CVE-2022-3272: rdiffweb's unlimited length email field can lead to DoS
7.5
CVSS Score
3.1
Basic Information
CVE ID
GHSA ID
EPSS Score
0.24358%
CWE
-
Published
9/27/2022
Updated
1/29/2023
KEV Status
No
Technology
Python
Technical Details
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Package Name | Ecosystem | Vulnerable Versions | First Patched Version |
---|---|---|---|
rdiffweb | pip | >= 0, < 2.4.8 | 2.4.8 |
Vulnerability Intelligence
Miggo AI
Root Cause Analysis
The vulnerability stems from missing length validation on email fields in form handlers. The patches explicitly added validators.length(max=256)
to these email fields (in page_admin.py and pref_general.py), and the CVE description directly implicates email-related operations (signup, login, email changes). The added test cases (e.g., test_change_email_with_too_long
) confirm these were the vulnerable entry points. While username and root directory fields were also patched, CVE-2022-3272 specifically references the email field as the DoS vector.