CVE-2017-6951

The keyring_search_aux function in security/keys/keyring.c in the Linux kernel through 3.14.79 allows local users to cause a denial of service (NULL pointer dereference and OOPS) via a request_key system call for the "dead" type.

CVSS v3.0 5.5 MEDIUM
CVSS v2.0 4.9 MEDIUM

5.5^/10

CVSS v3.0 : MEDIUM

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

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

4.9^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 3.9 / Impact : 6.9

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact COMPLETE

References

Link	Resource
http://www.spinics.net/lists/keyrings/msg01849.html	Mailing List Third Party Advisory
http://www.spinics.net/lists/keyrings/msg01846.html	Mailing List Third Party Advisory
http://www.spinics.net/lists/keyrings/msg01845.html	Mailing List Third Party Advisory
http://www.securityfocus.com/bid/96943	Third Party Advisory VDB Entry
https://access.redhat.com/errata/RHSA-2017:2669
https://access.redhat.com/errata/RHSA-2017:2077
https://access.redhat.com/errata/RHSA-2017:1842

Advertisement

Configurations

Configuration 1 (hide)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Information

Published : 2017-03-16 11:59

Updated : 2018-01-04 18:31

NVD link : CVE-2017-6951

Mitre link : CVE-2017-6951

JSON object : View

CWE

CWE-476

NULL Pointer Dereference

Advertisement

Products Affected

linux

linux_kernel

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "http://www.spinics.net/lists/keyrings/msg01849.html", "name": "http://www.spinics.net/lists/keyrings/msg01849.html", "tags": ["Mailing List", "Third Party Advisory"], "refsource": "MISC"}, {"url": "http://www.spinics.net/lists/keyrings/msg01846.html", "name": "http://www.spinics.net/lists/keyrings/msg01846.html", "tags": ["Mailing List", "Third Party Advisory"], "refsource": "MISC"}, {"url": "http://www.spinics.net/lists/keyrings/msg01845.html", "name": "http://www.spinics.net/lists/keyrings/msg01845.html", "tags": ["Mailing List", "Third Party Advisory"], "refsource": "MISC"}, {"url": "http://www.securityfocus.com/bid/96943", "name": "96943", "tags": ["Third Party Advisory", "VDB Entry"], "refsource": "BID"}, {"url": "https://access.redhat.com/errata/RHSA-2017:2669", "name": "RHSA-2017:2669", "tags": [], "refsource": "REDHAT"}, {"url": "https://access.redhat.com/errata/RHSA-2017:2077", "name": "RHSA-2017:2077", "tags": [], "refsource": "REDHAT"}, {"url": "https://access.redhat.com/errata/RHSA-2017:1842", "name": "RHSA-2017:1842", "tags": [], "refsource": "REDHAT"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "The keyring_search_aux function in security/keys/keyring.c in the Linux kernel through 3.14.79 allows local users to cause a denial of service (NULL pointer dereference and OOPS) via a request_key system call for the \"dead\" type."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-476"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2017-6951", "ASSIGNER": "cve@mitre.org"}}, "impact": {"baseMetricV2": {"cvssV2": {"version": "2.0", "baseScore": 4.9, "accessVector": "LOCAL", "vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:C", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "LOW", "availabilityImpact": "COMPLETE", "confidentialityImpact": "NONE"}, "severity": "MEDIUM", "impactScore": 6.9, "obtainAllPrivilege": false, "exploitabilityScore": 3.9, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}, "baseMetricV3": {"cvssV3": {"scope": "UNCHANGED", "version": "3.0", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.8}}, "publishedDate": "2017-03-16T18:59Z", "configurations": {"nodes": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndIncluding": "3.14.79"}]}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2018-01-05T02:31Z"}