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Debian: DSA-2234-1 Critical: python-zodb Remote Execution

Several remote vulnerabilities have been discovered in python-zodb, a set of tools for using ZODB, that could lead to arbitrary code execution in the worst case. The Common Vulnerabilities and Exposures project identified the following problems: . -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - ------------------------------------------------------------------------- Debian Security Advisory DSA-2234-1 This email address is being protected from spambots. You need JavaScript enabled to view it. http://www.debian.org/security/ Luciano Bello May 10, 2011 http://www.debian.org/security/faq - ------------------------------------------------------------------------- Package : zodb Vulnerability : several Problem type : remote Debian-specific: no CVE ID : CVE-2009-0668 CVE-2009-0669 Debian Bug : 540465 Several remote vulnerabilities have been discovered in python-zodb, a set of tools for using ZODB, that could lead to arbitrary code execution in the worst case. The Common Vulnerabilities and Exposures project identified the following problems: CVE-2009-0668 The ZEO server doesn't restrict the callables when unpickling data received from a malicious client which can be used by an attacker to execute arbitrary python code on the server by sending certain exception pickles. This also allows an attacker to import any importable module as ZEO is importing the module containing a callable specified in a pickle to test for a certain flag. CVE-2009-0669 Due to a programming error an authorization method in the StorageServer component of ZEO was not used as an internal method. This allows a malicious client to bypass authentication when connecting to a ZEO server by simply calling this authorization method. The update also limits the number of new object ids a client can request to 100 as it would be possible to consume huge amounts of resources by requesting a big batch of new object ids. No CVE id has been assigned to this. For the oldstable distribution (lenny),this problem has been fixed in version 1:3.6.0-2+lenny3. The stable distribution (squeeze) is not affected, it was fixed before the initial release. For the unstable distribution (sid), this problem has been fixed in version 1:3.8.2-1. We recommend that you upgrade your zodb packages. Further information about Debian Security Advisories, how to apply these updates to your system and frequently asked questions can be found at: http://www.debian.org/security/ Mailing list: This email address is being protected from spambots. You need JavaScript enabled to view it. . Multiple vulnerabilities in python-zodb may result in arbitrary code execution; Debian users advised to upgrade.. Debian Security Advisory,zodb update,remote vulnerabilities,python security. . Severity: Critical. LinuxSecurity.com Team

May 10, 2011 •Critical Debian