Objavljena je revizija sigurnosne preporuke izvorne oznake USN-1197-5 u kojoj su ispravljene ranjivosti vezane uz uporabu nelegitimnih certifikata koje je izdavao DigiNotar. Zlonamjerni korisnici mogli su iskoristiti propust za izvođenje MITM napada.
Paket:
ca-certificates-java 0.x
Operacijski sustavi:
Ubuntu Linux 10.04, Ubuntu Linux 10.10, Ubuntu Linux 11.04, Ubuntu Linux 11.10
Problem:
neodgovarajuća provjera ulaznih podataka
Iskorištavanje:
lokalno/udaljeno
Posljedica:
otkrivanje osjetljivih informacija
Rješenje:
programska zakrpa proizvođača
Izvorni ID preporuke:
USN-1197-7
Izvor:
Ubuntu
Problem:
Problem se javlja zbog mogućnosti uporabe neispravnih certifikata koje je potpisalo certifikacijsko tijelo DigiNotar. Revizija je objavljena zbog izdavanja novih zakrpa za ca-certificates-java.
Posljedica:
Napadač bi mogao iskoristiti propust za izvođenje MITM (eng. man in the middle) napada.
Rješenje:
Svim se korisnicima savjetuje instalacija nadogradnje.
==========================================================================
Ubuntu Security Notice USN-1197-7
March 27, 2012
ca-certificates-java vulnerability
==========================================================================
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:
A certificate authority mis-issued fraudulent certificates.
Software Description:
- ca-certificates-java: Common CA certificates (JKS keystore)
Details:
USN-1197-5 addressed an issue in ca-certificates pertaining to the Dutch
Certificate Authority DigiNotar mis-issuing fraudulent certificates.
This update provides the corresponding update for ca-certificates-java.
Original advisory details:
It was discovered that Dutch Certificate Authority DigiNotar had
mis-issued multiple fraudulent certificates. These certificates could allow
an attacker to perform a "man in the middle" (MITM) attack which would make
the user believe their connection is secure, but is actually being
monitored.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 11.10:
ca-certificates-java 20110912ubuntu3.1
Ubuntu 11.04:
ca-certificates-java 20100412ubuntu0.11.04.1
Ubuntu 10.10:
ca-certificates-java 20100412ubuntu0.10.10.1
Ubuntu 10.04 LTS:
ca-certificates-java 20100406ubuntu1.1
After a standard system update you need to restart any application using
ca-certificates-java to make all the necessary changes.
References:
http://www.ubuntu.com/usn/usn-1197-7
http://www.ubuntu.com/usn/usn-1197-1
https://launchpad.net/bugs/920758
Package Information:
https://launchpad.net/ubuntu/+source/ca-certificates-java/20110912ubuntu3.1
https://launchpad.net/ubuntu/+source/ca-certificates-java/20100412ubuntu0.11.04.1
https://launchpad.net/ubuntu/+source/ca-certificates-java/20100412ubuntu0.10.10.1
https://launchpad.net/ubuntu/+source/ca-certificates-java/20100406ubuntu1.1
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