drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Mehrere Probleme in radvd
Name: |
Mehrere Probleme in radvd |
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ID: |
USN-1257-1 |
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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: |
Fr, 11. November 2011, 08:43 |
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Referenzen: |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-3601
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-3602
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-3604
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-3605 |
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Applikationen: |
radvd |
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Originalnachricht |
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========================================================================== Ubuntu Security Notice USN-1257-1 November 10, 2011
radvd vulnerabilities ==========================================================================
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:
radvd could be made to crash or overwrite certain files if it received specially crafted network traffic.
Software Description: - radvd: Router Advertisement Daemon
Details:
Vasiliy Kulikov discovered that radvd incorrectly parsed the ND_OPT_DNSSL_INFORMATION option. A remote attacker could exploit this with a specially-crafted request and cause the radvd daemon to crash, or possibly execute arbitrary code. The default compiler options for affected releases should reduce the vulnerability to a denial of service. This issue only affected Ubuntu 11.04 and 11.10. (CVE-2011-3601)
Vasiliy Kulikov discovered that radvd incorrectly filtered interface names when creating certain files. A local attacker could exploit this to overwrite certain files on the system, bypassing intended permissions. (CVE-2011-3602)
Vasiliy Kulikov discovered that radvd incorrectly handled certain lengths. A remote attacker could exploit this to cause the radvd daemon to crash, resulting in a denial of service. (CVE-2011-3604)
Vasiliy Kulikov discovered that radvd incorrectly handled delays when used in unicast mode, which is not the default in Ubuntu. If used in unicast mode, a remote attacker could cause radvd outages, resulting in a denial of service. (CVE-2011-3605)
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 11.10: radvd 1:1.8-1ubuntu0.1
Ubuntu 11.04: radvd 1:1.7-1ubuntu0.1
Ubuntu 10.10: radvd 1:1.6-1ubuntu0.1
Ubuntu 10.04 LTS: radvd 1:1.3-1.1ubuntu0.1
In general, a standard system update will make all the necessary changes.
References: http://www.ubuntu.com/usn/usn-1257-1 CVE-2011-3601, CVE-2011-3602, CVE-2011-3604, CVE-2011-3605
Package Information: https://launchpad.net/ubuntu/+source/radvd/1:1.8-1ubuntu0.1 https://launchpad.net/ubuntu/+source/radvd/1:1.7-1ubuntu0.1 https://launchpad.net/ubuntu/+source/radvd/1:1.6-1ubuntu0.1 https://launchpad.net/ubuntu/+source/radvd/1:1.3-1.1ubuntu0.1
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