CVE-2019-14899

Description

A vulnerability was discovered in Linux, FreeBSD, OpenBSD, MacOS, iOS, and Android that allows a malicious access point, or an adjacent user, to determine if a connected user is using a VPN, make positive inferences about the websites they are visiting, and determine the correct sequence and acknowledgement numbers in use, allowing the bad actor to inject data into the TCP stream. This provides everything that is needed for an attacker to hijack active connections inside the VPN tunnel.

Category

7.4
CVSS
Severity: High
CVSS 3.1 •
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.06%
Third-Party Advisory seclists.org Third-Party Advisory seclists.org Third-Party Advisory seclists.org Third-Party Advisory seclists.org Third-Party Advisory seclists.org Third-Party Advisory openwall.com Third-Party Advisory openwall.com Third-Party Advisory openwall.com Third-Party Advisory redhat.com Third-Party Advisory openvpn.net Third-Party Advisory apple.com Third-Party Advisory apple.com Third-Party Advisory apple.com Third-Party Advisory apple.com Third-Party Advisory apple.com
Affected: Red Hat VPN
Published at:
Updated at:

References

Link Tags
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14899 issue tracking third party advisory
https://openvpn.net/security-advisory/no-flaws-found-in-openvpn-software/ third party advisory
https://support.apple.com/kb/HT211288 third party advisory
https://support.apple.com/kb/HT211290 third party advisory
https://support.apple.com/kb/HT211289 third party advisory
http://seclists.org/fulldisclosure/2020/Jul/25 third party advisory mailing list
http://seclists.org/fulldisclosure/2020/Jul/24 third party advisory mailing list
http://seclists.org/fulldisclosure/2020/Jul/23 third party advisory mailing list
http://www.openwall.com/lists/oss-security/2020/08/13/2 third party advisory mailing list
https://support.apple.com/kb/HT211850 third party advisory
http://www.openwall.com/lists/oss-security/2020/10/07/3 third party advisory mailing list
https://support.apple.com/kb/HT211931 third party advisory
http://seclists.org/fulldisclosure/2020/Nov/20 third party advisory mailing list
http://seclists.org/fulldisclosure/2020/Dec/32 third party advisory mailing list
http://www.openwall.com/lists/oss-security/2021/07/05/1 third party advisory mailing list

Frequently Asked Questions

What is the severity of CVE-2019-14899?
CVE-2019-14899 has been scored as a high severity vulnerability.
How to fix CVE-2019-14899?
To fix CVE-2019-14899, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2019-14899 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2019-14899 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2019-14899?
CVE-2019-14899 affects Red Hat VPN.
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