5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
0.017 Low
EPSS
Percentile
87.8%
Issue Overview:
OpenVPN versions before 2.4.3 and before 2.3.17 are vulnerable to remote denial-of-service when receiving malformed IPv6 packet. (CVE-2017-7508)
OpenVPN versions before 2.4.3 and before 2.3.17 are vulnerable to denial-of-service by authenticated remote attacker via sending a certificate with an embedded NULL character. (CVE-2017-7522)
OpenVPN versions before 2.4.3 and before 2.3.17 are vulnerable to remote denial-of-service due to memory exhaustion caused by memory leaks and double-free issue in extract_x509_extension(). (CVE-2017-7521)
OpenVPN versions before 2.4.3 and before 2.3.17 are vulnerable to denial-of-service and/or possibly sensitive memory leak triggered by man-in-the-middle attacker. (CVE-2017-7520)
Affected Packages:
openvpn
Issue Correction:
Run yum update openvpn to update your system.
New Packages:
i686:
openvpn-devel-2.4.3-1.19.amzn1.i686
openvpn-debuginfo-2.4.3-1.19.amzn1.i686
openvpn-2.4.3-1.19.amzn1.i686
src:
openvpn-2.4.3-1.19.amzn1.src
x86_64:
openvpn-2.4.3-1.19.amzn1.x86_64
openvpn-debuginfo-2.4.3-1.19.amzn1.x86_64
openvpn-devel-2.4.3-1.19.amzn1.x86_64
Red Hat: CVE-2017-7508, CVE-2017-7520, CVE-2017-7521, CVE-2017-7522
Mitre: CVE-2017-7508, CVE-2017-7520, CVE-2017-7521, CVE-2017-7522
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Amazon Linux | 1 | i686 | openvpn-devel | < 2.4.3-1.19.amzn1 | openvpn-devel-2.4.3-1.19.amzn1.i686.rpm |
Amazon Linux | 1 | i686 | openvpn-debuginfo | < 2.4.3-1.19.amzn1 | openvpn-debuginfo-2.4.3-1.19.amzn1.i686.rpm |
Amazon Linux | 1 | i686 | openvpn | < 2.4.3-1.19.amzn1 | openvpn-2.4.3-1.19.amzn1.i686.rpm |
Amazon Linux | 1 | x86_64 | openvpn | < 2.4.3-1.19.amzn1 | openvpn-2.4.3-1.19.amzn1.x86_64.rpm |
Amazon Linux | 1 | x86_64 | openvpn-debuginfo | < 2.4.3-1.19.amzn1 | openvpn-debuginfo-2.4.3-1.19.amzn1.x86_64.rpm |
Amazon Linux | 1 | x86_64 | openvpn-devel | < 2.4.3-1.19.amzn1 | openvpn-devel-2.4.3-1.19.amzn1.x86_64.rpm |
5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
0.017 Low
EPSS
Percentile
87.8%