U programskom paketu libmodplug otkrivene su dvije sigurnosne ranjivosti koje je moguće iskoristiti za napad uskraćivanjem usluga (DoS napad) i pokretanje proizvoljnog programskog koda.
Paket:
libmodplug 0.8.x
Operacijski sustavi:
Ubuntu Linux 10.04, Ubuntu Linux 10.10, Ubuntu Linux 11.04
Obje ranjivosti se očituju kao preljev međuspremnika pri obradi posebno oblikovanih S3M i ABC datoteka.
Posljedica:
Udaljeni napadač može iskoristiti ranjivosti podmetanjem posebno oblikovane S3M ili ABC datoteke, a uspješan napad rezultira rušenjem aplikacije te izvršavanjem proizvoljnog programskog koda.
Rješenje:
Korisnicima se savjetuje korištenje službenih programskih zakrpi koje otklanjaju opisane ranjivosti.
==========================================================================
Ubuntu Security Notice USN-1148-1
June 13, 2011
libmodplug vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 11.04
- Ubuntu 10.10
- Ubuntu 10.04 LTS
Summary:
libmodplug could be made to run programs as your login if it opened a
specially crafted file.
Software Description:
- libmodplug: Library for mod music based on ModPlug
Details:
It was discovered that libmodplug did not correctly handle certain
malformed S3M media files. If a user or automated system were tricked into
opening a crafted S3M file, an attacker could cause a denial of service or
possibly execute arbitrary code with privileges of the user invoking the
program. (CVE-2011-1574)
It was discovered that libmodplug did not correctly handle certain
malformed ABC media files. If a user or automated system were tricked into
opening a crafted ABC file, an attacker could cause a denial of service or
possibly execute arbitrary code with privileges of the user invoking the
program. (CVE-2011-1761)
The default compiler options for affected releases should reduce the
vulnerability to a denial of service.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 11.04:
libmodplug1 1:0.8.8.1-2ubuntu0.2
Ubuntu 10.10:
libmodplug1 1:0.8.8.1-1ubuntu1.2
Ubuntu 10.04 LTS:
libmodplug0c2 1:0.8.7-1ubuntu0.2
In general, a standard system update will make all the necessary changes.
References:
CVE-2011-1574, CVE-2011-1761
Package Information:
https://launchpad.net/ubuntu/+source/libmodplug/1:0.8.8.1-2ubuntu0.2
https://launchpad.net/ubuntu/+source/libmodplug/1:0.8.8.1-1ubuntu1.2
https://launchpad.net/ubuntu/+source/libmodplug/1:0.8.7-1ubuntu0.2
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