CVE-2019-8277

UltraVNC revision 1211 contains multiple memory leaks (CWE-665) in VNC server code, which allows an attacker to read stack memory and can be abused for information disclosure. Combined with another vulnerability, it can be used to leak stack memory and bypass ASLR. This attack appears to be exploitable via network connectivity. These vulnerabilities have been fixed in revision 1212.

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 HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

5.0^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

References

Link	Resource
https://ics-cert.kaspersky.com/advisories/klcert-advisories/2019/03/01/klcert-19-024-ultravnc-improper-initialization/	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
https://cert-portal.siemens.com/productcert/pdf/ssa-940818.pdf
https://cert-portal.siemens.com/productcert/pdf/ssa-286838.pdf
https://us-cert.cisa.gov/ics/advisories/icsa-21-131-11

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 : 2021-06-28 06:15

NVD link : CVE-2019-8277

Mitre link : CVE-2019-8277

JSON object : View

CWE

CWE-665

Improper Initialization

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-19-024-ultravnc-improper-initialization/", "name": "https://ics-cert.kaspersky.com/advisories/klcert-advisories/2019/03/01/klcert-19-024-ultravnc-improper-initialization/", "tags": ["Third Party Advisory"], "refsource": "CONFIRM"}, {"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"}, {"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-940818.pdf", "name": "https://cert-portal.siemens.com/productcert/pdf/ssa-940818.pdf", "tags": [], "refsource": "CONFIRM"}, {"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-286838.pdf", "name": "https://cert-portal.siemens.com/productcert/pdf/ssa-286838.pdf", "tags": [], "refsource": "CONFIRM"}, {"url": "https://us-cert.cisa.gov/ics/advisories/icsa-21-131-11", "name": "https://us-cert.cisa.gov/ics/advisories/icsa-21-131-11", "tags": [], "refsource": "MISC"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "UltraVNC revision 1211 contains multiple memory leaks (CWE-665) in VNC server code, which allows an attacker to read stack memory and can be abused for information disclosure. Combined with another vulnerability, it can be used to leak stack memory and bypass ASLR. This attack appears to be exploitable via network connectivity. These vulnerabilities have been fixed in revision 1212."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-665"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2019-8277", "ASSIGNER": "vulnerability@kaspersky.com"}}, "impact": {"baseMetricV2": {"cvssV2": {"version": "2.0", "baseScore": 5.0, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "LOW", "availabilityImpact": "NONE", "confidentialityImpact": "PARTIAL"}, "severity": "MEDIUM", "acInsufInfo": false, "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:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 3.6, "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": "2021-06-28T13:15Z"}