Vulnerability Details CVE-2019-8258
UltraVNC revision 1198 has a heap buffer overflow vulnerability in VNC client code which results code execution. This attack appears to be exploitable via network connectivity. This vulnerability has been fixed in revision 1199.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.046
EPSS Ranking 88.8%
CVSS Severity
CVSS v3 Score 9.8
CVSS v2 Score 7.5
References
- https://cert-portal.siemens.com/productcert/pdf/ssa-927095.pdf
- https://ics-cert.kaspersky.com/advisories/klcert-advisories/2019/03/01/klcert-19-004-ultravnc-heap-based-buffer-overflow/
- https://www.us-cert.gov/ics/advisories/icsa-20-161-06
- https://cert-portal.siemens.com/productcert/pdf/ssa-927095.pdf
- https://ics-cert.kaspersky.com/advisories/klcert-advisories/2019/03/01/klcert-19-004-ultravnc-heap-based-buffer-overflow/
- https://www.us-cert.gov/ics/advisories/icsa-20-161-06
Products affected by CVE-2019-8258
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cpe:2.3:a:siemens:sinumerik_access_mymachine/p2p:-
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cpe:2.3:a:siemens:sinumerik_pcu_base_win10_software/ipc:-
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cpe:2.3:a:siemens:sinumerik_pcu_base_win7_software/ipc:-
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cpe:2.3:a:siemens:sinumerik_pcu_base_win7_software/ipc:12.01
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cpe:2.3:a:uvnc:ultravnc:1.0.9.6.2
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cpe:2.3:a:uvnc:ultravnc:1.1.8.9
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cpe:2.3:a:uvnc:ultravnc:1.1.9.3
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cpe:2.3:a:uvnc:ultravnc:1.1.9.6
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cpe:2.3:a:uvnc:ultravnc:1.2.0.5
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cpe:2.3:a:uvnc:ultravnc:1.2.0.9
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cpe:2.3:a:uvnc:ultravnc:1.2.1.0
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cpe:2.3:a:uvnc:ultravnc:1.2.1.2
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cpe:2.3:a:uvnc:ultravnc:1.2.1.6
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cpe:2.3:a:uvnc:ultravnc:1.2.1.7
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cpe:2.3:a:uvnc:ultravnc:1.2.2.2