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sqlparse contains a regular expression that is vulnerable to Regular Expression Denial of Service

Moderate severity GitHub Reviewed Published Apr 18, 2023 in andialbrecht/sqlparse • Updated Nov 11, 2023

Package

pip sqlparse (pip)

Affected versions

>= 0.1.15, < 0.4.4

Patched versions

0.4.4

Description

Impact

The SQL parser contains a regular expression that is vulnerable to ReDoS (Regular Expression Denial of Service). The vulnerability may lead to Denial of Service (DoS).

Patches

This issues has been fixed in sqlparse 0.4.4.

Workarounds

None.

References

This issue was discovered and reported by GHSL team member @erik-krogh (Erik Krogh Kristensen).

  • Commit that introduced the vulnerability: e75e35869473832a1eb67772b1adfee2db11b85a

References

@andialbrecht andialbrecht published to andialbrecht/sqlparse Apr 18, 2023
Published by the National Vulnerability Database Apr 18, 2023
Published to the GitHub Advisory Database Apr 21, 2023
Reviewed Apr 21, 2023
Last updated Nov 11, 2023

Severity

Moderate

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Local
Attack complexity
Low
Privileges required
None
User interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS score

0.075%
(33rd percentile)

Weaknesses

CVE ID

CVE-2023-30608

GHSA ID

GHSA-rrm6-wvj7-cwh2

Source code

Credits

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