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Ubuntu
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Ubuntu: libxml2 vulnerability  14 January 2008 
Posted by Benjamin D. Thomas   
Brad Fitzpatrick discovered that libxml2 did not correctly handle certain UTF-8 sequences. If a remote attacker were able to trick a user or automated system into processing a specially crafted XML document, the application linked against libxml2 could enter an infinite loop, leading to a denial of service via CPU resource consumption.
 
Ubuntu: PostgreSQL vulnerabilities  14 January 2008 
Posted by Benjamin D. Thomas   
Nico Leidecker discovered that PostgreSQL did not properly restrict dblink functions. An authenticated user could exploit this flaw to access arbitrary accounts and execute arbitrary SQL queries. (CVE-2007-3278, CVE-2007-6601)
 
Ubuntu: Dovecot vulnerability  10 January 2008 
Posted by Benjamin D. Thomas   
It was discovered that in very rare configurations using LDAP, Dovecot may reuse cached connections for users with the same password. As a result, a user may be able to login as another if the connection is reused. The default Ubuntu configuration of Dovecot was not vulnerable.
 
Ubuntu: OpenSSH vulnerability  09 January 2008 
Posted by Benjamin D. Thomas   
Jan Pechanec discovered that ssh would forward trusted X11 cookies when untrusted cookie generation failed. This could lead to unintended privileges being forwarded to a remote host.
 
Ubuntu: Squid vulnerability  09 January 2008 
Posted by Benjamin D. Thomas   
It was discovered that Squid did not always clean up cache memory correctly. A remote attacker could manipulate cache update replies and cause Squid to use all available memory, leading to a denial of service.
 
Ubuntu: Net-SNMP vulnerability  09 January 2008 
Posted by Benjamin D. Thomas   
Bill Trost discovered that snmpd did not properly limit GETBULK requests. A remote attacker could specify a large number of max-repetitions and cause a denial of service via resource exhaustion.
 
Ubuntu: CUPS vulnerabilities  09 January 2008 
Posted by Benjamin D. Thomas   
Wei Wang discovered that the SNMP discovery backend did not correctly calculate the length of strings. If a user were tricked into scanning for printers, a remote attacker could send a specially crafted packet and possibly execute arbitrary code.
 
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