CVE-2019-8274

UltraVNC revision 1211 has a heap buffer overflow vulnerability in VNC server code inside file transfer offer handler, which can potentially in result code execution. This attack appears to be exploitable via network connectivity. This vulnerability has been fixed in revision 1212.

CVSS v3.0 9.8 CRITICAL
CVSS v2.0 7.5 HIGH

9.8^/10

CVSS v3.0 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

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

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://ics-cert.kaspersky.com/advisories/klcert-advisories/2019/03/01/klcert-19-021-ultravnc-heap-based-buffer-overflow/	Third Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-927095.pdf	Third Party Advisory
https://www.us-cert.gov/ics/advisories/icsa-20-161-06	Third Party Advisory US Government Resource

Advertisement

Configurations

Configuration 1 (hide)

cpe:2.3:a:uvnc:ultravnc:*:*:*:*:*:*:*:*

Configuration 2 (hide)

OR	cpe:2.3:a:siemens:sinumerik_access_mymachine\/p2p::::::::
	cpe:2.3:a:siemens:sinumerik_pcu_base_win10_software\/ipc::::::::
	cpe:2.3:a:siemens:sinumerik_pcu_base_win7_software\/ipc::::::::

Information

Published : 2019-03-08 15:29

Updated : 2020-10-22 09:58

NVD link : CVE-2019-8274

Mitre link : CVE-2019-8274

JSON object : View

CWE

CWE-787

Out-of-bounds Write

Advertisement

Products Affected

siemens

sinumerik_pcu_base_win10_software\/ipc
sinumerik_access_mymachine\/p2p
sinumerik_pcu_base_win7_software\/ipc

uvnc

ultravnc

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "https://ics-cert.kaspersky.com/advisories/klcert-advisories/2019/03/01/klcert-19-021-ultravnc-heap-based-buffer-overflow/", "name": "https://ics-cert.kaspersky.com/advisories/klcert-advisories/2019/03/01/klcert-19-021-ultravnc-heap-based-buffer-overflow/", "tags": ["Third Party Advisory"], "refsource": "MISC"}, {"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-927095.pdf", "name": "https://cert-portal.siemens.com/productcert/pdf/ssa-927095.pdf", "tags": ["Third Party Advisory"], "refsource": "CONFIRM"}, {"url": "https://www.us-cert.gov/ics/advisories/icsa-20-161-06", "name": "https://www.us-cert.gov/ics/advisories/icsa-20-161-06", "tags": ["Third Party Advisory", "US Government Resource"], "refsource": "MISC"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "UltraVNC revision 1211 has a heap buffer overflow vulnerability in VNC server code inside file transfer offer handler, which can potentially in result code execution. This attack appears to be exploitable via network connectivity. This vulnerability has been fixed in revision 1212."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-787"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2019-8274", "ASSIGNER": "vulnerability@kaspersky.com"}}, "impact": {"baseMetricV2": {"cvssV2": {"version": "2.0", "baseScore": 7.5, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "severity": "HIGH", "acInsufInfo": false, "impactScore": 6.4, "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}, "baseMetricV3": {"cvssV3": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 3.9}}, "publishedDate": "2019-03-08T23:29Z", "configurations": {"nodes": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:uvnc:ultravnc:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "1.2.2.3"}]}, {"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:siemens:sinumerik_access_mymachine\\/p2p:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "4.8"}, {"cpe23Uri": "cpe:2.3:a:siemens:sinumerik_pcu_base_win10_software\\/ipc:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "14.00"}, {"cpe23Uri": "cpe:2.3:a:siemens:sinumerik_pcu_base_win7_software\\/ipc:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndIncluding": "12.01"}]}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2020-10-22T16:58Z"}