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8f4df0f8e6
dns/dnsmasq: security update to 2.83 CHANGELOG of version 2.83: Use the values of --min-port and --max-port in outgoing TCP connections to upstream DNS servers. Fix a remote buffer overflow problem in the DNSSEC code. Any dnsmasq with DNSSEC compiled in and enabled is vulnerable to this, referenced by CVE-2020-25681, CVE-2020-25682, CVE-2020-25683 CVE-2020-25687. Be sure to only accept UDP DNS query replies at the address from which the query was originated. This keeps as much entropy in the {query-ID, random-port} tuple as possible, to help defeat cache poisoning attacks. Refer: CVE-2020-25684. Use the SHA-256 hash function to verify that DNS answers received are for the questions originally asked. This replaces the slightly insecure SHA-1 (when compiled with DNSSEC) or the very insecure CRC32 (otherwise). Refer: CVE-2020-25685. Handle multiple identical near simultaneous DNS queries better. Previously, such queries would all be forwarded independently. This is, in theory, inefficent but in practise not a problem, _except_ that is means that an answer for any of the forwarded queries will be accepted and cached. An attacker can send a query multiple times, and for each repeat, another {port, ID} becomes capable of accepting the answer he is sending in the blind, to random IDs and ports. The chance of a succesful attack is therefore multiplied by the number of repeats of the query. The new behaviour detects repeated queries and merely stores the clients sending repeats so that when the first query completes, the answer can be sent to all the clients who asked. Refer: CVE-2020-25686. Security: 5b5cf6e5-5b51-11eb-95ac-7f9491278677 Security: CVE-2020-25684 Security: CVE-2020-25685 Security: CVE-2020-25686 Security: CVE-2020-25681 Security: CVE-2020-25682 Security: CVE-2020-25683 Security: CVE-2020-25687 |
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accessibility | ||
arabic | ||
archivers | ||
astro | ||
audio | ||
base | ||
benchmarks | ||
biology | ||
cad | ||
chinese | ||
comms | ||
converters | ||
databases | ||
deskutils | ||
devel | ||
dns | ||
editors | ||
emulators | ||
finance | ||
french | ||
ftp | ||
games | ||
german | ||
graphics | ||
hebrew | ||
hungarian | ||
irc | ||
japanese | ||
java | ||
Keywords | ||
korean | ||
lang | ||
math | ||
misc | ||
Mk | ||
multimedia | ||
net | ||
net-im | ||
net-mgmt | ||
net-p2p | ||
news | ||
polish | ||
ports-mgmt | ||
portuguese | ||
russian | ||
science | ||
security | ||
shells | ||
sysutils | ||
Templates | ||
textproc | ||
Tools | ||
ukrainian | ||
vietnamese | ||
www | ||
x11 | ||
x11-clocks | ||
x11-drivers | ||
x11-fm | ||
x11-fonts | ||
x11-servers | ||
x11-themes | ||
x11-toolkits | ||
x11-wm | ||
.arcconfig | ||
.gitattributes | ||
.gitauthors | ||
.gitignore | ||
.gitmessage | ||
CHANGES | ||
CONTRIBUTING.md | ||
COPYRIGHT | ||
GIDs | ||
LEGAL | ||
Makefile | ||
MOVED | ||
README | ||
UIDs | ||
UPDATING |
This is the FreeBSD Ports Collection. For an easy to use WEB-based interface to it, please see: https://www.FreeBSD.org/ports For general information on the Ports Collection, please see the FreeBSD Handbook ports section which is available from: https://www.FreeBSD.org/doc/en_US.ISO8859-1/books/handbook/ports.html for the latest official version or: The ports(7) manual page (man ports). These will explain how to use ports and packages. If you would like to search for a port, you can do so easily by saying (in /usr/ports): make search name="<name>" or: make search key="<keyword>" which will generate a list of all ports matching <name> or <keyword>. make search also supports wildcards, such as: make search name="gtk*" For information about contributing to FreeBSD ports, please see the Porter's Handbook, available at: https://www.FreeBSD.org/doc/en_US.ISO8859-1/books/porters-handbook/ NOTE: This tree will GROW significantly in size during normal usage! The distribution tar files can and do accumulate in /usr/ports/distfiles, and the individual ports will also use up lots of space in their work subdirectories unless you remember to "make clean" after you're done building a given port. /usr/ports/distfiles can also be periodically cleaned without ill-effect.