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py vulnerable to Regular Expression Denial of Service

High severity GitHub Reviewed Published Apr 20, 2021 to the GitHub Advisory Database • Updated Aug 16, 2023

Package

pip py (pip)

Affected versions

< 1.10.0

Patched versions

1.10.0

Description

A denial of service via regular expression in the py.path.svnwc component of py (aka python-py) through 1.9.0 could be used by attackers to cause a compute-time denial of service attack by supplying malicious input to the blame functionality.

References

Published by the National Vulnerability Database Dec 9, 2020
Reviewed Apr 9, 2021
Published to the GitHub Advisory Database Apr 20, 2021
Last updated Aug 16, 2023

Severity

High
7.5
/ 10

CVSS base metrics

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

Weaknesses

CVE ID

CVE-2020-29651

GHSA ID

GHSA-hj5v-574p-mj7c

Source code

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