CVE-2020-29651

2020-12-0900:00:00

ubuntu.com

cve-2020-29651

denial of service

regular expression

py.path.svnwc

python-py

compute-time attack

malicious input

blame functionality

unix

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS

0.003

Percentile

70.3%

JSON

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.

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchpython-py< 1.5.2-1ubuntu0.1UNKNOWN
ubuntu20.04noarchpython-py< 1.8.1-1ubuntu0.1UNKNOWN
ubuntu16.04noarchpython-py< anyUNKNOWN