CVE-2019-19274

Published: 26 November 2019

typed_ast 1.3.0 and 1.3.1 has a handle_keywordonly_args 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.)

Priority

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package	Release	Status
python3-typed-ast Launchpad, Ubuntu, Debian	bionic	Needs triage
	disco	Ignored (end of life)
	eoan	Not vulnerable (1.4.0-1)
	focal	Not vulnerable
	groovy	Not vulnerable
	hirsute	Not vulnerable
	impish	Not vulnerable
	jammy	Not vulnerable
	kinetic	Not vulnerable
	lunar	Not vulnerable
	mantic	Not vulnerable
	trusty	Does not exist
	upstream	Released (1.4.0-1)
	xenial	Does not exist

Severity score breakdown

Parameter	Value
Base score	7.5
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	None
Integrity impact	None
Availability impact	High
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

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