CVE Vulnerability

CVE-2019-8259

UltraVNC revision 1198 contains multiple memory leaks (CWE-655) in VNC client code, which allow 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 1199.

5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 10 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

Scope

7.5 /10

CVSS v3.0 : 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

References
Link Resource
https://ics-cert.kaspersky.com/advisories/klcert-advisories/2019/03/01/klcert-19-005-ultravnc-memory-leak/ 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
Configurations

Configuration 1

cpe:2.3:a:uvnc:ultravnc:*:*:*:*:*:*:*:*
cpe:2.3:a:siemens:sinumerik_pcu_base_win7_software/ipc:*:*:*:*:*:*:*:*
cpe:2.3:a:siemens:sinumerik_pcu_base_win10_software/ipc:*:*:*:*:*:*:*:*
cpe:2.3:a:siemens:sinumerik_access_mymachine/p2p:*:*:*:*:*:*:*:*
Information

Published : 2019-03-05 03:29

Updated : 2021-06-28 01:15

NVD link : CVE-2019-8259

Mitre link : CVE-2019-8259

Products Affected
No products.
CWE
CWE-401