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Fedora 35: FEDORA-2021-ec797b6a96 Critical: libssh Buffer Overflow

fedora
Calendar Grey September 28, 2021
Dist Fedora Esm H88
The recent Libssh 0.9.6 patch resolves CVE-2021-3634 buffer overflow issue affecting Fedora 35 environments.
Rebase to libssh-0.9.6 Fix CVE-2021-3634

Summary

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).

Rebase to libssh-0.9.6 Fix CVE-2021-3634

* Mon Sep 13 2021 Norbert Pocs - 0.9.6-1

- Fix CVE-CVE-2021-3634 libssh: possible heap-based buffer

overflow when rekeying

- Resolves: rhbz#1994600

[ 1 ] Bug #1998135 - CVE-2021-3634 libssh: possible heap-based buffer overflow when rekeying [fedora-all]

https://bugzilla.redhat.com/show_bug.cgi?id=1998135

[ 2 ] Bug #1998163 - libssh-0.9.6 is available

https://bugzilla.redhat.com/show_bug.cgi?id=1998163

su -c 'dnf upgrade --advisory FEDORA-2021-ec797b6a96' at the command

line. For more information, refer to the dnf documentation available at

https://dnf.readthedocs.io/en/latest/command_ref.html

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Change Log

References

Update Instructions

Severity
critical
Lowest
Low
Medium
High
Critical

Product: Fedora 35
Version: 0.9.6
Release: 1.fc35
URL: Summary : A library implementing the SSH protocol

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