CVE-2016-10197

The search_make_new function in evdns.c in libevent before 2.1.6-beta allows attackers to cause a denial of service (out-of-bounds read) via an empty hostname.

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

7.5^/10

CVSS v3.0 : HIGH

Vector :

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
https://github.com/libevent/libevent/issues/332	Exploit Issue Tracking Third Party Advisory
https://github.com/libevent/libevent/commit/ec65c42052d95d2c23d1d837136d1cf1d9ecef9e	Patch Third Party Advisory
https://github.com/libevent/libevent/blob/release-2.1.6-beta/ChangeLog	Release Notes Third Party Advisory
http://www.openwall.com/lists/oss-security/2017/02/02/7	Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2017/01/31/17	Mailing List Third Party Advisory
http://www.debian.org/security/2017/dsa-3789	Third Party Advisory
http://www.securityfocus.com/bid/96014	Third Party Advisory VDB Entry
https://security.gentoo.org/glsa/201705-01	Third Party Advisory
http://www.securitytracker.com/id/1038320	Broken Link Third Party Advisory VDB Entry
https://access.redhat.com/errata/RHSA-2017:1201	Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:1106	Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:1104	Third Party Advisory

Advertisement

Configurations

Configuration 1 (hide)

cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:a:libevent_project:libevent:*:*:*:*:*:*:*:*

Information

Published : 2017-03-15 08:59

Updated : 2022-01-31 09:38

NVD link : CVE-2016-10197

Mitre link : CVE-2016-10197

JSON object : View

CWE

CWE-125

Out-of-bounds Read

Advertisement

Products Affected

debian

debian_linux

libevent_project

libevent

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "https://github.com/libevent/libevent/issues/332", "name": "https://github.com/libevent/libevent/issues/332", "tags": ["Exploit", "Issue Tracking", "Third Party Advisory"], "refsource": "CONFIRM"}, {"url": "https://github.com/libevent/libevent/commit/ec65c42052d95d2c23d1d837136d1cf1d9ecef9e", "name": "https://github.com/libevent/libevent/commit/ec65c42052d95d2c23d1d837136d1cf1d9ecef9e", "tags": ["Patch", "Third Party Advisory"], "refsource": "CONFIRM"}, {"url": "https://github.com/libevent/libevent/blob/release-2.1.6-beta/ChangeLog", "name": "https://github.com/libevent/libevent/blob/release-2.1.6-beta/ChangeLog", "tags": ["Release Notes", "Third Party Advisory"], "refsource": "CONFIRM"}, {"url": "http://www.openwall.com/lists/oss-security/2017/02/02/7", "name": "[oss-security] 20170202 Re: Bugs fixed in libevent 2.1.6", "tags": ["Mailing List", "Third Party Advisory"], "refsource": "MLIST"}, {"url": "http://www.openwall.com/lists/oss-security/2017/01/31/17", "name": "[oss-security] 20170131 Bugs fixed in libevent 2.1.6", "tags": ["Mailing List", "Third Party Advisory"], "refsource": "MLIST"}, {"url": "http://www.debian.org/security/2017/dsa-3789", "name": "DSA-3789", "tags": ["Third Party Advisory"], "refsource": "DEBIAN"}, {"url": "http://www.securityfocus.com/bid/96014", "name": "96014", "tags": ["Third Party Advisory", "VDB Entry"], "refsource": "BID"}, {"url": "https://security.gentoo.org/glsa/201705-01", "name": "GLSA-201705-01", "tags": ["Third Party Advisory"], "refsource": "GENTOO"}, {"url": "http://www.securitytracker.com/id/1038320", "name": "1038320", "tags": ["Broken Link", "Third Party Advisory", "VDB Entry"], "refsource": "SECTRACK"}, {"url": "https://access.redhat.com/errata/RHSA-2017:1201", "name": "RHSA-2017:1201", "tags": ["Third Party Advisory"], "refsource": "REDHAT"}, {"url": "https://access.redhat.com/errata/RHSA-2017:1106", "name": "RHSA-2017:1106", "tags": ["Third Party Advisory"], "refsource": "REDHAT"}, {"url": "https://access.redhat.com/errata/RHSA-2017:1104", "name": "RHSA-2017:1104", "tags": ["Third Party Advisory"], "refsource": "REDHAT"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "The search_make_new function in evdns.c in libevent before 2.1.6-beta allows attackers to cause a denial of service (out-of-bounds read) via an empty hostname."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-125"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2016-10197", "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": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/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": "2017-03-15T15:59Z", "configurations": {"nodes": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}]}, {"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:libevent_project:libevent:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndIncluding": "2.1.5"}]}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2022-01-31T17:38Z"}