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ubuntucveUbuntu.comUB:CVE-2022-25304
HistoryAug 23, 2022 - 12:00 a.m.

CVE-2022-25304

2022-08-2300:00:00
ubuntu.com
ubuntu.com
16
vulnerability
dos attack
opcua
asyncua
unlimited chunk size
unix

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

EPSS

0.001

Percentile

46.6%

All versions of package opcua; all versions of package asyncua are
vulnerable to Denial of Service (DoS) due to a missing limitation on the
number of received chunks - per single session or in total for all
concurrent sessions. An attacker can exploit this vulnerability by sending
an unlimited number of huge chunks (e.g. 2GB each) without sending the
Final closing chunk.

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

EPSS

0.001

Percentile

46.6%