Gentoo Linux Security Advisory GLSA 200407-20
Severity: Low
Title: Subversion: Vulnerability in mod_authz_svn
Date: July 26, 2004
Bugs: #57747
ID: 200407-20
Synopsis
Users with write access to parts of a Subversion repository may
bypass read restrictions in mod_authz_svn and read any part of the
repository they wish.
Background
Subversion is an advanced version control system, similar to
CVS, which supports additional functionality such as the ability to
move, copy and delete files and directories. A Subversion server
may be run as an Apache module, a standalone server (svnserve), or
on-demand over ssh (a la CVS’ “:ext:” protocol). The mod_authz_svn
Apache module works with Subversion in Apache to limit access to
parts of Subversion repositories based on policy set by the
administrator.
Affected packages
| Package | Vulnerable | Unaffected |
| 1 dev-util/subversion | <= 1.0.4-r1 | >= 1.0.6 |
Description
Users with write access to part of a Subversion repository may
bypass read restrictions on any part of that repository. This can
be done using an “svn copy” command to copy the portion of a
repository the user wishes to read into an area where they have
write access.
Since copies are versioned, any such copy attempts will be
readily apparent.
Impact
This is a low-risk vulnerability. It affects only users of
Subversion who are running servers inside Apache and using
mod_authz_svn. Additionally, this vulnerability may be exploited
only by users with write access to some portion of a
repository.
Workaround
Keep sensitive content separated into different Subversion
repositories, or disable the Apache Subversion server and use
svnserve instead.
Resolution
All Subversion users should upgrade to the latest available
version:
# emerge sync
# emerge -pv ">=dev-util/subversion-1.0.6"
# emerve ">=dev-util/subversion-1.0.6"
References
[ 1 ] ChangeLog for Subversion 1.0.6
http://svn.collab.net/repos/svn/tags/1.0.6/CHANGES
Availability
This GLSA and any updates to it are available for viewing at the
Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200407-20.xml
Concerns?
Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or
alternatively, you may file a bug at http://bugs.gentoo.org.
License
Copyright 2004 Gentoo Foundation, Inc; referenced text belongs
to its owner(s).
The contents of this document are licensed under the Creative
Commons – Attribution / Share Alike license.
http://creativecommons.org/licenses/by-sa/1.0
Gentoo Linux Security Advisory GLSA 200407-19
Severity: Normal
Title: Pavuk: Digest authentication helper buffer overflow
Date: July 26, 2004
ID: 200407-19
Synopsis
Pavuk contains a bug that can allow an attacker to run arbitrary
code.
Background
Pavuk is web spider and website mirroring tool.
Affected packages
| Package | Vulnerable | Unaffected |
| 1 net-misc/pavuk | <= 0.9.28-r2 | >= 0.9.28-r3 |
Description
Pavuk contains several buffer overflow vulnerabilities in the
code handling digest authentication.
Impact
An attacker could cause a buffer overflow, leading to arbitrary
code execution with the rights of the user running Pavuk.
Workaround
There is no known workaround at this time. All users are
encouraged to upgrade to the latest available version of Pavuk.
Resolution
All Pavuk users should upgrade to the latest version:
# emerge sync
# emerge -pv ">=net-misc/pavuk-0.9.28-r3"
# emerge ">=net-misc/pavuk-0.9.28-r3"
Availability
This GLSA and any updates to it are available for viewing at the
Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200407-19.xml
Concerns?
Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or
alternatively, you may file a bug at http://bugs.gentoo.org.
License
Copyright 2004 Gentoo Foundation, Inc; referenced text belongs
to its owner(s).
The contents of this document are licensed under the Creative
Commons – Attribution / Share Alike license.