drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Zwei Probleme in DHCP
Name: |
Zwei Probleme in DHCP |
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ID: |
USN-1190-1 |
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Distribution: |
Ubuntu |
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Plattformen: |
Ubuntu 8.04 LTS, Ubuntu 10.04 LTS, Ubuntu 10.10, Ubuntu 11.04 |
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Datum: |
Mo, 15. August 2011, 15:39 |
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Referenzen: |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-2748
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-2749 |
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Applikationen: |
ISC DHCP |
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Originalnachricht |
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========================================================================== Ubuntu Security Notice USN-1190-1 August 15, 2011
dhcp3, isc-dhcp vulnerabilities ==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 11.04 - Ubuntu 10.10 - Ubuntu 10.04 LTS - Ubuntu 8.04 LTS
Summary:
An attacker could send crafted input to DHCP and cause it to crash.
Software Description: - isc-dhcp: DHCP server and client - dhcp3: DHCP server and client
Details:
David Zych discovered that DHCP incorrectly handled certain malformed packets. 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 11.04: isc-dhcp-server 4.1.1-P1-15ubuntu9.1
Ubuntu 10.10: dhcp3-server 3.1.3-2ubuntu6.3
Ubuntu 10.04 LTS: dhcp3-server 3.1.3-2ubuntu3.3
Ubuntu 8.04 LTS: dhcp3-server 3.0.6.dfsg-1ubuntu9.3
In general, a standard system update will make all the necessary changes.
References: http://www.ubuntu.com/usn/usn-1190-1 CVE-2011-2748, CVE-2011-2749
Package Information: https://launchpad.net/ubuntu/+source/isc-dhcp/4.1.1-P1-15ubuntu9.1 https://launchpad.net/ubuntu/+source/dhcp3/3.1.3-2ubuntu6.3 https://launchpad.net/ubuntu/+source/dhcp3/3.1.3-2ubuntu3.3 https://launchpad.net/ubuntu/+source/dhcp3/3.0.6.dfsg-1ubuntu9.3
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