FreshPorts - VuXML

The Apache Software Foundation reports:

The mod_dontdothat module of subversion and subversion clients using http(s):// are vulnerable to a denial-of-service attack, caused by exponential XML entity expansion. The attack targets XML parsers causing targeted process to consume excessive amounts of resources. The attack is also known as the "billions of laughs attack."

< 1.8.17

< 1.9.5

In some situations, subversion metadata may be unexpectedly disclosed via WebDAV. A subversion advisory states:

mod_authz_svn, the Apache httpd module which does path-based authorization on Subversion repositories, is not correctly protecting all metadata on unreadable paths.

This security issue is not about revealing the contents of protected files: it only reveals metadata about protected areas such as paths and log messages. This may or may not be important to your organization, depending on how you're using path-based authorization, and the sensitivity of the metadata.

< 1.0.8

Stefan Esser reports:

Subversion versions up to 1.0.2 are vulnerable to a date parsing vulnerability which can be abused to allow remote code execution on Subversion servers and therefore could lead to a repository compromise.

NOTE: This vulnerability is similar to the date parsing issue that affected neon. However, it is a different and distinct bug.

< 1.0.2_1

Subversion team reports:

Subversion's mod_dav_svn Apache HTTPD server module will dereference a NULL pointer if asked to deliver baselined WebDAV resources.

This can lead to a DoS. An exploit has been tested, and tools or users have been observed triggering this problem in the wild.

Subversion's mod_dav_svn Apache HTTPD server module may in certain scenarios enter a logic loop which does not exit and which allocates memory in each iteration, ultimately exhausting all the available memory on the server.

This can lead to a DoS. There are no known instances of this problem being observed in the wild, but an exploit has been tested.

Subversion's mod_dav_svn Apache HTTPD server module may leak to remote users the file contents of files configured to be unreadable by those users.

There are no known instances of this problem being observed in the wild, but an exploit has been tested.

< 1.6.17

< 1.6.17

Entry for CVE-2010-4539 says:

The walk function in repos.c in the mod_dav_svn module for the Apache HTTP Server, as distributed in Apache Subversion before 1.6.15, allows remote authenticated users to cause a denial of service (NULL pointer dereference and daemon crash) via vectors that trigger the walking of SVNParentPath collections.

Entry for CVE-2010-4644 says:

Multiple memory leaks in rev_hunt.c in Apache Subversion before 1.6.15 allow remote authenticated users to cause a denial of service (memory consumption and daemon crash) via the -g option to the blame command.

< 1.6.15

< 1.6.15

A Subversion Security Advisory reports:

Subversion clients and servers have multiple heap overflow issues in the parsing of binary deltas. This is related to an allocation vulnerability in the APR library used by Subversion.

Clients with commit access to a vulnerable server can cause a remote heap overflow; servers can cause a heap overflow on vulnerable clients that try to do a checkout or update.

This can lead to a DoS (an exploit has been tested) and to arbitrary code execution (no exploit tested, but the possibility is clear).

< 1.6.4