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Duplicate Advisory: ReDos vulnerability of XMLFeedSpider

High severity GitHub Reviewed Published Feb 28, 2024 to the GitHub Advisory Database • Updated Apr 16, 2024
Withdrawn This advisory was withdrawn on Apr 16, 2024

Package

pip scrapy (pip)

Affected versions

>= 2, < 2.11.1
< 1.8.4

Patched versions

2.11.1
1.8.4

Description

Duplicate Advisory

This advisory has been withdrawn because it is a duplicate of GHSA-cc65-xxvf-f7r9. This link is maintained to preserve external references.

Original Description

Parts of the Scrapy API were found to be vulnerable to a ReDoS attack. Handling a malicious response could cause extreme CPU and memory usage during the parsing of its content, due to the use of vulnerable regular expressions for that parsing.

References

Published by the National Vulnerability Database Feb 28, 2024
Published to the GitHub Advisory Database Feb 28, 2024
Reviewed Apr 16, 2024
Withdrawn Apr 16, 2024
Last updated Apr 16, 2024

Severity

High

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
Network
Attack complexity
Low
Privileges required
None
User interaction
None
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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weaknesses

CVE ID

No known CVE

GHSA ID

GHSA-7c9g-vj9m-8pm6

Source code

No known source code
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