CVE-2009-4134: Medium severity Python Python vulnerability
Buffer underflow in the rgbimg module in Python 2.5 allows remote attackers to cause a denial of service (application crash) via a large ZSIZE value in a black-and-white (aka B/W) RGB image that triggers an invalid pointer dereference.
Other sources
Marc Schoenefeld found an invalid pointer dereference flaw, present in Python's RGB image processing module. An attacker could provide a specially-crafted black-and-white (B/W) RGB image, which once processed by Python's RGB module would lead to denial of service (Python VM crash).
— Red Hat
Affected Software
Remediation
Patch Available
Patch Available
Event History
Parent advisories
This vulnerability appears in the following advisories.
Frequently Asked Questions
What is the severity of CVE-2009-4134?
CVE-2009-4134 has a severity rating that indicates it can lead to a denial of service due to application crashes.
How do I fix CVE-2009-4134?
To fix CVE-2009-4134, upgrade to Python version 2.5.1 or later, which contains the necessary security patches.
What types of software are affected by CVE-2009-4134?
CVE-2009-4134 affects Python versions 2.5.0 and earlier, especially on Red Hat Enterprise Linux 4 and 5.
What can an attacker do with CVE-2009-4134?
An attacker can exploit CVE-2009-4134 to cause a denial of service by triggering a buffer underflow when processing specific RGB images.
In which Python module is CVE-2009-4134 found?
CVE-2009-4134 is found in the rgbimg module of Python.