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Ubuntu
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Ubuntu: Firefox vulnerabilities  02 July 2008 
Posted by Benjamin D. Thomas   
Various flaws were discovered in the browser engine. By tricking a user into opening a malicious web page, an attacker could cause a denial of service via application crash, or possibly execute arbitrary code with the privileges of the user invoking the program. (CVE-2008-2798, CVE-2008-2799)
 
Ubuntu: Samba regression  30 June 2008 
Posted by Benjamin D. Thomas   
Samba developers discovered that nmbd could be made to overrun a buffer during the processing of GETDC logon server requests. When samba is configured as a Primary or Backup Domain Controller, a remote attacker could send malicious logon requests and possibly cause a denial of service. (CVE-2007-4572)
 
Ubuntu: Ruby vulnerabilities  26 June 2008 
Posted by Benjamin D. Thomas   
Drew Yao discovered several vulnerabilities in Ruby which lead to integer overflows. If a user or automated system were tricked into running a malicious script, an attacker could cause a denial of service or execute arbitrary code with the privileges of the user invoking the program.
 
Ubuntu: OpenSSL vulnerabilities  26 June 2008 
Posted by Benjamin D. Thomas   
It was discovered that OpenSSL was vulnerable to a double-free when using TLS server extensions. A remote attacker could send a crafted packet and cause a denial of service via application crash in applications linked against OpenSSL. Ubuntu 8.04 LTS does not compile TLS server extensions by default. (CVE-2008-0891) It was discovered that OpenSSL could dereference a NULL pointer. If a user or automated system were tricked into connecting to a malicious server with particular cipher suites, a remote attacker could cause a denial of service via application crash. (CVE-2008-1672)
 
Ubuntu: Linux kernel vulnerabilities  19 June 2008 
Posted by Benjamin D. Thomas   
It was discovered that the ALSA /proc interface did not write the correct number of bytes when reporting memory allocations. A local attacker might be able to access sensitive kernel memory, leading to a loss of privacy. (CVE-2007-4571)
 
Ubuntu: openssl-blacklist update  18 June 2008 
Posted by Benjamin D. Thomas   
A weakness has been discovered in the random number generator used by OpenSSL on Debian and Ubuntu systems. As a result of this weakness, certain encryption keys are much more common than they should be, such that an attacker could guess the key through a brute-force attack given minimal knowledge of the system. This particularly affects the use of encryption keys in OpenSSH, OpenVPN and SSL certificates.
 
Ubuntu: Samba vulnerabilities  17 June 2008 
Posted by Benjamin D. Thomas   
Samba developers discovered that nmbd could be made to overrun a buffer during the processing of GETDC logon server requests. When samba is configured as a Primary or Backup Domain Controller, a remote attacker could send malicious logon requests and possibly cause a denial of service. (CVE-2007-4572) Alin Rad Pop of Secunia Research discovered that Samba did not properly perform bounds checking when parsing SMB replies. A remote attacker could send crafted SMB packets and execute arbitrary code. (CVE-2008-1105)
 
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