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Sicherheit: Denial of Service in libssh
Aktuelle Meldungen Distributionen
Name: Denial of Service in libssh
ID: FEDORA-2020-6cad41abb0
Distribution: Fedora
Plattformen: Fedora 32
Datum: Di, 28. April 2020, 07:59
Referenzen: https://bugzilla.redhat.com/show_bug.cgi?id=1822519
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-1730
Applikationen: libssh

Originalnachricht

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Fedora Update Notification
FEDORA-2020-6cad41abb0
2020-04-28 02:30:07.995133
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Name : libssh
Product : Fedora 32
Version : 0.9.4
Release : 2.fc32
URL : http://www.libssh.org
Summary : A library implementing the SSH protocol
Description :
The ssh library was designed to be used by programmers needing a working SSH
implementation by the mean of a library. The complete control of the client is
made by the programmer. With libssh, you can remotely execute programs,
transfer
files, use a secure and transparent tunnel for your remote programs. With its
Secure FTP implementation, you can play with remote files easily, without
third-party programs others than libcrypto (from openssl).

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Update Information:

Fixes CVE-2020-1730
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ChangeLog:

* Wed Apr 15 2020 Anderson Sasaki <ansasaki@redhat.com> - 0.9.4-2
- Added patch to fix returned version
* Thu Apr 9 2020 Anderson Sasaki <ansasaki@redhat.com> - 0.9.4-1
- Update to version 0.9.4
https://www.libssh.org/2020/04/09/libssh-0-9-4-and-libssh-0-8-9-security-release/
- Removed inclusion of OpenSSH server configuration file from
libssh_server.config
- Added patch to re-enable algorithms using sha1 in sshd for testing
- resolves: #1822529 - CVE-2020-1730
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References:

[ 1 ] Bug #1822519 - libssh-0.9.4 is available
https://bugzilla.redhat.com/show_bug.cgi?id=1822519
[ 2 ] Bug #1822529 - CVE-2020-1730 libssh: denial of service when handling
AES-CTR (or DES) ciphers [fedora-all]
https://bugzilla.redhat.com/show_bug.cgi?id=1822529
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This update can be installed with the "dnf" update program. Use
su -c 'dnf upgrade --advisory FEDORA-2020-6cad41abb0' at the command
line. For more information, refer to the dnf documentation available at
http://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label

All packages are signed with the Fedora Project GPG key. More details on the
GPG keys used by the Fedora Project can be found at
https://fedoraproject.org/keys
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