[Hackbraten]

You’re not wrong. However, building from source wouldn’t have protected you against this specific backdoor. The upstream source tarball itself was compromised in a cleverly sneaky way.

[ui2RjUen875bfFA]

You might read https://www.openwall.com/lists/oss-security/2024/03/29/4

"However, building from source wouldn’t have protected you against this specific backdoor." Depends on how exactly you build from source. A generic build was not the target. Andres Freund showed that the attack was targeted against a specific type of build system.

[zamalek]

Building from git, or the github automatic tarball would have. The larger issue here is authenticating tarballs against the source.

[account42]

There is no reason to believe the exploit would have been spotted earlier had the attacker included the final part in git.