========================================================================== 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
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