Apache HTTP Server: mod_macro buffer over-read
Priority MEDIUM 44CWE-125Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 4 fixed, 7 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-125 and the CVSS impact.
Summary
Out-of-bounds Read vulnerability in mod_macro of Apache HTTP Server.This issue affects Apache HTTP Server: through 2.4.57.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0304 87th percentileScored 2026-11-07
Fix Partial Red Hat: 4 advisoriesRed Hat: 4 fixed, 7 without a fix
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Apache | Apache HTTP Server | up to 2.4.57 | — | No fix listed | CNA |
- Apache HTTP Server VendorApache Affected up to 2.4.57 Fixed in — No fix listed CNA
CPE configurations NVD · 3
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* | 10.0 | Vulnerable | Debian |
| cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:* | before 2.4.58 | Vulnerable | Apache |
| cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:* | 38 | Vulnerable | Fedoraproject |
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* Versions 10.0 Vulnerable ·Debian
- cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:* Versions before 2.4.58 Vulnerable ·Apache
- cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:* Versions 38 Vulnerable ·Fedoraproject
Remediation
Red Hat 4 advisories
- RHSA-2024:3121 Released 2024-05-22 · Red Hat rating Moderatehttpd:2.4 security update
- Red Hat Enterprise Linux AppStream (v. 8) httpd-2.4.37-64.module+el8.10.0+21332+dfb1b40e.aarch64::httpd:2.4, httpd-2.4.37-64.module+el8.10.0+21332+dfb1b40e.ppc64le::httpd:2.4, httpd-2.4.37-64.module+el8.10.0+21332+dfb1b40e.s390x::httpd:2.4 +38
- RHSA-2024:2278 Released 2024-04-30 · Red Hat rating Moderatehttpd security update
- Red Hat Enterprise Linux AppStream (v. 9) httpd-2.4.57-8.el9, httpd-core-2.4.57-8.el9, httpd-devel-2.4.57-8.el9 +8
- RHSA-2024:1316 Released 2024-03-18 · Red Hat rating ModerateRed Hat JBoss Core Services Apache HTTP Server 2.4.57 SP3 security update
- Red Hat JBoss Core Services on RHEL 7 Server jbcs-httpd24-curl-8.6.0-3.el7jbcs, jbcs-httpd24-httpd-2.4.57-9.el7jbcs, jbcs-httpd24-httpd-devel-2.4.57-9.el7jbcs +15
- Red Hat JBoss Core Services on RHEL 8 jbcs-httpd24-curl-8.6.0-3.el8jbcs, jbcs-httpd24-httpd-2.4.57-9.el8jbcs, jbcs-httpd24-httpd-devel-2.4.57-9.el8jbcs +15
Show 1 more Red Hat advisories
- RHSA-2024:1317 Released 2024-03-18 · Red Hat rating ModerateRed Hat JBoss Core Services Apache HTTP Server 2.4.57 SP3 security update
- Red Hat JBoss Core Services
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| OpenShift Pipelines | Affected | No fix yet |
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Out of support scope |
| Red Hat JBoss Enterprise Application Platform 6 | Affected | No fix planned: Out of support scope |
| Red Hat OpenShift Data Science (RHODS) | Affected | No fix planned: Will not fix |
| Red Hat OpenShift GitOps | Affected | No fix planned: Will not fix |
| Red Hat Software Collections | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux AppStream (v. 8) | Fixed | RHSA-2024:3121 |
| Red Hat Enterprise Linux AppStream (v. 9) | Fixed | RHSA-2024:2278 |
| Red Hat JBoss Core Services on RHEL 7 Server | Fixed | RHSA-2024:1316 |
| Red Hat JBoss Core Services on RHEL 8 | Fixed | RHSA-2024:1316 |
Not affected: 6 products
- Red Hat JBoss Core Services on RHEL 7 Server
- Red Hat JBoss Core Services on RHEL 8
- Red Hat OpenStack Platform 16.1
- Red Hat OpenStack Platform 16.2
- Red Hat OpenStack Platform 17.1
- Red Hat OpenStack Platform 18.0
Timeline
- 2026-10-02 Threatist record created from CVE-2023-31122
- 2026-10-03 Alias added: GHSA-xw7g-pw64-xph3
- 2026-10-09 Fix available: RHSA-2024:1317 · Red Hat
References
Advisory 5
- https://httpd.apache.org/security/vulnerabilities_24.html
- https://security.netapp.com/advisory/ntap-20231027-0011/
- https://lists.fedoraproject.org/archives/list/[email protected]/message/VZJTT5TEFNSBWVMKCLS6EZ7PI6EJYBCO/
- https://lists.fedoraproject.org/archives/list/[email protected]/message/ZFDNHDH4VLFGDPY6MEZV2RO5N5FLFONW/
- https://lists.debian.org/debian-lts-announce/2024/05/msg00013.html
More Apache Http Server vulnerabilities
- TI-2021-18535 Path Traversal and Remote Code Execution in Apache HTTP Server 2.4.49 and 2.4.50 (incomplete fix of CVE-2021-41773) KEVCVSS 3.1CRITICAL 9.8
- TI-2021-18417 Path traversal and file disclosure vulnerability in Apache HTTP Server 2.4.49 KEVCVSS 3.1CRITICAL 9.8
- TI-2024-25716 Apache HTTP Server weakness in mod_rewrite when first segment of substitution matches filesystem path. KEVCVSS 3.1CRITICAL 9.1
- TI-2021-17490 mod_proxy SSRF KEVCVSS 3.1CRITICAL 9.0
- TI-2019-00184 Use after free in Apache HTTP Server KEVCVSS 3.1HIGH 7.8
- TI-2009-03392 The TLS protocol, and the SSL protocol 3.0 and possibly earlier, as used in Microsoft… CVSS 3.1CRITICAL 9.8
Sources
- CVE-2023-31122 · CVE Program
- CVE-2023-31122 · NVD
- FIRST EPSS
- GHSA-xw7g-pw64-xph3 · GitHub Advisory Database · CC BY 4.0
- CVE-2023-31122 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences