drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Mehrere Probleme in libpng
Name: |
Mehrere Probleme in libpng |
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ID: |
USN-2815-1 |
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Distribution: |
Ubuntu |
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Plattformen: |
Ubuntu 12.04 LTS, Ubuntu 14.04 LTS, Ubuntu 15.04, Ubuntu 15.10 |
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Datum: |
Do, 19. November 2015, 21:13 |
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Referenzen: |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-7981
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-3425
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8126 |
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Applikationen: |
libpng |
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Originalnachricht |
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========================================================================== Ubuntu Security Notice USN-2815-1 November 19, 2015
libpng vulnerabilities ==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 15.10 - Ubuntu 15.04 - Ubuntu 14.04 LTS - Ubuntu 12.04 LTS
Summary:
libpng could be made to crash or run programs as your login if it opened a specially crafted file.
Software Description: - libpng: PNG (Portable Network Graphics) file library
Details:
Mikulas Patocka discovered that libpng incorrectly handled certain large fields. If a user or automated system using libpng were tricked into opening a specially crafted image, an attacker could exploit this to cause libpng to crash, leading to a denial of service. This issue only affected Ubuntu 12.04 LTS. (CVE-2012-3425)
Qixue Xiao discovered that libpng incorrectly handled certain time values. If a user or automated system using libpng were tricked into opening a specially crafted image, an attacker could exploit this to cause libpng to crash, leading to a denial of service. (CVE-2015-7981)
It was discovered that libpng incorrectly handled certain small bit-depth values. If a user or automated system using libpng were tricked into opening a specially crafted image, an attacker could exploit this to cause a denial of service or execute code with the privileges of the user invoking the program. (CVE-2015-8126)
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 15.10: libpng12-0 1.2.51-0ubuntu3.15.10.1
Ubuntu 15.04: libpng12-0 1.2.51-0ubuntu3.15.04.1
Ubuntu 14.04 LTS: libpng12-0 1.2.50-1ubuntu2.14.04.1
Ubuntu 12.04 LTS: libpng12-0 1.2.46-3ubuntu4.1
After a standard system update you need to restart your session to make all the necessary changes.
References: http://www.ubuntu.com/usn/usn-2815-1 CVE-2012-3425, CVE-2015-7981, CVE-2015-8126
Package Information: https://launchpad.net/ubuntu/+source/libpng/1.2.51-0ubuntu3.15.10.1 https://launchpad.net/ubuntu/+source/libpng/1.2.51-0ubuntu3.15.04.1 https://launchpad.net/ubuntu/+source/libpng/1.2.50-1ubuntu2.14.04.1 https://launchpad.net/ubuntu/+source/libpng/1.2.46-3ubuntu4.1
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