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:15164
[Eng]
Version
10
Class
patch
ALTXid
29784
Language
Russian
Severity
High
Title
Обновление DSA-2305-1 vsftpd - отказ в обслуживании
Description
Two security issue have been discovered that affect vsftpd, a lightweight, efficient FTP server written for security. CVE-2011-2189 It was discovered that Linux kernels less than 2.6.35 are considerably slower in releasing than in the creation of network namespaces. As a result of this and because vsftpd is using this feature as a security enhancement to provide network isolation for connections, it is possible to cause denial of service conditions due to excessive memory allocations by the kernel. This is technically no vsftpd flaw, but a kernel issue. However, this feature has legitimate use cases and backporting the specific kernel patch is too intrusive. Additionally, a local attacker requires the CAP_SYS_ADMIN capability to abuse this functionality. Therefore, as a fix, a kernel version check has been added to vsftpd in order to disable this feature for kernels less than 2.6.35. CVE-2011-0762 Maksymilian Arciemowicz discovered that vsftpd is incorrectly handling certain glob expressions in STAT commands. This allows a remote authenticated attacker to conduct denial of service attacks via crafted STAT commands.
Family
unix
Platform
Debian GNU/kFreeBSD 6.0
Debian GNU/Linux 5.0
Debian GNU/Linux 6.0
Product
vsftpd
Reference
VENDOR: DSA-2305-1
VENDOR: DSA-2305-1
Id:
DSA-2305-1
Reference:
http://lists.debian.org/debian-security-announce/2011/msg00186.html
CVE: CVE-2011-0762
CVE: CVE-2011-0762
Id:
CVE-2011-0762
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-0762
Comment
: The vsf_filename_passes_filter function in ls.c in vsftpd before 2.3.3 allows remote authenticated users to cause a denial of service (CPU consumption and process slot exhaustion) via crafted glob expressions in STAT commands in multiple FTP sessions, a different vulnerability than CVE-2010-2632.
CVSSv2 Score:
4
Access vector:
NETWORK
Access complexity:
LOW
Authentication:
SINGLE
Confidentiality impact:
NONE
Integrity impact:
NONE
Availability impact:
PARTIAL
CVSSv2 Vector:
AV:N/AC:L/Au:S/C:N/I:N/A:P
CWE:
400 (Uncontrolled Resource Consumption ('Resource Exhaustion'))
References:
20110301 vsftpd 2.3.2 remote denial-of-service (SREASONRES)
http://cxib.net/stuff/vspoc232.c (MISC)
ftp://vsftpd.beasts.org/users/cevans/untar/vsftpd-2.3.4/Changelog (CONFIRM)
46617 (BID)
VU#590604 (CERT-VN)
ADV-2011-0547 (VUPEN)
16270 (EXPLOIT-DB)
FEDORA-2011-2615 (FEDORA)
ADV-2011-0639 (VUPEN)
RHSA-2011:0337 (REDHAT)
FEDORA-2011-2590 (FEDORA)
FEDORA-2011-2567 (FEDORA)
ADV-2011-0668 (VUPEN)
1025186 (SECTRACK)
MDVSA-2011:049 (MANDRIVA)
ADV-2011-0713 (VUPEN)
USN-1098-1 (UBUNTU)
8109 (SREASON)
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=622741 (CONFIRM)
DSA-2305 (DEBIAN)
HPSBMU02752 (HP)
SUSE-SR:2011:009 (SUSE)
vsftpd-vsffilenamepassesfilter-dos(65873) (XF)
20110301 vsftpd 2.3.2 remote denial-of-service (BUGTRAQ)
JVN#37417423 (JVN)
CVE: CVE-2011-2189
CVE: CVE-2011-2189
Id:
CVE-2011-2189
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-2189
Comment
: net/core/net_namespace.c in the Linux kernel 2.6.32 and earlier does not properly handle a high rate of creation and cleanup of network namespaces, which makes it easier for remote attackers to cause a denial of service (memory consumption) via requests to a daemon that requires a separate namespace per connection, as demonstrated by vsftpd.
CVSSv2 Score:
7.8
Access vector:
NETWORK
Access complexity:
LOW
Authentication:
NONE
Confidentiality impact:
NONE
Integrity impact:
NONE
Availability impact:
COMPLETE
CVSSv2 Vector:
AV:N/AC:L/Au:N/C:N/I:N/A:C
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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE:
400 (Uncontrolled Resource Consumption ('Resource Exhaustion'))
References:
DSA-2305 (DEBIAN)
[oss-security] 20110606 Re: CVE Request -- vsftpd -- Do not create network namespace per connection (MLIST)
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=629373 (CONFIRM)
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/720095 (CONFIRM)
[git-commits-head] 20091208 net: Automatically allocate per namespace data. (MLIST)
https://bugzilla.redhat.com/show_bug.cgi?id=711245 (CONFIRM)
[oss-security] 20110606 Re: CVE Request -- vsftpd -- Do not create network namespace per connection (MLIST)
https://bugzilla.redhat.com/show_bug.cgi?id=711134 (CONFIRM)
http://patchwork.ozlabs.org/patch/88217/ (CONFIRM)
http://ie.archive.ubuntu.com/linux/kernel/v2.6/ChangeLog-2.6.33 (CONFIRM)
USN-1288-1 (UBUNTU)
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=f875bae065334907796da12523f9df85c89f5712 (MISC)
http://neil.brown.name/git?p=linux-2.6%3Ba=patch%3Bh=2b035b39970740722598f7a9d548835f9bdd730f (MISC)
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=2b035b39970740722598f7a9d548835f9bdd730f (MISC)
Content available only for registered users!
ovaldb@altx-soft.com