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ubuntucveUbuntu.comUB:CVE-2023-46849
HistoryNov 15, 2023 - 12:00 a.m.

CVE-2023-46849

2023-11-1500:00:00
ubuntu.com
ubuntu.com
10
openvpn vulnerability
application crash
denial of service
divide by zero
configuration setup

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

6.5 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

21.1%

Using the --fragment option in certain configuration setups OpenVPN version
2.6.0 to 2.6.6 allows an attacker to trigger a divide by zero behaviour
which could cause an application crash, leading to a denial of service.

Bugs

Notes

Author Note
mdeslaur 2.6.0+ only
OSVersionArchitecturePackageVersionFilename
ubuntu23.04noarchopenvpn< 2.6.1-1ubuntu1.1UNKNOWN
ubuntu23.10noarchopenvpn< 2.6.5-0ubuntu1.1UNKNOWN

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

6.5 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

21.1%