CVE-2010-1666 Improper Restriction of Operations within the Bounds of a Memory Buffer in python-cjson

Medium 6.8 Published Updated

A buffer overflow in python-cjson allows attackers to cause a crash or potentially execute code via crafted Unicode input when UCS-4 encoding is enabled.

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

What is CVE-2010-1666?

CVE-2010-1666 is a medium-severity memory corruption vulnerability in n/a, published on 2 Jul 2010. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Buffer overflow in Dan Pascu python-cjson 1.0.5, when UCS-4 encoding is enabled, allows context-dependent attackers to cause a denial of service (application crash) or possibly have unspecified other impact via vectors involving crafted Unicode input to the cjson.encode function.

Weakness: CWE-119

Which versions are affected by CVE-2010-1666?

3 open source packages ship an affected version, including python-cjson. It affects 1 product.

PackageAffectedFixed in
python-cjson PyPIAll versions1.0.5.1
python-cjson PyPIAll versions1.0.5.1
python-cjson PyPIAll versions1.1.0

Products include Dan Pascu Python-Cjson.

How do I fix CVE-2010-1666?

Upgrade python-cjson to a fixed version for your release line: 1.0.5.1 or 1.1.0.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2010-1666 being exploited?

There is no known exploitation of CVE-2010-1666 in the wild and no public exploit code.

Sources

Also known as DSA-2068-1, GHSA-cqmh-mpx2-g633, PYSEC-2010-30, openSUSE-SU-2024:11259-1.

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