CVE-2017-12852 Numpy missing input validation

High 7.5 Published 15 Aug 2017 Updated 5 Aug 2024

Attackers can cause a denial of service by passing empty lists or arrays to the numpy.pad function, triggering an infinite loop.

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

What is CVE-2017-12852?

CVE-2017-12852 is a high-severity denial of service vulnerability in n/a, published on 15 Aug 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The numpy.pad function in Numpy 1.13.1 and older versions is missing input validation. An empty list or ndarray will stick into an infinite loop, which can allow attackers to cause a DoS attack.

Weakness: CWE-835

Which versions are affected by CVE-2017-12852?

3 open source packages ship an affected version, including numpy. It affects 1 product.

Package	Affected	Fixed in
`numpy` PyPI	All versions	`1.13.3`
`numpy` PyPI	All versions	`1.13.3`
`numpy` PyPI	All versions	`1.13.3`

Linux distribution packages (4)

`python-numpy_1_13_3-gnu-hpc` SUSE:Linux Enterprise Module for HPC 12	All versions	`1.13.3-4.6.1`
`python-numpy` SUSE:Linux Enterprise Server 12 SP5	All versions	`1.8.0-5.19.1`
`python-numpy` SUSE:Linux Enterprise Server for SAP Applications 12 SP5	All versions	`1.8.0-5.19.1`
`python-numpy` SUSE:Linux Enterprise Software Development Kit 12 SP5	All versions	`1.8.0-5.19.1`

Products include Numpy Numpy.

How do I fix CVE-2017-12852?

Upgrade numpy to 1.13.3 or later.

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-2017-12852 being exploited?

There is no known exploitation of CVE-2017-12852 in the wild and no public exploit code.

Public exploit code: 1 proofs of concept on GitHub.

Sources

Also known as GHSA-frgw-fgh6-9g52, PYSEC-2017-1, SUSE-RU-2017:3010-1, SUSE-SU-2022:3954-1, UBUNTU-CVE-2017-12852.