Professional OVAL Repository
[Eng]
[Rus]
[Sign-In]
OVAL
Search
Categories
RedCheck
About
OVAL Definitions
OVAL Items
FSTEC Data Bank Information Security Threats
NKCKI
EOL (End Of Life)
Linux Security Advisories
Mozilla Foundation Security Advisory
IBM
VMware
Cisco
Check Point Software Technologies
Apache
Solaris
FreeBSD
Development
GitHub Enterprise
Google Chrome Security Advisories
Oracle Security Advisories
Adobe Security Advisories
OpenSSL Security Advisories
Microsoft
CVE
CWE
CPE
Latest Updates
OS ROSA
ALT Linux
Astra Linux SE 1.5
Astra Linux SE 1.6
RED OS
DSA (Debian Security Advisory) Patсh Statistics
DSA (Debian Security Advisory) Patсh Feed
DSA (Debian Security Advisory) Vulnerability Feed
DLA (Debian Security Advisory) Patсh Statistics
DLA (Debian Security Advisory) Patсh Feed
DLA (Debian Security Advisory) Vulnerability Feed
ALT Linux (Security Bulletins) Patсh Statistics
ALT Linux (Security Bulletins) Patсh Feed
ALT Linux (Security Bulletins) Vulnerability Feed
RED OS (Security Bulletins) Patсh Statistics
RED OS (Security Bulletins) Patсh Feed
RED OS (Security Bulletins) Vulnerability Feed
USN (Ubuntu Security Notice) Patсh Statistics
USN (Ubuntu Security Notice) Patсh Feed
USN (Ubuntu Security Notice) Vulnerability Feed
RHSA (RedHat Security Advisory) Patсh Statistics
RHSA (RedHat Security Advisory) Patсh Feed
RHSA (RedHat Security Advisory) Vulnerability Feed
ELSA (Oracle Linux Security Advisory) Patсh Statistics
ELSA (Oracle Linux Security Advisory) Patсh Feed
ELSA (Oracle Linux Security Advisory) Vulnerability Feed
SUSE (SUSE Security Advisories) Patсh Statistics
SUSE (SUSE Security Advisories) Patсh Feed
SUSE (SUSE Security Advisories) Vulnerability Feed
openSUSE (openSUSE Security Advisories) Patсh Statistics
openSUSE (openSUSE Security Advisories) Patсh Feed
openSUSE (openSUSE Security Advisories) Vulnerability Feed
Amazon Linux AMI (Security Bulletins) Patсh Statistics
Amazon Linux AMI (Security Bulletins) Patсh Feed
Amazon Linux AMI (Security Bulletins) Vulnerability Feed
Mageia Linux (Security Bulletins) Patсh Statistics
Mageia Linux (Security Bulletins) Patсh Feed
Mageia Linux (Security Bulletins) Vulnerability Feed
OS ROSA SX COBALT 1.0
OS ROSA DX COBALT 1.0
ROSA 7.3 (Security Advisories) Patсh Statistics
ROSA 7.3 (Security Advisories) Patсh Feed
ROSA 7.3 (Security Advisories) Vulnerability Feed
ALT Linux SPT 6.0
ALT Linux SPT 7.0
ALT 8 SP
ALT 9
RED OS Murom 7.1
RED OS Murom 7.2
IBM DB2
VMware Vulnerabilities Advisory (VMSA)
VMware vCenter Patch Advisories
VMware ESXi Patch Advisories
VMware NSX Patches
VMware NSX Vulnerabilities
VMware Photon OS 1.0 Patches
VMware Photon OS 1.0 Vulnerabilities
VMware Photon OS 2.0 Patches
VMware Photon OS 2.0 Vulnerabilities
Cisco ASA
Cisco IOS/NX-OS Advisory
Cisco NX-OS Vulnerabilities
Check Point Gaia
Apache Tomcat Advisories
Apache Tomcat Server
Apache HTTP Server
Python
Node.js
RubyGems
Qt
Microsoft Security Bulletin
Microsoft Knowledge Base Article
Microsoft SharePoint
Microsoft SharePoint Foundation 2013
Microsoft SharePoint Server 2013
Microsoft SharePoint Server 2016
About OVALdb
User manual
Pricing
Contact us
OVAL Definitions
>
OVAL Definition Details
Id
oval:ru.altx-soft.nix:def:25326
[Eng]
Version
2
Class
patch
ALTXid
160561
Language
Russian
Severity
High
Title
Обновление USN-3258-2 -- регрессия Dovecot
Description
USN-3258-1 intended to fix a vulnerability in Dovecot. Further investigation
revealed that only Dovecot versions 2.2.26 and newer were affected by the
vulnerability. Additionally, the change introduced a regression when Dovecot
was configured to use the 'dict' authentication database. This update reverts
the change. We apologize for the inconvenience.
Family
unix
Platform
Ubuntu 16.10
Ubuntu 16.04
Linux Mint 18
Product
dovecot
Reference
VENDOR: USN-3258-2
VENDOR: USN-3258-2
Id:
USN-3258-2
Reference:
http://www.ubuntu.com/usn/usn-3258-2/
CVE: CVE-2017-2669
CVE: CVE-2017-2669
Id:
CVE-2017-2669
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-2669
Comment
: Dovecot before version 2.2.29 is vulnerable to a denial of service. When 'dict' passdb and userdb were used for user authentication, the username sent by the IMAP/POP3 client was sent through var_expand() to perform %variable expansion. Sending specially crafted %variable fields could result in excessive memory usage causing the process to crash (and restart), or excessive CPU usage causing all authentications to hang.
CVSSv2 Score:
5
Access vector:
NETWORK
Access complexity:
LOW
Authentication:
NONE
Confidentiality impact:
NONE
Integrity impact:
NONE
Availability impact:
PARTIAL
CVSSv2 Vector:
AV:N/AC:L/Au:N/C:N/I:N/A:P
CVSSv3 Score:
7.5
Attack vector:
NETWORK
Attack complexity:
LOW
Privileges required:
NONE
User interaction:
NONE
Scope:
UNCHANGED
Confidentiality impact:
NONE
Integrity impact:
NONE
Availability impact:
HIGH
CVSSv3 Vector:
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE:
20 (Improper Input Validation)
References:
https://github.com/dovecot/core/commit/000030feb7a30f193197f1aab8a7b04a26b42735.patch (CONFIRM)
[dovecot-news] 20170410 v2.2.29 released (MLIST)
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2669 (CONFIRM)
[oss-security] 20170411 CVE-2017-2669: Dovecot DoS when passdb dict was used for authentication (MLIST)
DSA-3828 (DEBIAN)
97536 (BID)
Content available only for registered users!
ovaldb@altx-soft.com