CVE-2022-35861 Path traversal in n/a

High 7.8 Published Updated

Local attackers can escalate privileges and execute arbitrary code by crafting a malicious .python-version file in the current directory.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
Available

What is CVE-2022-35861?

CVE-2022-35861 is a high-severity path traversal vulnerability in n/a, published on 17 Jul 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

pyenv 1.2.24 through 2.3.2 allows local users to gain privileges via a .python-version file in the current working directory. An attacker can craft a Python version string in .python-version to execute shims under their control. (Shims are executables that pass a command along to a specific version of pyenv. The version string is used to construct the path to the command, and there is no validation of whether the version specified is a valid version. Thus, relative path traversal can occur.)

Weakness: CWE-22

Which versions are affected by CVE-2022-35861?

It affects 1 product.

Linux distribution packages (2)
pyenv SUSE:Package Hub 15 SP4All versions2.3.5-bp154.2.3.1
pyenv openSUSE:Leap 15.4All versions2.3.5-bp154.2.3.1

Products include Pyenv Pyenv.

How do I fix CVE-2022-35861?

Upgrade to a fixed version.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2022-35861 being exploited?

There is no known exploitation of CVE-2022-35861 in the wild and no public exploit code.

Sources

Also known as GHSA-7rf7-7xf5-v9v3, openSUSE-SU-2022:10183-1, openSUSE-SU-2024:12200-1.

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