Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

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.

Published

2019-03-05T15:29:00.320

Last Modified

2024-11-21T04:49:35.510

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 9.8 (CRITICAL)

CVSSv2 Vector

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

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: PARTIAL
Availability Impact: PARTIAL

Exploitability Score

10.0

Impact Score

6.4

Weaknesses

Type: Secondary
CWE-122
Type: Primary
CWE-787

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	uvnc	ultravnc	< 1.2.2.3	Yes
Application	siemens	sinumerik_access_mymachine\/p2p	< 4.8	Yes
Application	siemens	sinumerik_pcu_base_win10_software\/ipc	< 14.00	Yes
Application	siemens	sinumerik_pcu_base_win7_software\/ipc	≤ 12.01	Yes

References

https://cert-portal.siemens.com/productcert/pdf/ssa-927095.pdf Third Party Advisory ([email protected])
https://ics-cert.kaspersky.com/advisories/klcert-advisories/2019/03/01/klcert-19-004-ultravnc-heap-based-buffer-overflow/ Third Party Advisory ([email protected])
https://www.us-cert.gov/ics/advisories/icsa-20-161-06 Third Party Advisory, US Government Resource ([email protected])
https://cert-portal.siemens.com/productcert/pdf/ssa-927095.pdf Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://ics-cert.kaspersky.com/advisories/klcert-advisories/2019/03/01/klcert-19-004-ultravnc-heap-based-buffer-overflow/ Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.us-cert.gov/ics/advisories/icsa-20-161-06 Third Party Advisory, US Government Resource (af854a3a-2127-422b-91ae-364da2661108)