Comment 2 for bug 2049552

The regress test is failing when ran against -proposed for all archs (in both cases for s390x, but different issue -see next comment-), except for i386 (unmet dependencies, maybe not in the i386-white-list). From the log, the fail is the same in all archs:

1800s 21:20:13.906172151 E: run test putty-transfer.sh ...
1801s 21:20:14.536962818 O: putty transfer data: compression 0
1802s 21:20:15.670433174 O: putty transfer data: compression 1
1803s 21:20:16.693499776 O: ok putty transfer data
1803s 21:20:16.695110678 E: run test putty-ciphers.sh ...
1804s 21:20:17.585923199 O: putty ciphers: cipher aes
1804s 21:20:17.709690365 O: putty ciphers: cipher 3des
1804s 21:20:17.835865215 O: putty ciphers: cipher aes128-ctr
1804s 21:20:17.965845061 O: putty ciphers: cipher aes192-ctr
1805s 21:20:18.098941298 O: putty ciphers: cipher aes256-ctr
1805s 21:20:18.232051575 O: putty ciphers: cipher chacha20
1805s 21:20:18.278267143 E: The client-to-server cipher selected for this session is
1805s 21:20:18.279841266 E: ChaCha20-Poly1305, which, with this server, is vulnerable to
1805s 21:20:18.281237545 E: the 'Terrapin' attack CVE-2023-48795, potentially allowing
1805s 21:20:18.282623086 E: an attacker to modify the encrypted session.
1805s 21:20:18.284017245 E: Upgrading, patching, or reconfiguring this SSH server is the
1805s 21:20:18.285366255 E: best way to avoid this vulnerability, if possible.
1805s 21:20:18.286856416 E: You can also avoid this vulnerability by abandoning this
1805s 21:20:18.288221535 E: connection, moving ChaCha20 to below the 'warn below here'
1805s 21:20:18.289585505 E: line in PuTTY's SSH cipher configuration (so that an
1805s 21:20:18.291007676 E: algorithm without the vulnerability will be selected), and
1805s 21:20:18.292345334 E: starting a new connection.
1805s 21:20:18.293771875 E: Connection abandoned.
1805s 21:20:18.295117553 E: FATAL ERROR: Cannot confirm a weak crypto primitive in batch mode
1805s 21:20:18.297391166 O: ssh cat /tmp/autopkgtest.8T5BlL/autopkgtest_tmp/user/regress/data failed
1805s 21:20:18.298429901 E: cmp: EOF on /tmp/autopkgtest.8T5BlL/autopkgtest_tmp/user/regress/copy which is empty
1805s 21:20:18.317523283 O: corrupted copy
1805s 21:20:18.319527121 O: failed putty ciphers
1805s 21:20:18.319434210 E: make: *** [Makefile:247: t-exec-interop] Error 1
1805s 21:20:18.320965722 O: make: Leaving directory '/tmp/autopkgtest.8T5BlL/autopkgtest_tmp/user/regress'
1805s 21:20:18.322307881 O: ==> /tmp/autopkgtest.8T5BlL/autopkgtest_tmp/user/regress/failed-regress.log <==

It seems it doesn't like putty 0.80-1 version in proposed: regress putty-ciphers test fails with proposed putty 0.80-1, which patches Terrapin Vulnerability, when selecting chacha20