CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
CVSS3
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
EPSS
Percentile
80.5%
The bounds check in read_key() was performed after using the value, instead of before. If ‘key-method 1’ is used, this allowed an attacker to send a malformed packet to trigger a stack buffer overflow. Note that ‘key-method 1’ has been replaced by ‘key method 2’ as the default in OpenVPN 2.0 (CVE-2017-12166).
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Mageia | 5 | noarch | openvpn | < 2.3.18-1 | openvpn-2.3.18-1.mga5 |
Mageia | 6 | noarch | openvpn | < 2.4.4-1 | openvpn-2.4.4-1.mga6 |
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
CVSS3
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
EPSS
Percentile
80.5%