Patch  oval:com.redhat.rhsa:def:20080297
RHSA-2008:0297: dovecot security and bug fix update (Low)  

Dovecot is an IMAP server for Linux and UNIX-like systems, primarily written with security in mind.
A flaw was discovered in the way Dovecot handled the "mail_extra_groups" option. An authenticated attacker with local shell access could leverage this flaw to read, modify, or delete other users mail that is stored on the mail server. (CVE-2008-1199)
This issue did not affect the default Red Hat Enterprise Linux 5 Dovecot configuration. This update adds two new configuration options -- "mail_privileged_group" and "mail_access_groups" -- to minimize the usage of additional privileges.
A directory traversal flaw was discovered in Dovecot's zlib plug-in. An authenticated user could use this flaw to view other compressed mailboxes with the permissions of the Dovecot process. (CVE-2007-2231)
A flaw was found in the Dovecot ACL plug-in. User with only insert permissions for a mailbox could use the "COPY" and "APPEND" commands to set additional message flags. (CVE-2007-4211)
A flaw was found in a way Dovecot cached LDAP query results in certain configurations. This could possibly allow authenticated users to log in as a different user who has the same password. (CVE-2007-6598)
As well, this updated package fixes the following bugs:
* configuring "userdb" and "passdb" to use LDAP caused Dovecot to hang. A segmentation fault may have occurred. In this updated package, using an LDAP backend for "userdb" and "passdb" no longer causes Dovecot to hang.
* the Dovecot "login_process_size" limit was configured for 32-bit systems. On 64-bit systems, when Dovecot was configured to use either IMAP or POP3, the log in processes crashed with out-of-memory errors. Errors such as the following were logged:
pop3-login: pop3-login: error while loading shared libraries: failed to map segment from shared object: Cannot allocate memory
In this updated package, the "login_process_size" limit is correctly configured on 64-bit systems, which resolves this issue.
Note: this updated package upgrades dovecot to version 1.0.7. For further details, refer to the Dovecot changelog:
Users of dovecot are advised to upgrade to this updated package, which resolves these issues.
Create Date: 2008-05-20 Last Update Date: 2008-05-21

Affected Platforms/Products

Affected Products (CPE + CVE references)
Platforms: unix (from OVAL definitions)
  • Red Hat Enterprise Linux 5



The patch should be installed
IF : Any one of the following are true
IF : Red Hat Enterprise Linux must be installed
WARNING! Unknown test oval:com.redhat.rhba:tst:20070304026. Please see help for possible reasons
IF : All of the following are true
IF : dovecot is signed with Red Hat redhatrelease key
Linux : RPM Test :  dovecot is earlier than 0:1.0.7-2.el5 
At least one of the objects listed below must exist on the system (Existence check)
Unknown object oval:com.redhat.rhsa:obj:20080297002 (Object depth limit may be exceeded) !!!
RPM Version less than 0:1.0.7-2.el5 (datatype=evr_string)
linux : rpminfo_state 
IF : dovecot is earlier than 0:1.0.7-2.el5
WARNING! Unknown test oval:com.redhat.rhsa:tst:20080297001. Please see help for possible reasons
IF : Red Hat Enterprise Linux 5 is installed
WARNING! Unknown test oval:com.redhat.rhba:tst:20070331005. Please see help for possible reasons

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