Apache HTTP Server up to 2.4.57 mod_macro buffer overflow

| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 6.4 | $0-$5k | 0.00 |
Summary
A vulnerability was found in Apache HTTP Server up to 2.4.57. It has been declared as critical. Impacted is an unknown function of the component mod_macro. Executing a manipulation can lead to buffer overflow. This vulnerability is tracked as CVE-2023-31122. No exploit exists. It is recommended to upgrade the affected component.
Details
A vulnerability was found in Apache HTTP Server up to 2.4.57 (Web Server). It has been declared as critical. This vulnerability affects some unknown processing of the component mod_macro. The manipulation with an unknown input leads to a buffer overflow vulnerability. The CWE definition for the vulnerability is CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. As an impact it is known to affect confidentiality, integrity, and availability.
The weakness was disclosed 10/19/2023. The advisory is available at lists.apache.org. This vulnerability was named CVE-2023-31122 since 04/24/2023. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 01/04/2026).
The vulnerability scanner Nessus provides a plugin with the ID 211533 (Oracle Linux 9 : httpd (ELSA-2024-9306)), which helps to determine the existence of the flaw in a target environment.
Upgrading to version 2.4.58 eliminates this vulnerability.
The vulnerability is also documented in the databases at Tenable (211533) and CERT Bund (WID-SEC-2023-2712). If you want to get best quality of vulnerability data, you may have to visit VulDB.
Affected
- Debian Linux
- Amazon Linux 2
- Red Hat JBoss Core Services
- Red Hat Enterprise Linux
- Fedora Linux
- Ubuntu Linux
- SUSE Linux
- IBM Rational ClearCase
- Oracle Linux
- IBM Rational ClearQuest
- IBM Power Hardware Management Console
- Dell NetWorker
- Apache HTTP Server
- IBM HTTP Server
- Xerox FreeFlow Print Server
- Open Source Varnish HTTP Cache
- IBM QRadar SIEM
Product
Type
Vendor
Name
Version
- 2.4.0
- 2.4.1
- 2.4.2
- 2.4.3
- 2.4.4
- 2.4.5
- 2.4.6
- 2.4.7
- 2.4.8
- 2.4.9
- 2.4.10
- 2.4.11
- 2.4.12
- 2.4.13
- 2.4.14
- 2.4.15
- 2.4.16
- 2.4.17
- 2.4.18
- 2.4.19
- 2.4.20
- 2.4.21
- 2.4.22
- 2.4.23
- 2.4.24
- 2.4.25
- 2.4.26
- 2.4.27
- 2.4.28
- 2.4.29
- 2.4.30
- 2.4.31
- 2.4.32
- 2.4.33
- 2.4.34
- 2.4.35
- 2.4.36
- 2.4.37
- 2.4.38
- 2.4.39
- 2.4.40
- 2.4.41
- 2.4.42
- 2.4.43
- 2.4.44
- 2.4.45
- 2.4.46
- 2.4.47
- 2.4.48
- 2.4.49
- 2.4.50
- 2.4.51
- 2.4.52
- 2.4.53
- 2.4.54
- 2.4.55
- 2.4.56
- 2.4.57
License
Website
- Vendor: https://www.apache.org/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 6.5VulDB Meta Temp Score: 6.4
VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 7.5
NVD Vector: 🔍
CVSSv2
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
|---|---|---|---|---|---|
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
Exploiting
Class: Buffer overflowCWE: CWE-120 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍
Physical: No
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
| 0-Day | Unlock | Unlock | Unlock | Unlock |
|---|---|---|---|---|
| Today | Unlock | Unlock | Unlock | Unlock |
Nessus ID: 211533
Nessus Name: Oracle Linux 9 : httpd (ELSA-2024-9306)
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: HTTP Server 2.4.58
Timeline
04/24/2023 🔍10/19/2023 🔍
10/19/2023 🔍
01/04/2026 🔍
Sources
Vendor: apache.orgAdvisory: FEDORA-2023-3d1bf0ee44
Status: Confirmed
Confirmation: 🔍
CVE: CVE-2023-31122 (🔍)
GCVE (CVE): GCVE-0-2023-31122
GCVE (VulDB): GCVE-100-242962
CERT Bund: WID-SEC-2023-2712 - Apache HTTP Server: Mehrere Schwachstellen ermöglichen Denial of Service
Entry
Created: 10/19/2023 19:47Updated: 01/04/2026 02:16
Changes: 10/19/2023 19:47 (41), 11/11/2023 14:36 (2), 11/11/2023 14:37 (11), 06/11/2024 00:41 (15), 11/20/2024 04:09 (3), 01/04/2026 02:16 (7)
Complete: 🔍
Cache ID: 216::103
If you want to get best quality of vulnerability data, you may have to visit VulDB.
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