Ubuntu alert USN-4730-1 (postsrsd)

From:
             
 
Paulo Flabiano Smorigo <pfsmorigo@canonical.com>
To:
             
 
ubuntu-security-announce@lists.ubuntu.com
Subject:
             
 
[USN-4730-1] PostSRSd vulnerability
Date:
             
 
Wed, 10 Feb 2021 20:26:19 -0300
Message-ID:
             
 
<20210210232619.6nkjyg7i6iinuwd5@morty>
==========================================================================
Ubuntu Security Notice USN-4730-1
February 10, 2021

postsrsd vulnerability
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 18.04 LTS

Summary:

PostSRSd could be made to crash if it received specially crafted
input.

Software Description:
- postsrsd: Sender Rewriting Scheme via TCP-based lookup tables for Postfix

Details:

It was discovered that PostSRSd mishandled certain input. A remote attacker
could use this vulnerability to cause a denial of service via a long timestamp
tag in an SRS address.

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 18.04 LTS:
  postsrsd                        1.4-1ubuntu0.1

In general, a standard system update will make all the necessary changes.

References:
  https://usn.ubuntu.com/4730-1
  CVE-2020-35573

Package Information:
  https://launchpad.net/ubuntu/+source/postsrsd/1.4-1ubuntu0.1
-- 
ubuntu-security-announce mailing list
ubuntu-security-announce@lists.ubuntu.com
Modify settings or unsubscribe at:
https://lists.ubuntu.com/mailman/listinfo/ubuntu-security...