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nvd[email protected]NVD:CVE-2020-8492
HistoryJan 30, 2020 - 7:15 p.m.

CVE-2020-8492

2020-01-3019:15:12
CWE-400
[email protected]
web.nvd.nist.gov
2

7.1 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

AV:N/AC:M/Au:N/C:N/I:N/A:C

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

6.9 Medium

AI Score

Confidence

High

0.006 Low

EPSS

Percentile

78.5%

JSON

Python 2.7 through 2.7.17, 3.5 through 3.5.9, 3.6 through 3.6.10, 3.7 through 3.7.6, and 3.8 through 3.8.1 allows an HTTP server to conduct Regular Expression Denial of Service (ReDoS) attacks against a client because of urllib.request.AbstractBasicAuthHandler catastrophic backtracking.

Affected configurations

NVD
Node
pythonpythonRange2.7.0–2.7.17
OR
pythonpythonRange3.5.0–3.5.9
OR
pythonpythonRange3.6.0–3.6.10
OR
pythonpythonRange3.7.0–3.7.6
OR
pythonpythonRange3.8.0–3.8.1
Node
opensuseleapMatch15.1
Node
canonicalubuntu_linuxMatch12.04
OR
canonicalubuntu_linuxMatch14.04esm
OR
canonicalubuntu_linuxMatch16.04esm
OR
canonicalubuntu_linuxMatch18.04lts
OR
canonicalubuntu_linuxMatch19.10
OR
canonicalubuntu_linuxMatch20.04lts
Node
fedoraprojectfedoraMatch31
OR
fedoraprojectfedoraMatch32
Node
debiandebian_linuxMatch9.0

References

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7.1 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

AV:N/AC:M/Au:N/C:N/I:N/A:C

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

6.9 Medium

AI Score

Confidence

High

0.006 Low

EPSS

Percentile

78.5%

JSON
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