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githubGitHub Advisory DatabaseGHSA-8CV5-P934-3HWP
HistoryDec 08, 2020 - 9:42 p.m.

Denial of service in fast-csv

2020-12-0821:42:53
CWE-400
GitHub Advisory Database
github.com
35
redos
patches
workarounds
references
codeql
empty_row_regexp
github issue

CVSS2

3.5

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

SINGLE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

CVSS3

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

EPSS

0.008

Percentile

81.8%

Impact

Possible ReDoS (Regular Expression Denial of Service) when using ignoreEmpty option when parsing.

Patches

This has been patched in v4.3.6

Workarounds

You will only be affected by this if you use the ignoreEmpty parsing option. If you do use this option it is recommended that you upgrade to the latest version v4.3.6

References

This vulnerability was found using a CodeQL query which identified EMPTY_ROW_REGEXP regular expression as vulnerable.
Link to query run.

For more information

If you have any questions or comments about this advisory:

Affected configurations

Vulners
Node
fast-csvparseRange<4.3.6
OR
fast-cpp-csv-parser_projectfast-cpp-csv-parserRange<4.3.6
VendorProductVersionCPE
fast-csvparse*cpe:2.3:a:fast-csv:parse:*:*:*:*:*:*:*:*
fast-cpp-csv-parser_projectfast-cpp-csv-parser*cpe:2.3:a:fast-cpp-csv-parser_project:fast-cpp-csv-parser:*:*:*:*:*:*:*:*

CVSS2

3.5

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

SINGLE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

CVSS3

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

EPSS

0.008

Percentile

81.8%