drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Denial of Service in DHCP
Name: |
Denial of Service in DHCP |
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ID: |
USN-1309-1 |
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Distribution: |
Ubuntu |
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Plattformen: |
Ubuntu 11.04, Ubuntu 11.10 |
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Datum: |
Do, 15. Dezember 2011, 22:36 |
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Referenzen: |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-4539 |
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Applikationen: |
ISC DHCP |
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Originalnachricht |
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========================================================================== Ubuntu Security Notice USN-1309-1 December 15, 2011
isc-dhcp vulnerability ==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 11.10 - Ubuntu 11.04
Summary:
DHCP could be made to crash if it received specially crafted network traffic.
Software Description: - isc-dhcp: DHCP server and client
Details:
It was discovered that the DHCP server incorrectly handled certain malformed packets when configured to evaluate regular expressions. A remote attacker could use this issue to cause DHCP to crash, resulting in a denial of service.
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 11.10: isc-dhcp-server 4.1.1-P1-17ubuntu10.1
Ubuntu 11.04: isc-dhcp-server 4.1.1-P1-15ubuntu9.3
In general, a standard system update will make all the necessary changes.
References: http://www.ubuntu.com/usn/usn-1309-1 CVE-2011-4539
Package Information: https://launchpad.net/ubuntu/+source/isc-dhcp/4.1.1-P1-17ubuntu10.1 https://launchpad.net/ubuntu/+source/isc-dhcp/4.1.1-P1-15ubuntu9.3
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