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 7.5 HIGH
CVSS v2.0 5.0 MEDIUM

7.5^/10

CVSS v3 : HIGH

V3 Legend

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

V2 Legend

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://cert-portal.siemens.com/productcert/pdf/ssa-286838.pdf
https://cert-portal.siemens.com/productcert/pdf/ssa-927095.pdf	Third Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-940818.pdf
https://ics-cert.kaspersky.com/advisories/klcert-advisories/2019/03/01/klcert-19-024-ultravnc-improper-initialization/	Third Party Advisory
https://us-cert.cisa.gov/ics/advisories/icsa-21-131-11
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-286838.pdf
https://cert-portal.siemens.com/productcert/pdf/ssa-927095.pdf	Third Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-940818.pdf
https://ics-cert.kaspersky.com/advisories/klcert-advisories/2019/03/01/klcert-19-024-ultravnc-improper-initialization/	Third Party Advisory
https://us-cert.cisa.gov/ics/advisories/icsa-21-131-11
https://www.us-cert.gov/ics/advisories/icsa-20-161-06	Third Party Advisory US Government Resource

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::::::::

History

21 Nov 2024, 04:49

Type	Values Removed	Values Added
References	~~() https://cert-portal.siemens.com/productcert/pdf/ssa-286838.pdf -~~	() https://cert-portal.siemens.com/productcert/pdf/ssa-286838.pdf -
References	~~() https://cert-portal.siemens.com/productcert/pdf/ssa-927095.pdf - Third Party Advisory~~	() https://cert-portal.siemens.com/productcert/pdf/ssa-927095.pdf - Third Party Advisory
References	~~() https://cert-portal.siemens.com/productcert/pdf/ssa-940818.pdf -~~	() https://cert-portal.siemens.com/productcert/pdf/ssa-940818.pdf -
References	~~() https://ics-cert.kaspersky.com/advisories/klcert-advisories/2019/03/01/klcert-19-024-ultravnc-improper-initialization/ - Third Party Advisory~~	() https://ics-cert.kaspersky.com/advisories/klcert-advisories/2019/03/01/klcert-19-024-ultravnc-improper-initialization/ - Third Party Advisory
References	~~() https://us-cert.cisa.gov/ics/advisories/icsa-21-131-11 -~~	() https://us-cert.cisa.gov/ics/advisories/icsa-21-131-11 -
References	~~() https://www.us-cert.gov/ics/advisories/icsa-20-161-06 - Third Party Advisory, US Government Resource~~	() https://www.us-cert.gov/ics/advisories/icsa-20-161-06 - Third Party Advisory, US Government Resource

Information

Published : 2019-03-08 23:29

Updated : 2024-11-21 04:49

NVD link : CVE-2019-8277

Mitre link : CVE-2019-8277

CVE.ORG link : CVE-2019-8277

JSON object : View

Products Affected

uvnc

ultravnc

siemens

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

CWE

CWE-665

Improper Initialization

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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."}, {"lang": "es", "value": "La revisi\u00f3n 1211 de UltraVNC contiene m\u00faltiples fugas de memoria en el c\u00f3digo del servidor VNC, un atacante podr\u00eda leer la pila de memoria pudiendo revelar informaci\u00f3n. Combinado con otra vulnerabilidad podr\u00eda realizar una fuga de informaci\u00f3n y saltarse el ASLR. Este ataque parece poder realizarse a trav\u00e9s de conexi\u00f3n de red. La vulnerabilidad ha sido solucionada en la revisi\u00f3n 1212."}], "lastModified": "2024-11-21T04:49:38.077", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:uvnc:ultravnc:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "555D034F-3D64-4ED1-9B63-F8D59199E99C", "versionEndExcluding": "1.2.2.3"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:siemens:sinumerik_access_mymachine\\/p2p:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D9345335-DF62-4472-93CD-E2C85453F91E", "versionEndExcluding": "4.8"}, {"criteria": "cpe:2.3:a:siemens:sinumerik_pcu_base_win10_software\\/ipc:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7498412D-79FD-43FE-AD9B-5820FB5CF7D8", "versionEndExcluding": "14.00"}, {"criteria": "cpe:2.3:a:siemens:sinumerik_pcu_base_win7_software\\/ipc:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "1F603341-03C5-46CA-8A74-EC5A50135194", "versionEndIncluding": "12.01"}], "operator": "OR"}]}], "sourceIdentifier": "vulnerability@kaspersky.com"}

7.5 /10

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

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

JSON object

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