CVE-2018-18438

Qemu has integer overflows because IOReadHandler and its associated functions use a signed integer data type for a size value.

CVSS v3.0 5.5 MEDIUM
CVSS v2.0 2.1 LOW

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

2.1^/10

CVSS v2.0 : LOW

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

Exploitability : 3.9 / Impact : 2.9

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
https://lists.gnu.org/archive/html/qemu-devel/2018-10/msg02402.html	Third Party Advisory Mailing List Patch
https://lists.gnu.org/archive/html/qemu-devel/2018-10/msg02396.html	Mailing List Patch Third Party Advisory
http://www.openwall.com/lists/oss-security/2018/10/17/3	Mailing List Third Party Advisory
http://www.securityfocus.com/bid/105953	Third Party Advisory VDB Entry

Advertisement

Configurations

Configuration 1 (hide)

cpe:2.3:a:qemu:qemu:-:*:*:*:*:*:*:*

Configuration 2 (hide)

OR	cpe:2.3:o:redhat:enterprise_linux:6.0:::::::*
	cpe:2.3:o:redhat:enterprise_linux:7.0:::::::*

Configuration 3 (hide)

OR	cpe:2.3:a:redhat:openstack:9:::::::*
	cpe:2.3:a:redhat:openstack:10:::::::*
	cpe:2.3:a:redhat:openstack:12:::::::*
	cpe:2.3:a:redhat:openstack:13:::::::*
	cpe:2.3:a:redhat:openstack:8:::::::*

Information

Published : 2018-10-19 15:29

Updated : 2021-08-04 10:15

NVD link : CVE-2018-18438

Mitre link : CVE-2018-18438

JSON object : View

CWE

CWE-190

Integer Overflow or Wraparound

Advertisement

Products Affected

redhat

openstack
enterprise_linux

qemu

qemu

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "https://lists.gnu.org/archive/html/qemu-devel/2018-10/msg02402.html", "name": "[qemu-devel] 20181012 [PATCH v2 07/11] chardev: Let IOReadHandler use unsigned type", "tags": ["Third Party Advisory", "Mailing List", "Patch"], "refsource": "MLIST"}, {"url": "https://lists.gnu.org/archive/html/qemu-devel/2018-10/msg02396.html", "name": "[qemu-devel] 20181012 [PATCH v2 00/11] chardev: Convert IO handlers to use unsigned type", "tags": ["Mailing List", "Patch", "Third Party Advisory"], "refsource": "MLIST"}, {"url": "http://www.openwall.com/lists/oss-security/2018/10/17/3", "name": "[oss-security] 20181017 CVE-2018-18438 Qemu: Integer overflow in ccid_card_vscard_read() allows memory corruption", "tags": ["Mailing List", "Third Party Advisory"], "refsource": "MLIST"}, {"url": "http://www.securityfocus.com/bid/105953", "name": "105953", "tags": ["Third Party Advisory", "VDB Entry"], "refsource": "BID"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "Qemu has integer overflows because IOReadHandler and its associated functions use a signed integer data type for a size value."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-190"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2018-18438", "ASSIGNER": "cve@mitre.org"}}, "impact": {"baseMetricV2": {"cvssV2": {"version": "2.0", "baseScore": 2.1, "accessVector": "LOCAL", "vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:P", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "NONE"}, "severity": "LOW", "acInsufInfo": false, "impactScore": 2.9, "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": "2018-10-19T22:29Z", "configurations": {"nodes": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:qemu:qemu:-:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}]}, {"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}]}, {"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:redhat:openstack:9:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:a:redhat:openstack:10:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:a:redhat:openstack:12:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:a:redhat:openstack:13:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:a:redhat:openstack:8:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}]}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2021-08-04T17:15Z"}