CVE-2013-7338 Denial of service in n/a

High 7.1 Published Updated

Remote attackers can cause denial of service via infinite loop in Python zip file handling functions by providing malformed file size values.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2013-7338?

CVE-2013-7338 is a high-severity denial of service vulnerability in Apple Mac Os X, published on 22 Apr 2014. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Python before 3.3.4 RC1 allows remote attackers to cause a denial of service (infinite loop and CPU consumption) via a file size value larger than the size of the zip file to the (1) ZipExtFile.read, (2) ZipExtFile.read(n), (3) ZipExtFile.readlines, (4) ZipFile.extract, or (5) ZipFile.extractall function.

Weakness: CWE-20

Which versions are affected by CVE-2013-7338?

It affects 2 products.

Products include Apple Mac Os X, Python Python.

How do I fix CVE-2013-7338?

Upgrade to a fixed version.

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-2013-7338 being exploited?

There is no known exploitation of CVE-2013-7338 in the wild and no public exploit code.

All Apple Mac Os X vulnerabilities

Sources

Also known as GHSA-hr8p-cf7x-v483, MGASA-2014-0140, PSF-2014-3.

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