConfidentiality: NONE
Scope: UNCHANGEDIntegrity: NONE
Confidentiality: NONEAvailability: PARTIAL
Integrity: NONE 
Availability: HIGH 
  
Reference:
GLSA-201604-04
USN-2982-1
http://www.openwall.com/lists/oss-security/2016/04/29/5
http://www.openwall.com/lists/oss-security/2016/04/29/8
http://www.openwall.com/lists/oss-security/2016/05/10/3
http://git.gnupg.org/cgi-bin/gitweb.cgi?p=libksba.git%3Ba=commit%3Bh=243d12fdec66a4360fbb3e307a046b39b5b4ffc3

CPE    3
cpe:/o:canonical:ubuntu_linux:12.04::~~lts~~~
cpe:/a:gnupg:libksba
cpe:/o:canonical:ubuntu_linux:14.04::~~lts~~~
CWE    1
CWE-119
OVAL    4
oval:org.secpod.oval:def:110518
oval:org.secpod.oval:def:52173
oval:org.secpod.oval:def:35692
oval:org.secpod.oval:def:34609
...

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