CVE-2016-4574

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.

CVSS v3.0 7.5 HIGH
CVSS v2.0 5.0 MEDIUM

7.5^/10

CVSS v3.0 : HIGH

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

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

5.0^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:N/C:N/I:N/A:P

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
http://www.openwall.com/lists/oss-security/2016/05/10/3
http://www.ubuntu.com/usn/USN-2982-1
http://git.gnupg.org/cgi-bin/gitweb.cgi?p=libksba.git;a=commit;h=6be61daac047d8e6aa941eb103f8e71a1d4e3c75
http://www.openwall.com/lists/oss-security/2016/05/10/4
http://lists.opensuse.org/opensuse-updates/2016-05/msg00087.html
http://lists.opensuse.org/opensuse-updates/2016-06/msg00028.html

Advertisement

Configurations

Configuration 1 (hide)

cpe:2.3:a:libksba_project:libksba:*:*:*:*:*:*:*:*

Configuration 2 (hide)

OR	cpe:2.3:o:canonical:ubuntu_linux:15.10:::::::*
	cpe:2.3:o:canonical:ubuntu_linux:14.04::::lts:::
	cpe:2.3:o:canonical:ubuntu_linux:12.04::::lts:::
	cpe:2.3:o:canonical:ubuntu_linux:16.04::::lts:::

Configuration 3 (hide)

OR	cpe:2.3:o:opensuse:opensuse:13.2:::::::*
	cpe:2.3:o:opensuse:leap:42.1:::::::*

Information

Published : 2016-06-13 12:59

Updated : 2019-11-29 05:49

NVD link : CVE-2016-4574

Mitre link : CVE-2016-4574

JSON object : View

CWE

CWE-189

Numeric Errors

Advertisement

Products Affected

canonical

ubuntu_linux

libksba_project

libksba

opensuse

opensuse
leap

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "http://www.openwall.com/lists/oss-security/2016/05/10/3", "name": "[oss-security] 20160510 Re: Re: CVE request: three issues in libksba", "tags": [], "refsource": "MLIST"}, {"url": "http://www.ubuntu.com/usn/USN-2982-1", "name": "USN-2982-1", "tags": [], "refsource": "UBUNTU"}, {"url": "http://git.gnupg.org/cgi-bin/gitweb.cgi?p=libksba.git;a=commit;h=6be61daac047d8e6aa941eb103f8e71a1d4e3c75", "name": "http://git.gnupg.org/cgi-bin/gitweb.cgi?p=libksba.git;a=commit;h=6be61daac047d8e6aa941eb103f8e71a1d4e3c75", "tags": [], "refsource": "CONFIRM"}, {"url": "http://www.openwall.com/lists/oss-security/2016/05/10/4", "name": "[oss-security] 20160510 Re: CVE request: three issues in libksba", "tags": [], "refsource": "MLIST"}, {"url": "http://lists.opensuse.org/opensuse-updates/2016-05/msg00087.html", "name": "openSUSE-SU-2016:1370", "tags": [], "refsource": "SUSE"}, {"url": "http://lists.opensuse.org/opensuse-updates/2016-06/msg00028.html", "name": "openSUSE-SU-2016:1525", "tags": [], "refsource": "SUSE"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "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."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-189"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2016-4574", "ASSIGNER": "cve@mitre.org"}}, "impact": {"baseMetricV2": {"cvssV2": {"version": "2.0", "baseScore": 5.0, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "NONE"}, "severity": "MEDIUM", "impactScore": 2.9, "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}, "baseMetricV3": {"cvssV3": {"scope": "UNCHANGED", "version": "3.0", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}}, "publishedDate": "2016-06-13T19:59Z", "configurations": {"nodes": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:libksba_project:libksba:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndIncluding": "1.3.3"}]}, {"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*", "cpe_name": [], "vulnerable": true}]}, {"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:o:opensuse:opensuse:13.2:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:o:opensuse:leap:42.1:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}]}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2019-11-29T13:49Z"}