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Ubuntu: Dnsmasq vulnerability  22 July 2008 
Posted by Benjamin D. Thomas   
Dan Kaminsky discovered weaknesses in the DNS protocol as implemented by Dnsmasq. A remote attacker could exploit this to spoof DNS entries and poison DNS caches. Among other things, this could lead to misdirected email and web traffic.
 
Ubuntu: Firefox vulnerabilities  17 July 2008 
Posted by Benjamin D. Thomas   
A flaw was discovered in the browser engine. A variable could be made to overflow causing the browser to crash. If a user were tricked into opening a malicious web page, an attacker could cause a denial of service or possibly execute arbitrary code with the privileges of the user invoking the program. (CVE-2008-2785)
 
Ubuntu: PCRE vulnerability  14 July 2008 
Posted by Benjamin D. Thomas   
Tavis Ormandy discovered that the PCRE library did not correctly handle certain in-pattern options. An attacker could cause applications linked against pcre3 to crash, leading to a denial of service.
 
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)
 
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