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AUSCERT External Security Bulletin Redistribution
USN-4730-1: PostSRSd vulnerability
11 February 2021
AusCERT Security Bulletin Summary
Operating System: Ubuntu
Impact/Access: Denial of Service -- Remote/Unauthenticated
CVE Names: CVE-2020-35573
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SN-4730-1: PostSRSd vulnerability
10 February 2021
PostSRSd could be made to crash if it received specially crafted
o Ubuntu 18.04 LTS
o postsrsd - Sender Rewriting Scheme via TCP-based lookup tables for Postfix
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.
The problem can be corrected by updating your system to the following package
o postsrsd - 1.4-1ubuntu0.1
In general, a standard system update will make all the necessary changes.
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