AmazonALAS-2020-1410Medium: openvpn
3.7 Low
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
4.3 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:N/I:N/A:P
0.005 Low
EPSS
Percentile
76.4%
Issue Overview:
This security issue is quite hard to abuse, requiring a fairly precise timing attack combined with guessing a just assigned peer-id reference. If successful, only a single client just initiating a new connection will experience a denial of service situation.(CVE-2020-11810)
Affected Packages:
openvpn
Issue Correction:
Run yum update openvpn to update your system.
New Packages:
i686:
openvpn-devel-2.4.9-1.23.amzn1.i686
openvpn-debuginfo-2.4.9-1.23.amzn1.i686
openvpn-2.4.9-1.23.amzn1.i686
src:
openvpn-2.4.9-1.23.amzn1.src
x86_64:
openvpn-debuginfo-2.4.9-1.23.amzn1.x86_64
openvpn-devel-2.4.9-1.23.amzn1.x86_64
openvpn-2.4.9-1.23.amzn1.x86_64
Additional References
Red Hat: CVE-2020-11810
Mitre: CVE-2020-11810
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| Amazon Linux | 1 | i686 | openvpn-devel | < 2.4.9-1.23.amzn1 | openvpn-devel-2.4.9-1.23.amzn1.i686.rpm |
| Amazon Linux | 1 | i686 | openvpn-debuginfo | < 2.4.9-1.23.amzn1 | openvpn-debuginfo-2.4.9-1.23.amzn1.i686.rpm |
| Amazon Linux | 1 | i686 | openvpn | < 2.4.9-1.23.amzn1 | openvpn-2.4.9-1.23.amzn1.i686.rpm |
| Amazon Linux | 1 | x86_64 | openvpn-debuginfo | < 2.4.9-1.23.amzn1 | openvpn-debuginfo-2.4.9-1.23.amzn1.x86_64.rpm |
| Amazon Linux | 1 | x86_64 | openvpn-devel | < 2.4.9-1.23.amzn1 | openvpn-devel-2.4.9-1.23.amzn1.x86_64.rpm |
| Amazon Linux | 1 | x86_64 | openvpn | < 2.4.9-1.23.amzn1 | openvpn-2.4.9-1.23.amzn1.x86_64.rpm |
Related
3.7 Low
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
4.3 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:N/I:N/A:P
0.005 Low
EPSS
Percentile
76.4%