CVE-2023-4138 Allocation of Resources Without Limits or Throttling in ikus060/rdiffweb
An attacker can cause a denial of service in rdiffweb by exhausting resources due to missing limits.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2023-4138?
CVE-2023-4138 is a medium-severity denial of service vulnerability in ikus060/rdiffweb, published on 3 Aug 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Allocation of Resources Without Limits or Throttling in GitHub repository ikus060/rdiffweb prior to 2.8.0.
Weakness: CWE-770
Which versions are affected by CVE-2023-4138?
3 open source packages ship an affected version, including rdiffweb. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
rdiffweb PyPI | All versions | 2.8.1 |
rdiffweb PyPI | All versions | 2.8.1 |
rdiffweb PyPI | All versions | 2.8.1 |
Products include Ikus-Soft Rdiffweb.
How do I fix CVE-2023-4138?
Upgrade rdiffweb to 2.8.1 or later.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2023-4138 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-4138 exists.
Other vulnerabilities in ikus060/rdiffweb
- CVE-2022-3167 Improper Restriction of Rendered UI Layers or Frames in ikus060/rdiffweb
- CVE-2022-3221 Cross-Site Request Forgery (CSRF) in ikus060/rdiffweb
- CVE-2022-4724 Improper Access Control in ikus060/rdiffweb
- CVE-2022-3389 Path Traversal in ikus060/rdiffweb
- CVE-2022-3371 rdiffweb's lack of token name length limit can result in DoS or memory corruption
Sources
Also known as GHSA-wwrg-2w5j-grvx, PYSEC-2026-1863.