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Scientific Linux Security Update : dovecot on SL5.x i386/x86_64
medium Nessus Plugin ID 60404
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Synopsis
The remote Scientific Linux host is missing a security update.Description
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:
libsepol.so.1: 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:
http://koji.fedoraproject.org/koji/buildinfo?buildID=23397
Solution
Update the affected dovecot package.See Also
Plugin Details
Severity: Medium
ID: 60404
File Name: sl_20080521_dovecot_on_SL5_x.nasl
Version: 1.7
Type: local
Agent: unix
Published: 8/1/2012
Updated: 1/14/2021
Supported Sensors: Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 5.9
CVSS v2
Risk Factor: Medium
Base Score: 6.8
Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P
Vulnerability Information
CPE: x-cpe:/o:fermilab:scientific_linux
Required KB Items: Host/local_checks_enabled, Host/cpu, Host/RedHat/release, Host/RedHat/rpm-list
Patch Publication Date: 5/21/2008
Reference Information
CVE: CVE-2007-2231, CVE-2007-4211, CVE-2007-6598, CVE-2008-1199