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Ubuntu: Python 2.4 vulnerabilities  21 January 2010 
Posted by Benjamin D. Thomas   
USN-890-1 fixed vulnerabilities in Expat. This update provides the corresponding updates for the PyExpat module in Python 2.4. Original advisory details: Jukka Taimisto, Tero Rontti and Rauli Kaksonen discovered that Expat did not properly process malformed XML. If a user or application linked against Expat were tricked into opening a crafted XML file, an attacker could cause a denial of service via application crash. (CVE-2009-2625, CVE-2009-3720) It was discovered that Expat did not properly process malformed UTF-8 sequences. If a user or application linked against Expat were tricked into opening a crafted XML file, an attacker could cause a denial of service via application crash. (CVE-2009-3560)
 
Ubuntu: Python 2.5 vulnerabilities  21 January 2010 
Posted by Benjamin D. Thomas   
USN-890-1 fixed vulnerabilities in Expat. This update provides the corresponding updates for the PyExpat module in Python 2.5. Original advisory details: Jukka Taimisto, Tero Rontti and Rauli Kaksonen discovered that Expat did not properly process malformed XML. If a user or application linked against Expat were tricked into opening a crafted XML file, an attacker could cause a denial of service via application crash. (CVE-2009-2625, CVE-2009-3720) It was discovered that Expat did not properly process malformed UTF-8 sequences. If a user or application linked against Expat were tricked into opening a crafted XML file, an attacker could cause a denial of service via application crash. (CVE-2009-3560)
 
Ubuntu: gzip vulnerabilities  19 January 2010 
Posted by Benjamin D. Thomas   
It was discovered that gzip incorrectly handled certain malformed compressed files. If a user or automated system were tricked into opening a specially crafted gzip file, an attacker could cause gzip to crash or possibly execute arbitrary code with the privileges of the user invoking the program. (CVE-2009-2624) Aki Helin discovered that gzip incorrectly handled certain malformed files compressed with the Lempel–Ziv–Welch (LZW) algorithm. If a user or automated system were tricked into opening a specially crafted gzip file, an attacker could cause gzip to crash or possibly execute arbitrary code with the privileges of the user invoking the program. (CVE-2010-0001)
 
Ubuntu: Bind vulnerabilities  19 January 2010 
Posted by Benjamin D. Thomas   
It was discovered that Bind would incorrectly cache bogus NXDOMAIN responses. When DNSSEC validation is in use, a remote attacker could exploit this to cause a denial of service, and possibly poison DNS caches. (CVE-2010-0097) USN-865-1 provided updated Bind packages to fix a security vulnerability. The upstream security patch to fix CVE-2009-4022 was incomplete and CVE-2010-0290 was assigned to the issue. This update corrects the problem. Original advisory details: Michael Sinatra discovered that Bind did not correctly validate certain records added to its cache. When DNSSEC validation is in use, 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: LibThai vulnerability  17 January 2010 
Posted by Benjamin D. Thomas   
Tim Starling discovered that LibThai did not correctly handle long strings. A remote attacker could use specially-formed strings to execute arbitrary code with the user's privileges.
 
Ubuntu: LibThai vulnerability  17 January 2010 
Posted by Benjamin D. Thomas   
Tim Starling discovered that LibThai did not correctly handle long strings. A remote attacker could use specially-formed strings to execute arbitrary code with the user's privileges.
 
Ubuntu: Pidgin vulnerabilities  17 January 2010 
Posted by Benjamin D. Thomas   
It was discovered that Pidgin did not properly handle certain topic messages in the IRC protocol handler. If a user were tricked into connecting to a malicious IRC server, an attacker could cause Pidgin to crash, leading to a denial of service. This issue only affected Ubuntu 8.04 LTS, Ubuntu 8.10 and Ubuntu 9.04. (CVE-2009-2703) It was discovered that Pidgin did not properly enforce the "require TLS/SSL" setting when connecting to certain older Jabber servers. If a remote attacker were able to perform a man-in-the-middle attack, this flaw could be exploited to view sensitive information. This issue only affected Ubuntu 8.04 LTS, Ubuntu 8.10 and Ubuntu 9.04. (CVE-2009-3026) It was discovered that Pidgin did not properly handle certain SLP invite messages in the MSN protocol handler. A remote attacker could send a specially crafted invite message and cause Pidgin to crash, leading to a denial of service. This issue only affected Ubuntu 8.04 LTS, Ubuntu 8.10 and Ubuntu 9.04. (CVE-2009-3083) It was discovered that Pidgin did not properly handle certain errors in the XMPP protocol handler. A remote attacker could send a specially crafted message and cause Pidgin to crash, leading to a denial of service. This issue only affected Ubuntu 8.10 and Ubuntu 9.04. (CVE-2009-3085) It was discovered that Pidgin did not properly handle malformed contact-list data in the OSCAR protocol handler. A remote attacker could send specially crafted contact-list data and cause Pidgin to crash, leading to a denial of service. (CVE-2009-3615) It was discovered that Pidgin did not properly handle custom smiley requests in the MSN protocol handler. A remote attacker could send a specially crafted filename in a custom smiley request and obtain arbitrary files via directory traversal. This issue only affected Ubuntu 8.10, Ubuntu 9.04 and Ubuntu 9.10. (CVE-2010-0013) Pidgin for Ubuntu 8.04 LTS was also updated to fix connection issues with the MSN protocol. USN-675-1 and USN-781-1 provided updated Pidgin packages to fix multiple security vulnerabilities in Ubuntu 8.04 LTS. The security patches to fix CVE-2008-2955 and CVE-2009-1376 were incomplete. This update corrects the problem. Original advisory details: It was discovered that Pidgin did not properly handle file transfers containing a long filename and special characters in the MSN protocol handler. A remote attacker could send a specially crafted filename in a file transfer request and cause Pidgin to crash, leading to a denial of service. (CVE-2008-2955) It was discovered that Pidgin did not properly handle certain malformed messages in the MSN protocol handler. A remote attacker could send a specially crafted message and possibly execute arbitrary code with user privileges. (CVE-2009-1376)
 
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