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MitreCVE-2021-37592

HistoryNov 19, 2021 - 3:15 p.m.

CVE-2021-37592

2021-11-1915:15:08

CWE-787

mitre

web.nvd.nist.gov

suricata

tcp evasion

vulnerability

cve-2021-37592

nvd

security

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

9.1

Confidence

High

EPSS

0.003

Percentile

69.3%

JSON

Suricata before 5.0.8 and 6.x before 6.0.4 allows TCP evasion via a client with a crafted TCP/IP stack that can send a certain sequence of segments.

Affected configurations

Nvd

Node

oisfsuricataRange<5.0.8

oisfsuricataRange6.0.0–6.0.4

VendorProductVersionCPE
oisfsuricata*cpe:2.3:a:oisf:suricata:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
oisf	suricata	*	cpe:2.3:a:oisf:suricata::::::::

References

forum.suricata.io/t/suricata-6-0-4-and-5-0-8-released/1942

github.com/OISF/suricata/releases

redmine.openinfosecfoundation.org/issues/4569

Social References

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

9.1

Confidence

High

EPSS

0.003

Percentile

69.3%

JSON

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