Historically, the MD5 checksums in our LFS files serve as a protection
against broken downloads, or accidentally corrupted source files.
While the sources are nowadays downloaded via HTTPS, it make sense to
beef up integrity protection for them, since transparently intercepting
TLS is believed to be feasible for more powerful actors, and the state
of the public PKI ecosystem is clearly not helping.
Therefore, this patch switches from MD5 to BLAKE2, updating all LFS
files as well as make.sh to deal with this checksum algorithm. BLAKE2 is
notably faster (and more secure) than SHA2, so the performance penalty
introduced by this patch is negligible, if noticeable at all.
In preparation of this patch, the toolchain files currently used have
been supplied with BLAKE2 checksums as well on
https://source.ipfire.org/.
Cc: Michael Tremer <michael.tremer@ipfire.org>
Signed-off-by: Peter Müller <peter.mueller@ipfire.org>
Acked-by: Michael Tremer <michael.tremeripfire.org>
Upstream commit 500b9137d0a9dd31e40f0d1effdba0aafeb94ca4 changes the
behaviour of this script in case of invalid or unresolvable FQDNs,
preventing Squid from eventually shutting down due to too many BH's per
time.
Since this allows (authenticated) users to run a DoS against the Squid
instance, it is considered to be security relevant.
Signed-off-by: Peter Müller <peter.mueller@ipfire.org>
Signed-off-by: Arne Fitzenreiter <arne_f@ipfire.org>
This package adds an ASNBL helper for detecting Fast Flux setups and
selectively announced networks (i. e. FQDNs resolving to IP addresses
not being announced by an Autonomous System) to the distribution.
Afterwards, the helper script is located at /usr/bin/asnbl-helper.py .
The second version of this patch updates squid-asnbl to upstream version
0.2.2, improving logging in case of detected Fast Flux setups.
Signed-off-by: Peter Müller <peter.mueller@ipfire.org>
Signed-off-by: Arne Fitzenreiter <arne_f@ipfire.org>
