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cve[email protected]CVE-2020-5802
HistoryDec 29, 2020 - 4:15 p.m.

CVE-2020-5802

2020-12-2916:15:14
CWE-770
web.nvd.nist.gov
40
cve-2020-5802
factorytalk
rnadasvr.dll
memory allocation
tcp port 4241
unhandled exception
security vulnerability

5 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

0.002 Low

EPSS

Percentile

57.2%

An attacker-controlled memory allocation size can be passed to the C++ new operator in RnaDaSvr.dll by sending a specially crafted ConfigureItems message to TCP port 4241. This will cause an unhandled exception, resulting in termination of RSLinxNG.exe. Observed in FactoryTalk 6.11. All versions of FactoryTalk Linx are affected.

Affected configurations

NVD
Node
rockwellautomationfactorytalk_linxRange6.11

CNA Affected

[
  {
    "product": "Rockwell FactoryTalk Linx",
    "vendor": "n/a",
    "versions": [
      {
        "status": "affected",
        "version": "All versions of FactoryTalk Linx"
      }
    ]
  }
]

5 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

0.002 Low

EPSS

Percentile

57.2%

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