CVE-2012-3443 Django Image Field Vulnerable to Image Decompression Bombs

What is CVE-2012-3443?

CVE-2012-3443 is a medium-severity denial of service vulnerability in Djangoproject Django, published on 31 Jul 2012. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

The django.forms.ImageField class in the form system in Django before 1.3.2 and 1.4.x before 1.4.1 completely decompresses image data during image validation, which allows remote attackers to cause a denial of service (memory consumption) by uploading an image file.

Weakness: CWE-20

Which versions are affected by CVE-2012-3443?

5 open source packages ship an affected version, including django and Django. It affects 1 product.

Products include Djangoproject Django.

How do I fix CVE-2012-3443?

Upgrade django to a fixed version for your release line: 1.3.2 or 1.4.1.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2012-3443 being exploited?

There is no known exploitation of CVE-2012-3443 in the wild and no public exploit code.

Other vulnerabilities in Djangoproject Django

• CVE-2026-4277 Privilege abuse in GenericInlineModelAdmin Critical 9.8
• CVE-2024-53908 Django SQL injection in HasKey(lhs, rhs) on Oracle Critical 9.8
• CVE-2024-42005 Django SQL injection vulnerability Critical 9.8
• CVE-2023-31047 Django bypasses validation when using one form field to upload multiple files Critical 9.8
• CVE-2022-34265 Django `Trunc()` and `Extract()` database functions vulnerable to SQL Injection Critical 9.8

All Djangoproject Django vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2012-3443, GHSA-59w8-4wm2-4xw8, PYSEC-2012-3.