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CVE-2009-4134

Buffer underflow in the rgbimg module in Python 2.5 allows remote attackers to cause a denial of...

5.0 MediumFix available

CVE-2009-4134 is a medium vulnerability (CVSS 5.0) in Python, published May 27, 2010. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 4.42%, the 91st percentile. Fixed in python 0:2.4.3-43.el5.

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.

Exploit likelihood

4.42%Up 0.6 points since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used 5.0

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.

Record
CVE-2009-4134
CVSS 2.0
5.0 MediumAV:N/AC:L/Au:N/C:N/I:N/A:P
Weakness
CWE-787
Updated
2026-11-02
CVE List No score

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.

Record
CVE-2009-4134
Updated
2026-11-02
EUVDEUVD-2009-4104 No score

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.

Record
EUVD-2009-4104
Updated
2026-11-03
GitHub AdvisoriesGHSA-5g97-f544-j8g3 No score

Buffer underflow in the rgbimg module in Python 2.5 allows remote attackers to cause a denial of...

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.

Record
GHSA-5g97-f544-j8g3
Weakness
CWE-787
Updated
2026-11-02
OSVPSF-2010-1 No score

rgbimg and imageop overflows

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.

Record
PSF-2010-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
python
Red Hat:enterprise_linux:5::client_workstation
 before 0:2.4.3-43.el5
0:2.4.3-43.el5
python-debuginfo
Red Hat:enterprise_linux:5::client_workstation
 before 0:2.4.3-43.el5
0:2.4.3-43.el5
python-devel
Red Hat:enterprise_linux:5::client_workstation
 before 0:2.4.3-43.el5
0:2.4.3-43.el5
python
Red Hat:enterprise_linux:5::client
 before 0:2.4.3-43.el5
0:2.4.3-43.el5
python-debuginfo
Red Hat:enterprise_linux:5::client
 before 0:2.4.3-43.el5
0:2.4.3-43.el5
python-libs
Red Hat:enterprise_linux:5::client
 before 0:2.4.3-43.el5
0:2.4.3-43.el5
python-tools
Red Hat:enterprise_linux:5::client
 before 0:2.4.3-43.el5
0:2.4.3-43.el5
tkinter
Red Hat:enterprise_linux:5::client
 before 0:2.4.3-43.el5
0:2.4.3-43.el5
python
Red Hat:enterprise_linux:5::server
 before 0:2.4.3-43.el5
0:2.4.3-43.el5
python-debuginfo
Red Hat:enterprise_linux:5::server
 before 0:2.4.3-43.el5
0:2.4.3-43.el5
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Affected packages
PackageAffectedFixed
python-devel
Red Hat:enterprise_linux:5::server
 before 0:2.4.3-43.el5
0:2.4.3-43.el5
python-libs
Red Hat:enterprise_linux:5::server
 before 0:2.4.3-43.el5
0:2.4.3-43.el5
python-tools
Red Hat:enterprise_linux:5::server
 before 0:2.4.3-43.el5
0:2.4.3-43.el5
tkinter
Red Hat:enterprise_linux:5::server
 before 0:2.4.3-43.el5
0:2.4.3-43.el5
python
Red Hat:enterprise_linux:4::as
 before 0:2.3.4-14.9.el4
0:2.3.4-14.9.el4
python-debuginfo
Red Hat:enterprise_linux:4::as
 before 0:2.3.4-14.9.el4
0:2.3.4-14.9.el4
python-devel
Red Hat:enterprise_linux:4::as
 before 0:2.3.4-14.9.el4
0:2.3.4-14.9.el4
python-docs
Red Hat:enterprise_linux:4::as
 before 0:2.3.4-14.9.el4
0:2.3.4-14.9.el4
python-tools
Red Hat:enterprise_linux:4::as
 before 0:2.3.4-14.9.el4
0:2.3.4-14.9.el4
tkinter
Red Hat:enterprise_linux:4::as
 before 0:2.3.4-14.9.el4
0:2.3.4-14.9.el4
python
Red Hat:enterprise_linux:4::desktop
 before 0:2.3.4-14.9.el4
0:2.3.4-14.9.el4
python-debuginfo
Red Hat:enterprise_linux:4::desktop
 before 0:2.3.4-14.9.el4
0:2.3.4-14.9.el4
python-devel
Red Hat:enterprise_linux:4::desktop
 before 0:2.3.4-14.9.el4
0:2.3.4-14.9.el4
python-docs
Red Hat:enterprise_linux:4::desktop
 before 0:2.3.4-14.9.el4
0:2.3.4-14.9.el4
python-tools
Red Hat:enterprise_linux:4::desktop
 before 0:2.3.4-14.9.el4
0:2.3.4-14.9.el4
tkinter
Red Hat:enterprise_linux:4::desktop
 before 0:2.3.4-14.9.el4
0:2.3.4-14.9.el4
python
Red Hat:enterprise_linux:4::es
 before 0:2.3.4-14.9.el4
0:2.3.4-14.9.el4
python-debuginfo
Red Hat:enterprise_linux:4::es
 before 0:2.3.4-14.9.el4
0:2.3.4-14.9.el4
python-devel
Red Hat:enterprise_linux:4::es
 before 0:2.3.4-14.9.el4
0:2.3.4-14.9.el4
python-docs
Red Hat:enterprise_linux:4::es
 before 0:2.3.4-14.9.el4
0:2.3.4-14.9.el4
python-tools
Red Hat:enterprise_linux:4::es
 before 0:2.3.4-14.9.el4
0:2.3.4-14.9.el4
tkinter
Red Hat:enterprise_linux:4::es
 before 0:2.3.4-14.9.el4
0:2.3.4-14.9.el4
python
Red Hat:enterprise_linux:4::ws
 before 0:2.3.4-14.9.el4
0:2.3.4-14.9.el4
python-debuginfo
Red Hat:enterprise_linux:4::ws
 before 0:2.3.4-14.9.el4
0:2.3.4-14.9.el4
python-devel
Red Hat:enterprise_linux:4::ws
 before 0:2.3.4-14.9.el4
0:2.3.4-14.9.el4
python-docs
Red Hat:enterprise_linux:4::ws
 before 0:2.3.4-14.9.el4
0:2.3.4-14.9.el4
python-tools
Red Hat:enterprise_linux:4::ws
 before 0:2.3.4-14.9.el4
0:2.3.4-14.9.el4
tkinter
Red Hat:enterprise_linux:4::ws
 before 0:2.3.4-14.9.el4
0:2.3.4-14.9.el4

History

History
WhenChangedSources
2026-11-03aliasesEUVD
2026-11-02createdCVE List, GitHub Advisories, NVD, OSV

References

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