bug in group permission check

[Steffen]

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krzf83 at gmail.com  wrote:
> Jul 19 01:05:27 sv1 dovecot: auth: Error: 
> passwd-file(aa at ddd,89...24,<>): 
> stat(/usr/dovecot-cfg/dom-home/ddd/etc/ddd/shadow) failed:
> Permission denied (euid=33454(dovecot) egid=33454(dovecot) missing
> +x perm: /usr/dovecot-cfg/dom-home/ddd, we're not in group
> 33795(sysgroup), dir owned by 32072:33795 mode=0710)
> 
> root at sv1 [~]# sudo -u dovecot groups dovecot sysgroup

:-) You probably didn't read for what this user is used:

http://wiki2.dovecot.org/UserIds

See Authentication process user

Do you run SELinux?

> 
> root at sv1 [~]# sudo -u dovecot cat
> /usr/dovecot-cfg/dom-home/ddd/etc/ddd/shadow <prints content of the
> file>
> 
> It seems that dovecot incorecly checks for group permissions not
> even trying to access file - probably cant handle that dovecot is
> part of more than 1 group. When its part of single group problem is
> not occuring.
> 


- -- 
Steffen
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