Redhat.comRH:CVE-2019-14899CVE-2019-14899
7.4 High
CVSS3
Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
4.9 Medium
CVSS2
Access Vector
ADJACENT_NETWORK
Access Complexity
MEDIUM
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:A/AC:M/Au:S/C:P/I:P/A:P
0.0005 Low
EPSS
Percentile
15.7%
A flaw was found in openvpn. A malicous access point or adjacent user can determine if a connected user is using a VPN by making positive inferences about the websites they are visiting, and determining the correct sequence and acknowledgement numbers in use, which allows the attacker to inject data into the TCP stream. With this information, an attacker could hijack an active connection inside the VPN tunnel. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
Related
7.4 High
CVSS3
Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
4.9 Medium
CVSS2
Access Vector
ADJACENT_NETWORK
Access Complexity
MEDIUM
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:A/AC:M/Au:S/C:P/I:P/A:P
0.0005 Low
EPSS
Percentile
15.7%