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Arbitrary Code Execution Affecting joblib package, versions [,1.1.1)

0.0
critical

Snyk CVSS

    Attack Complexity Low
    Confidentiality High
    Integrity High
    Availability High

    Threat Intelligence

    Exploit Maturity Proof of concept
    EPSS 0.33% (71st percentile)
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NVD
9.8 critical

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  • Snyk ID SNYK-PYTHON-JOBLIB-3027033
  • published 25 Sep 2022
  • disclosed 19 Sep 2022
  • credit Jim Lin
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Introduced: 19 Sep 2022

CVE-2022-21797 Open this link in a new tab
CWE-94 Open this link in a new tab
First added by Snyk

How to fix?

Upgrade joblib to version 1.1.1 or higher.

Overview

joblib is a Lightweight pipelining with Python functions

Affected versions of this package are vulnerable to Arbitrary Code Execution via the pre_dispatch flag in Parallel() class due to the eval() statement.

PoC 

def f():
    return 1
p = Parallel(n_jobs=3, pre_dispatch="sys.exit(0)")
p(delayed(f)() for i in range(10)) # this will cause the system to exit