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Debian Security Advisory DSA 2234-1 (zodb)

Information

Severity

Severity

High

Family

Family

Debian Local Security Checks

CVSSv2 Base

CVSSv2 Base

7.5

CVSSv2 Vector

CVSSv2 Vector

AV:N/AC:L/Au:N/C:P/I:P/A:P

Solution Type

Solution Type

Vendor Patch

Created

Created

11 years ago

Modified

Modified

1 year ago

Summary

The remote host is missing an update to zodb announced via advisory DSA 2234-1.

Insight

Insight

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.

Solution

Solution

We recommend that you upgrade your zodb packages.

Common Vulnerabilities and Exposures (CVE)