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[email protected]CVE-2019-8258

HistoryMar 05, 2019 - 3:29 p.m.

CVE-2019-8258

2019-03-0515:29:00

CWE-787

CWE-122

[email protected]

web.nvd.nist.gov

ultravnc

revision 1198

heap buffer overflow

vulnerability

code execution

network connectivity

nvd

7.5 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

9.7 High

AI Score

Confidence

High

0.022 Low

EPSS

Percentile

89.6%

JSON

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.

Affected configurations

NVD

Node

uvncultravncRange<1.2.2.3

Node

siemenssinumerik_access_mymachine\/p2pRange<4.8

siemenssinumerik_pcu_base_win10_software\/ipcRange<14.00

siemenssinumerik_pcu_base_win7_software\/ipcRange≤12.01

CPENameOperatorVersion
uvnc:ultravncuvnc ultravnclt1.2.2.3

CPE	Name	Operator	Version
uvnc:ultravnc	uvnc ultravnc	lt	1.2.2.3

CNA Affected

[
  {
    "product": "UltraVNC",
    "vendor": "UltraVNC",
    "versions": [
      {
        "status": "affected",
        "version": "1.2.2.3"
      }
    ]
  }
]

References

cert-portal.siemens.com/productcert/pdf/ssa-927095.pdf

ics-cert.kaspersky.com/advisories/klcert-advisories/2019/03/01/klcert-19-004-ultravnc-heap-based-buffer-overflow/

www.us-cert.gov/ics/advisories/icsa-20-161-06

7.5 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

9.7 High

AI Score

Confidence

High

0.022 Low

EPSS

Percentile

89.6%

JSON

Related for CVE-2019-8258

cvelist1 nvd1 prion1 ics1