Man-in-the-Middle (MitM) Affecting linux-qemu-6.18 package, versions <6.18.10-r0


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.05% (16th percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-LINUXQEMU618-15044069
  • published21 Jan 2026
  • disclosed11 Dec 2019

Introduced: 11 Dec 2019

CVE-2019-14899  (opens in a new tab)
CWE-300  (opens in a new tab)

How to fix?

Upgrade Chainguard linux-qemu-6.18 to version 6.18.10-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream linux-qemu-6.18 package and not the linux-qemu-6.18 package as distributed by Chainguard. See How to fix? for Chainguard relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1