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MitreCVE-2019-20786

HistoryApr 19, 2020 - 8:15 p.m.

CVE-2019-20786

2020-04-1920:15:11

CWE-287

mitre

web.nvd.nist.gov

pion

dtls

conn.go

handleincomingpacket

vulnerability

nvd

cve-2019-20786

CVSS2

7.5

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

CVSS3

9.8

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

AI Score

9.3

Confidence

High

EPSS

0.013

Percentile

86.0%

JSON

handleIncomingPacket in conn.go in Pion DTLS before 1.5.2 lacks a check for application data with epoch 0, which allows remote attackers to inject arbitrary unencrypted data after handshake completion.

Affected configurations

Nvd

Node

piondtlsRange<1.5.2

VendorProductVersionCPE
piondtls*cpe:2.3:a:pion:dtls:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
pion	dtls	*	cpe:2.3:a:pion:dtls::::::::

References

github.com/pion/dtls/commit/fd73a5df2ff0e1fb6ae6a51e2777d7a16cc4f4e0

github.com/pion/dtls/compare/v1.5.1...v1.5.2

www.usenix.org/conference/usenixsecurity20/presentation/fiterau-brostean

www.usenix.org/system/files/sec20fall_fiterau-brostean_prepub.pdf

CVSS2

7.5

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

CVSS3

9.8

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

AI Score

9.3

Confidence

High

EPSS

0.013

Percentile

86.0%

JSON

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