drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Mehrere Probleme in libxml2
Name: |
Mehrere Probleme in libxml2 |
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ID: |
USN-1334-1 |
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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, Ubuntu 11.10 |
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Datum: |
Do, 19. Januar 2012, 22:20 |
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Referenzen: |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-0216
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-2821
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-2834
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-3905
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-3919 |
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Applikationen: |
libxml2 |
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Originalnachricht |
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========================================================================== Ubuntu Security Notice USN-1334-1 January 19, 2012
libxml2 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 - Ubuntu 8.04 LTS
Summary:
Applications using libxml2 could be made to crash or run programs as your login if they opened a specially crafted file.
Software Description: - libxml2: GNOME XML library
Details:
It was discovered that libxml2 contained an off by one error. If a user or application linked against libxml2 were tricked into opening a specially crafted XML file, an attacker could cause the application to crash or possibly execute arbitrary code with the privileges of the user invoking the program. (CVE-2011-0216)
It was discovered that libxml2 is vulnerable to double-free conditions when parsing certain XML documents. This could allow a remote attacker to cause a denial of service. (CVE-2011-2821, CVE-2011-2834)
It was discovered that libxml2 did not properly detect end of file when parsing certain XML documents. An attacker could exploit this to crash applications linked against libxml2. (CVE-2011-3905)
It was discovered that libxml2 did not properly decode entity references with long names. If a user or application linked against libxml2 were tricked into opening a specially crafted XML file, an attacker could cause the application to crash or possibly execute arbitrary code with the privileges of the user invoking the program. (CVE-2011-3919)
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 11.10: libxml2 2.7.8.dfsg-4ubuntu0.1
Ubuntu 11.04: libxml2 2.7.8.dfsg-2ubuntu0.2
Ubuntu 10.10: libxml2 2.7.7.dfsg-4ubuntu0.3
Ubuntu 10.04 LTS: libxml2 2.7.6.dfsg-1ubuntu1.3
Ubuntu 8.04 LTS: libxml2 2.6.31.dfsg-2ubuntu1.7
After a standard system update you need to reboot your computer to make all the necessary changes.
References: http://www.ubuntu.com/usn/usn-1334-1 CVE-2011-0216, CVE-2011-2821, CVE-2011-2834, CVE-2011-3905, CVE-2011-3919
Package Information: https://launchpad.net/ubuntu/+source/libxml2/2.7.8.dfsg-4ubuntu0.1 https://launchpad.net/ubuntu/+source/libxml2/2.7.8.dfsg-2ubuntu0.2 https://launchpad.net/ubuntu/+source/libxml2/2.7.7.dfsg-4ubuntu0.3 https://launchpad.net/ubuntu/+source/libxml2/2.7.6.dfsg-1ubuntu1.3 https://launchpad.net/ubuntu/+source/libxml2/2.6.31.dfsg-2ubuntu1.7
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