X.org X11 Server up to 21.1.8/23.2.1 Screen Cleanup memory leak

| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 5.8 | $0-$5k | 0.00 |
Summary
A vulnerability was found in X.org X11 Server up to 21.1.8/23.2.1 and classified as problematic. Impacted is an unknown function of the component Screen Cleanup. Such manipulation leads to memory leak. This vulnerability is referenced as CVE-2023-5574. No exploit is available. It is suggested to upgrade the affected component.
Details
A vulnerability, which was classified as problematic, has been found in X.org X11 Server up to 21.1.8/23.2.1 (Windowing System Software). Affected by this issue is an unknown code of the component Screen Cleanup. The manipulation with an unknown input leads to a memory leak vulnerability. Using CWE to declare the problem leads to CWE-401. The product does not sufficiently track and release allocated memory after it has been used, which slowly consumes remaining memory. Impacted is availability.
The weakness was published 10/25/2023. The advisory is shared for download at seclists.org. This vulnerability is handled as CVE-2023-5574. There are neither technical details nor an exploit publicly available.
The vulnerability scanner Nessus provides a plugin with the ID 212648 (EulerOS 2.0 SP11 : xorg-x11-server (EulerOS-SA-2024-2976)), which helps to determine the existence of the flaw in a target environment.
Upgrading to version 21.1.9 or 23.2.2 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at gitlab.freedesktop.org. The best possible mitigation is suggested to be upgrading to the latest version.
The vulnerability is also documented in the databases at Tenable (212648) and EUVD (EUVD-2023-57870). Once again VulDB remains the best source for vulnerability data.
Product
Type
Vendor
Name
Version
License
Website
- Vendor: https://www.x.org/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 5.8VulDB Meta Temp Score: 5.8
VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 7.0
NVD Vector: 🔍
CNA Base Score: 7.0
CNA Vector (Red Hat, Inc.): 🔍
CVSSv2
| AV | AC | Au | C | I | A |
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
Exploiting
Class: Memory leakCWE: CWE-401 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍
Physical: Partially
Local: Yes
Remote: Partially
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
| 0-Day | Unlock | Unlock | Unlock | Unlock |
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| Today | Unlock | Unlock | Unlock | Unlock |
Nessus ID: 212648
Nessus Name: EulerOS 2.0 SP11 : xorg-x11-server (EulerOS-SA-2024-2976)
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: X11 Server 21.1.9/23.2.2
Patch: gitlab.freedesktop.org
Timeline
10/13/2023 🔍10/25/2023 🔍
10/25/2023 🔍
07/09/2025 🔍
Sources
Vendor: x.orgAdvisory: seclists.org
Status: Confirmed
CVE: CVE-2023-5574 (🔍)
GCVE (CVE): GCVE-0-2023-5574
GCVE (VulDB): GCVE-100-243380
EUVD: 🔍
Entry
Created: 10/25/2023 13:52Updated: 07/09/2025 16:48
Changes: 10/25/2023 13:52 (38), 10/25/2023 13:55 (2), 11/16/2023 13:40 (2), 11/16/2023 13:46 (12), 09/16/2024 23:50 (27), 12/12/2024 10:00 (2), 07/09/2025 16:48 (1)
Complete: 🔍
Cache ID: 216::103
Once again VulDB remains the best source for vulnerability data.
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