IPFire 2.21 – Core Update 123 – a house-keeping release
with a large number of fixes and some fixes for security vulnerabilities.
This release ships a large number of microcode updates for various processors (linux-firmware
30.7.2018, intel-microcode 20180807). Most notable, vulnerabilities in Intel processors might
have been fixed or mitigations applied. Microcodes are now also being loaded into the processor
earlier to avoid any attacks on the system at boot time.
This update also comes with a large number of smaller changes that improve security and fix bugs:
* OpenSSL has been updated to versions 1.1.0i and for legacy applications version 1.0.2p
(CVE-2018-0732 and CVE-2018-0737)
* IPsec now supports ChaCha20/Poly1305 for encryption
* It also allows to configure a connection to passively wait until a peer initiates it. This
is helpful in some environments where one peer is behind NAT.
* Creating Diffie-Hellman keys with length of 1024 bits is no longer possible because they
are considered insecure and not being supported by OpenVPN any more
* There is better warnings about this and other cryptographic issues on the web user interface
* Intrusion Detection
* Links in the log files have been fixed to open the correct page with details about
a certain attack
* Downloads of rulesets properly validate any TLS certificates
* The /proc filesystem has been hardened so that no kernel pointers are being exposed any more
* nss-myhostname is now being used to dynamically determine the hostname of the IPFire
system. Before /etc/hosts was changed which is no longer required.
* collectd: The cpufreq plugin has been fixed
* Generating a backup ISO file has been fixed
* Updated packages: apache 2.4.34, conntrack-tools 1.4.5, coreutils 8.29, fireinfo,
gnupg 1.4.23, iana-etc 2.30, iptables 1.6.2, libgcrypt 1.8.3, libnetfilter_conntrack 1.0.7,
libstatgrab 0.91, multipath-tools 0.7.7, openvpn 2.4.6, postfix 3.2.6, rng-tools 6.3.1,
smartmontools 6.6, squid 3.5.28, strongswan 5.6.3, tzdata 2018e, unbound 1.7.3
* Support for owncloud has been removed from guardian (version 2.0.2)
* Updates: clamav 0.100.1, fping 4.0, hplip 3.18.6, ipset 6.38, lynis 2.6.4, mtr 0.92,
nginx 1.15.1, tmux 2.7, tor 0.3.3.9
* avahi has been brought back in version 0.7 as it is required as a dependency by cups
which has been fixed to automatically find any printers on the local network automatically
* asterisk is now compiled with any optimisation for the build system which was accidentally
enabled by the asterisk build system
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