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rdiffweb's unlimited length Fullname field can lead to DoS

Moderate severity GitHub Reviewed Published Sep 30, 2022 to the GitHub Advisory Database • Updated Jan 27, 2023

Package

pip rdiffweb (pip)

Affected versions

< 2.5.0a3

Patched versions

2.5.0a3

Description

rdiffweb prior to 2.5.0a3 does not validate email length, allowing users to insert an email longer than 255 characters. If a user signs up with an email with a length of 1 million or more characters and logs in, withdraws, or changes their email, the server may cause denial of service due to overload.

References

Published by the National Vulnerability Database Sep 29, 2022
Published to the GitHub Advisory Database Sep 30, 2022
Reviewed Sep 30, 2022
Last updated Jan 27, 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
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low

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:L

EPSS score

0.088%
(38th percentile)

Weaknesses

CVE ID

CVE-2022-3364

GHSA ID

GHSA-fqfg-c577-2vc3

Source code

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