-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512
Format: 1.8
Date: Wed, 05 Mar 2025 17:20:35 +0100
Source: dropbear
Architecture: source
Version: 2025.87-1
Distribution: unstable
Urgency: low
Maintainer: Guilhem Moulin <guilhem@debian.org>
Changed-By: Guilhem Moulin <guilhem@debian.org>
Changes:
dropbear (2025.87-1) unstable; urgency=low
.
* New upstream release. Highlights includes:
+ Post-quantum key exchange algorithms sntrup761 and ML-KEM are now
supported.
.
+ Compression is now disabled for dropbear(8) in the client to server
direction. This avoids attack surface for zlib, and also saves 35kB
runtime RAM for the decompression context.
.
+ Due to vulnerabilities in the SHA-1 digest algorithm, dropbear(8) and
dbclient(1) are now built without support for the ‘hmac-sha1’ integrity
algorithm, ‘ssh-rsa’ key algorithm, and ‘diffie-hellman-group14-sha1’
key exchange algorithm. (The ‘diffie-hellman-group1-sha1’ key exchange
algorithm, which also uses SHA-1, has been disabled at build time for
dropbear(8) since 2018.76-1, but remains available to dbclient(1).)
.
Note that OpenSSH has disabled support for these algorithms by default
(runtime) since 8.8. There is *no need* to rotate existing RSA host or
user keys: OpenSSH has been supporting RFC8332 RSA/SHA-256/512
signatures since 7.2, and dropbear since 2020.79. However this change
might break connection to legacy servers resp. from legacy clients.
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