It was discovered that PyWebDAV, a WebDAV server implementation, contains several SQL injection vulnerabilities in the processing of user credentials.
The oldstable distribution (lenny) does not contain a python-webdav package.
For the stable distribution (squeeze), this problem has been fixed in version 0.9.4-1+squeeze1.
For the testing distribution (wheezy) and the unstable distribution (sid), this problem has been fixed in version 0.9.4-3.
We recommend that you upgrade your python-webdav packages.