drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Denial of Service in vsftpd
Name: |
Denial of Service in vsftpd |
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ID: |
USN-1288-1 |
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Distribution: |
Ubuntu |
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Plattformen: |
Ubuntu 10.04 LTS, Ubuntu 10.10, Ubuntu 11.04, Ubuntu 11.10 |
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Datum: |
Mi, 7. Dezember 2011, 08:05 |
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Referenzen: |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-2189 |
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Applikationen: |
vsftpd |
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Originalnachricht |
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========================================================================== Ubuntu Security Notice USN-1288-1 December 07, 2011
vsftpd vulnerability ==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 11.10 - Ubuntu 11.04 - Ubuntu 10.10 - Ubuntu 10.04 LTS
Summary:
Vsftpd or other applications could be made to crash if vsftpd received specially crafted network traffic.
Software Description: - vsftpd: FTP server written for security
Details:
It was discovered that the 2.6.35 and earlier Linux kernel 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) in applications that require a separate namespace per connection, like vsftpd. This update adjusts vsftpd to only use network namespaces on kernels that are known to be not affected.
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 11.10: vsftpd 2.3.2-3ubuntu5.1
Ubuntu 11.04: vsftpd 2.3.2-3ubuntu4.1
Ubuntu 10.10: vsftpd 2.3.0~pre2-4ubuntu2.3
Ubuntu 10.04 LTS: vsftpd 2.2.2-3ubuntu6.3
In general, a standard system update will make all the necessary changes.
References: http://www.ubuntu.com/usn/usn-1288-1 CVE-2011-2189
Package Information: https://launchpad.net/ubuntu/+source/vsftpd/2.3.2-3ubuntu5.1 https://launchpad.net/ubuntu/+source/vsftpd/2.3.2-3ubuntu4.1 https://launchpad.net/ubuntu/+source/vsftpd/2.3.0~pre2-4ubuntu2.3 https://launchpad.net/ubuntu/+source/vsftpd/2.2.2-3ubuntu6.3
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