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EclipseCVE-2020-27222

HistoryFeb 03, 2021 - 4:15 p.m.

CVE-2020-27222

2021-02-0316:15:13

CWE-372

eclipse

web.nvd.nist.gov

eclipse

californium

cve-2020-27222

dtls

certificate

x509

rpk

dos

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

CVSS3

7.5

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

AI Score

7.3

Confidence

High

EPSS

0.001

Percentile

34.6%

JSON

In Eclipse Californium version 2.3.0 to 2.6.0, the certificate based (x509 and RPK) DTLS handshakes accidentally fails, because the DTLS server side sticks to a wrong internal state. That wrong internal state is set by a previous certificate based DTLS handshake failure with TLS parameter mismatch. The DTLS server side must be restarted to recover this. This allow clients to force a DoS.

Affected configurations

Nvd

Node

eclipsecaliforniumRange2.3.0–2.6.0

VendorProductVersionCPE
eclipsecalifornium*cpe:2.3:a:eclipse:californium:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
eclipse	californium	*	cpe:2.3:a:eclipse:californium::::::::

CNA Affected

[
  {
    "product": "Eclipse Californium",
    "vendor": "The Eclipse Foundation",
    "versions": [
      {
        "status": "affected",
        "version": "[2.3.0, 2.6.0]"
      }
    ]
  }
]

References

bugs.eclipse.org/bugs/show_bug.cgi?id=570844

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

CVSS3

7.5

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

AI Score

7.3

Confidence

High

EPSS

0.001

Percentile

34.6%

JSON

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