Mandriva Linux Security Advisory : dovecot (MDVSA-2010:217)

medium Nessus Plugin ID 50425

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Synopsis

The remote Mandriva Linux host is missing one or more security updates.

Description

Multiple vulnerabilities was discovered and corrected in dovecot :

Dovecot 1.2.x before 1.2.15 and 2.0.x before 2.0.beta2 grants the admin permission to the owner of each mailbox in a non-public namespace, which might allow remote authenticated users to bypass intended access restrictions by changing the ACL of a mailbox, as demonstrated by a symlinked shared mailbox (CVE-2010-3779).

Dovecot 1.2.x before 1.2.15 allows remote authenticated users to cause a denial of service (master process outage) by simultaneously disconnecting many (1) IMAP or (2) POP3 sessions (CVE-2010-3780).

The ACL plugin in Dovecot 1.2.x before 1.2.13 propagates INBOX ACLs to newly created mailboxes in certain configurations, which might allow remote attackers to read mailboxes that have unintended weak ACLs (CVE-2010-3304).

plugins/acl/acl-backend-vfile.c in Dovecot 1.2.x before 1.2.15 and 2.0.x before 2.0.5 interprets an ACL entry as a directive to add to the permissions granted by another ACL entry, instead of a directive to replace the permissions granted by another ACL entry, in certain circumstances involving the private namespace of a user, which allows remote authenticated users to bypass intended access restrictions via a request to read or modify a mailbox (CVE-2010-3706).

plugins/acl/acl-backend-vfile.c in Dovecot 1.2.x before 1.2.15 and 2.0.x before 2.0.5 interprets an ACL entry as a directive to add to the permissions granted by another ACL entry, instead of a directive to replace the permissions granted by another ACL entry, in certain circumstances involving more specific entries that occur after less specific entries, which allows remote authenticated users to bypass intended access restrictions via a request to read or modify a mailbox (CVE-2010-3707).

This advisory provides dovecot 1.2.15 which is not vulnerable to these issues

Solution

Update the affected packages.

Plugin Details

Severity: Medium

ID: 50425

File Name: mandriva_MDVSA-2010-217.nasl

Version: 1.11

Type: local

Family: Mandriva Local Security Checks

Published: 11/1/2010

Updated: 1/6/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.2

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 4.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:N

Vulnerability Information

CPE: p-cpe:/a:mandriva:linux:dovecot, p-cpe:/a:mandriva:linux:dovecot-devel, p-cpe:/a:mandriva:linux:dovecot-plugins-gssapi, p-cpe:/a:mandriva:linux:dovecot-plugins-ldap, p-cpe:/a:mandriva:linux:dovecot-plugins-managesieve, p-cpe:/a:mandriva:linux:dovecot-plugins-mysql, p-cpe:/a:mandriva:linux:dovecot-plugins-pgsql, p-cpe:/a:mandriva:linux:dovecot-plugins-sieve, p-cpe:/a:mandriva:linux:dovecot-plugins-sqlite, cpe:/o:mandriva:linux:2010.0, cpe:/o:mandriva:linux:2010.1

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/Mandrake/release, Host/Mandrake/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 10/30/2010

Reference Information

CVE: CVE-2010-3304, CVE-2010-3706, CVE-2010-3707, CVE-2010-3779, CVE-2010-3780

BID: 41964, 43690

MDVSA: 2010:217

Detections

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