[Dovecot] segfault - (imap|pop3)-login during nessus scan
toddr at cpanel.net
Fri Feb 19 23:28:42 EET 2010
We've been struggling with a problem for the past couple of days which to this point I've only gotten to be able to boil down to this:
1. Install nessus home edition (less pluggins I assume)
2. run all scans (sequentially or in parallel, doesn't seem to matter)
3. about 3 minutes in /var/log/messages will show segfaults on imap and/or pop3
imap-login: segfault at 000000000000000c rip 0000003c7de610a2 rsp 00007fffa2342068 error 4
pop3-login: segfault at 000000000000000c rip 0000003c7de610a2 rsp 00007fff07116968 error 4
I'm having a really hard time getting a core dump and I'm having a really hard time narrowing down the list of nessus tests which cause this. So far, I have repeated this failure in 1.1.19 and 1.1.20
Additionally we've seen something similar on 1.2 and reverted back to 1.1 a year ago. At the time we could not re-produce a test case and finally gave up.
Has anyone seen something along these lines?
Can anyone recommend how I could narrow this down further so we can find the problem?
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