Out-of-bounds Read

Affecting typed_ast package, versions [1.30,1.32)

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Overview

typed_ast is a Python 3 package that provides a Python 2.7 and Python 3 parser similar to the standard ast library.

Affected versions of this package are vulnerable to Out-of-bounds Read via handle_keywordonly_args. 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.

Remediation

Upgrade typed_ast to version 1.32 or higher.

References

CVSS Score

7.1
high severity
  • Attack Vector
    Network
  • Attack Complexity
    Low
  • Privileges Required
    None
  • User Interaction
    Required
  • Scope
    Unchanged
  • Confidentiality
    Low
  • Integrity
    None
  • Availability
    High
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H/E:P/RL:O/RC:C
Credit
Brad Larsen
CVE
CVE-2019-19274
CWE
CWE-125
Snyk ID
SNYK-PYTHON-TYPEDAST-535627
Disclosed
26 Nov, 2019
Published
26 Nov, 2019