Denial of Service due to Exhaustion of Packet-ID counter An authenticated client can cause the server's the packet-id counter to roll over, which would lead the server process to hit an ASSERT() and . Package : openvpn Version : 2.2.1-8+deb7u4 CVE ID : CVE-2017-7479 Denial of Service due to Exhaustion of Packet-ID counter An authenticated client can cause the server's the packet-id counter to roll over, which would lead the server process to hit an ASSERT() and stop running. To make the server hit the ASSERT(), the client must first cause the server to send it 2^32 packets (at least 196GB). For Debian 7 "Wheezy", these problems have been fixed in version 2.2.1-8+deb7u4. We recommend that you upgrade your openvpn packages. Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS -- Raphaël Hertzog ◈ Debian Developer Support Debian LTS: https://www.freexian.com/lts/debian/ Learn to master Debian: https://debian-handbook.info/get/ . OpenVPN patch enhances security to prevent service interruption linked to packet-id depletion. Upgrade advised for Ubuntu 18.. Debian LTS, OpenVPN, Denial of Service, Security Update, Packet Identifiers. . Severity: Critical. LinuxSecurity.com Team
Get the latest Linux and open source security news straight to your inbox.