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Date: Thu, 18 Apr 2024 08:11:24 +0800
From: Matt Johnston <matt@....asn.au>
To: oss-security@...ts.openwall.com
Subject: Re: backdoor in upstream xz/liblzma leading to ssh
server compromise
On 2024-04-17 10:25 am, Jacob Bachmeyer wrote:
> see that particular slowdown? (Not the backdoor initialization making
> sshd take longer to start up---a running sshd taking longer to reject
> a session for a nonexistent account, unless Andres Freund forgot to
> tell us that he was running sshd from inetd and thereby including sshd
> startup latency in his measurements.)
Recent OpenSSH always re-execs for each incoming connection (for fresh
ASLR) so it's always similar to inetd startup.
Cheers,
Matt
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