CVE-2019-19275: High severity python typed ast vulnerability

Published Nov 26, 2019
·
Updated

typedast 1.3.0 and 1.3.1 has an astforarguments out-of-bounds read. An attacker with the ability to cause a Python interpreter to parse Python source (but not necessarily execute it) may be able to crash the interpreter process. This could be a concern, for example, in a web-based service that parses (but does not execute) Python code. (This issue also affected certain Python 3.8.0-alpha prereleases.)

Affected Software

3 affected componentsFixes available
pip/typed-ast>=1.3.0<=1.3.1
1.3.2
Python Typed Ast=1.3.0
Python Typed Ast=1.3.1

Event History

Nov 26, 2019
CVE Published
via MITRE·02:08 PM
Data Sourced
via MITRE·02:08 PM
Description
Dec 2, 2019
Advisory Published
06:03 PM
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Frequently Asked Questions

1

What is the severity of CVE-2019-19275?

CVE-2019-19275 has been assigned a moderate severity level due to its potential to crash the Python interpreter.

2

How do I fix CVE-2019-19275?

To mitigate CVE-2019-19275, upgrade typed_ast to version 1.3.2 or later.

3

Which versions are affected by CVE-2019-19275?

CVE-2019-19275 affects typed_ast versions 1.3.0 and 1.3.1.

4

What impact does CVE-2019-19275 have?

CVE-2019-19275 could allow an attacker to cause an out-of-bounds read, potentially crashing the interpreter process.

5

Can CVE-2019-19275 be exploited remotely?

CVE-2019-19275 can be exploited if an attacker can cause a Python interpreter to parse malicious Python source code.

Contact

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