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List: ubuntu-security-announce
Subject: [USN-4762-1] OpenSSH vulnerability
From: Marc Deslauriers <marc.deslauriers () canonical ! com>
Date: 2021-03-10 15:22:50
Message-ID: eaf346ec-b373-5882-1190-c6cee3e8a802 () canonical ! com
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==========================================================================
Ubuntu Security Notice USN-4762-1
March 10, 2021
openssh vulnerability
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 20.10
- Ubuntu 20.04 LTS
Summary:
OpenSSH could be made to crash or run programs if it received specially
crafted network traffic.
Software Description:
- openssh: secure shell (SSH) for secure access to remote machines
Details:
It was discovered that the OpenSSH ssh-agent incorrectly handled memory. A
remote attacker able to connect to the agent could use this issue to cause
it to crash, resulting in a denial of service, or possibly execute
arbitrary code.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 20.10:
openssh-client 1:8.3p1-1ubuntu0.1
Ubuntu 20.04 LTS:
openssh-client 1:8.2p1-4ubuntu0.2
In general, a standard system update will make all the necessary changes.
References:
https://ubuntu.com/security/notices/USN-4762-1
CVE-2021-28041
Package Information:
https://launchpad.net/ubuntu/+source/openssh/1:8.3p1-1ubuntu0.1
https://launchpad.net/ubuntu/+source/openssh/1:8.2p1-4ubuntu0.2
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