Your message dated Tue, 20 Jun 2023 00:27:28 +0000
with message-id <e1qbpdu-000v8n...@fasolo.debian.org>
and subject line Bug#909022: fixed in openssh 1:9.3p1-1
has caused the Debian Bug report #909022,
regarding openssh-client: Incorrect flag test in getrrsetbyname()
to be marked as done.
This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.
(NB: If you are a system administrator and have no idea what this
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immediately.)
--
909022: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=909022
Debian Bug Tracking System
Contact ow...@bugs.debian.org with problems
--- Begin Message ---
Package: openssh-client
Version: 1:7.4p1-10+deb9u4
Severity: minor
Tags: patch
I was curious about how OpenSSH does DNSSEC validation, and found the
patch that adds support for doing this with glibc (dnssec-sshfp.patch).
However, there is a minor bug in the change to getrrsetbyname(). It
validates the flags parameter with:
if ((flags & !RRSET_FORCE_EDNS0) != 0) { ... }
But this condition will always be false, because !RRSET_FORCE_EDNS0 ==
0. The "!" operator was presumably meant to be "~".
Ben.
-- System Information:
Debian Release: 9.5
APT prefers stable
APT policy: (990, 'stable'), (500, 'stable-updates'), (500,
'unstable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386, armhf
Kernel: Linux 4.9.0-7-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8),
LANGUAGE=en_GB.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
Versions of packages openssh-client depends on:
ii adduser 3.115
ii dpkg 1.18.25
ii libc6 2.24-11+deb9u3
ii libedit2 3.1-20160903-3
ii libgssapi-krb5-2 1.15-1+deb9u1
ii libselinux1 2.6-3+b3
ii libssl1.0.2 1.0.2l-2+deb9u3
ii passwd 1:4.4-4.1
ii zlib1g 1:1.2.8.dfsg-5
Versions of packages openssh-client recommends:
ii xauth 1:1.0.9-1+b2
Versions of packages openssh-client suggests:
pn keychain <none>
pn libpam-ssh <none>
pn monkeysphere <none>
pn ssh-askpass <none>
-- no debconf information
--
Ben Hutchings, Software Developer Codethink Ltd
https://www.codethink.co.uk/ Dale House, 35 Dale Street
Manchester, M1 2HF, United Kingdom
--- End Message ---
--- Begin Message ---
Source: openssh
Source-Version: 1:9.3p1-1
Done: Colin Watson <cjwat...@debian.org>
We believe that the bug you reported is fixed in the latest version of
openssh, which is due to be installed in the Debian FTP archive.
A summary of the changes between this version and the previous one is
attached.
Thank you for reporting the bug, which will now be closed. If you
have further comments please address them to 909...@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.
Debian distribution maintenance software
pp.
Colin Watson <cjwat...@debian.org> (supplier of updated openssh package)
(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing ftpmas...@ftp-master.debian.org)
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
Format: 1.8
Date: Tue, 20 Jun 2023 01:01:48 +0100
Source: openssh
Architecture: source
Version: 1:9.3p1-1
Distribution: unstable
Urgency: medium
Maintainer: Debian OpenSSH Maintainers <debian-ssh@lists.debian.org>
Changed-By: Colin Watson <cjwat...@debian.org>
Closes: 909022 959726 1001186 1033166 1033178 1034425
Changes:
openssh (1:9.3p1-1) unstable; urgency=medium
.
* Debconf translations:
- Romanian (thanks, Remus-Gabriel Chelu; closes: #1033178).
* Properly fix date of 1:3.0.2p1-2 changelog entry (closes: #1034425).
* New upstream release (https://www.openssh.com/releasenotes.html#9.3p1):
- [CVE-2023-28531] ssh-add(1): when adding smartcard keys to
ssh-agent(1) with the per-hop destination constraints (ssh-add -h ...)
added in OpenSSH 8.9, a logic error prevented the constraints from
being communicated to the agent. This resulted in the keys being added
without constraints. The common cases of non-smartcard keys and keys
without destination constraints are unaffected. This problem was
reported by Luci Stanescu (closes: #1033166).
- [SECURITY] ssh(1): Portable OpenSSH provides an implementation of the
getrrsetbyname(3) function if the standard library does not provide
it, for use by the VerifyHostKeyDNS feature. A specifically crafted
DNS response could cause this function to perform an out-of-bounds
read of adjacent stack data, but this condition does not appear to be
exploitable beyond denial-of-service to the ssh(1) client.
- ssh-keygen(1), ssh-keyscan(1): accept -Ohashalg=sha1|sha256 when
outputting SSHFP fingerprints to allow algorithm selection.
- sshd(8): add a `sshd -G` option that parses and prints the effective
configuration without attempting to load private keys and perform
other checks. This allows usage of the option before keys have been
generated and for configuration evaluation and verification by
unprivileged users.
- scp(1), sftp(1): fix progressmeter corruption on wide displays.
- ssh-add(1), ssh-keygen(1): use RSA/SHA256 when testing usability of
private keys as some systems are starting to disable RSA/SHA1 in
libcrypto.
- sftp-server(8): fix a memory leak.
- ssh(1), sshd(8), ssh-keyscan(1): remove vestigial protocol
compatibility code and simplify what's left.
- Fix a number of low-impact Coverity static analysis findings.
- ssh_config(5), sshd_config(5): mention that some options are not
first-match-wins.
- Rework logging for the regression tests. Regression tests will now
capture separate logs for each ssh and sshd invocation in a test.
- ssh(1): make `ssh -Q CASignatureAlgorithms` work as the manpage says
it should.
- ssh(1): ensure that there is a terminating newline when adding a new
entry to known_hosts.
- sshd(8): harden Linux seccomp sandbox. Move to an allowlist of
mmap(2), madvise(2) and futex(2) flags, removing some concerning
kernel attack surface.
* debian/README.Debian: Clarify that you need to restart ssh.socket after
overriding its ListenStream= option (LP: #2020560).
* debian/openssh-server.postinst: Use "sshd -G" to parse the server
configuration file (closes: #959726).
* Fix incorrect RRSET_FORCE_EDNS0 flags validation in SSHFP DNSSEC patch
(thanks, Ben Hutchings; closes: #909022).
* Always use the internal mkdtemp implementation, since it substitutes
more randomness into the template string than glibc's version (closes:
#1001186).
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