mod_sed: Read/write beyond bounds
Priority HIGH 73CWE-190Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Partial Red Hat: 7 fixed, 2 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-190 and the CVSS impact.
Summary
Out-of-bounds Write vulnerability in mod_sed of Apache HTTP Server allows an attacker to overwrite heap memory with possibly attacker provided data. This issue affects Apache HTTP Server 2.4 version 2.4.52 and prior versions.
Why it matters now
EPSS 0.50401 98th percentileScored 2026-11-07
Fix Partial Red Hat: 5 advisoriesRed Hat: 7 fixed, 2 without a fix
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Apache | Apache HTTP Server | 2.4 – 2.4.52 | — | No fix listed | CNA |
- Apache HTTP Server VendorApache Affected 2.4 – 2.4.52 Fixed in — No fix listed CNA
CPE configurations NVD · 8
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:* | 2.4.0 to before 2.4.53 | Vulnerable | Apache |
| cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* | 34 | Vulnerable | Fedoraproject |
| cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* | 35 | Vulnerable | Fedoraproject |
| cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:* | 36 | Vulnerable | Fedoraproject |
| cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* | 9.0 | Vulnerable | Debian |
| cpe:2.3:a:oracle:http_server:12.2.1.3.0:*:*:*:*:*:*:* | 12.2.1.3.0 | Vulnerable | Oracle |
| cpe:2.3:a:oracle:http_server:12.2.1.4.0:*:*:*:*:*:*:* | 12.2.1.4.0 | Vulnerable | Oracle |
| cpe:2.3:a:oracle:zfs_storage_appliance_kit:8.8:*:*:*:*:*:*:* | 8.8 | Vulnerable | Oracle |
- cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:* Versions 2.4.0 to before 2.4.53 Vulnerable ·Apache
- cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* Versions 34 Vulnerable ·Fedoraproject
- cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* Versions 35 Vulnerable ·Fedoraproject
- cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:* Versions 36 Vulnerable ·Fedoraproject
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Debian
- cpe:2.3:a:oracle:http_server:12.2.1.3.0:*:*:*:*:*:*:* Versions 12.2.1.3.0 Vulnerable ·Oracle
- cpe:2.3:a:oracle:http_server:12.2.1.4.0:*:*:*:*:*:*:* Versions 12.2.1.4.0 Vulnerable ·Oracle
- cpe:2.3:a:oracle:zfs_storage_appliance_kit:8.8:*:*:*:*:*:*:* Versions 8.8 Vulnerable ·Oracle
Remediation
Red Hat 5 advisories
- RHSA-2022:8841 Released 2022-12-08 · Red Hat rating ImportantRed Hat JBoss Core Services Apache HTTP Server 2.4.51 SP1 security update
- Red Hat JBoss Core Services
- RHSA-2022:8840 Released 2022-12-08 · Red Hat rating ModerateRed Hat JBoss Core Services Apache HTTP Server 2.4.51 SP1 security update
- Red Hat JBoss Core Services on RHEL 7 Server jbcs-httpd24-curl-7.86.0-2.el7jbcs, jbcs-httpd24-httpd-2.4.51-37.el7jbcs, jbcs-httpd24-httpd-devel-2.4.51-37.el7jbcs +15
- Red Hat JBoss Core Services on RHEL 8 jbcs-httpd24-curl-7.86.0-2.el8jbcs, jbcs-httpd24-httpd-2.4.51-37.el8jbcs, jbcs-httpd24-httpd-devel-2.4.51-37.el8jbcs +15
- RHSA-2022:8067 Released 2022-11-15 · Red Hat rating Moderatehttpd security, bug fix, and enhancement update
- Red Hat Enterprise Linux AppStream (v. 9) httpd-2.4.53-7.el9, httpd-core-2.4.53-7.el9, httpd-devel-2.4.53-7.el9 +8
Show 2 more Red Hat advisories
- RHSA-2022:7647 Released 2022-11-08 · Red Hat rating Moderatehttpd:2.4 security update
- Red Hat Enterprise Linux AppStream (v. 8) httpd-2.4.37-51.module+el8.7.0+16050+02173b8e.aarch64::httpd:2.4, httpd-2.4.37-51.module+el8.7.0+16050+02173b8e.ppc64le::httpd:2.4, httpd-2.4.37-51.module+el8.7.0+16050+02173b8e.s390x::httpd:2.4 +38
- RHSA-2022:6753 Released 2022-09-29 · Red Hat rating Moderatehttpd24-httpd security and bug fix update
- Red Hat Software Collections for RHEL Workstation(v. 7) httpd24-httpd-2.4.34-23.el7.5, httpd24-httpd-devel-2.4.34-23.el7.5, httpd24-httpd-manual-2.4.34-23.el7.5 +5
- Red Hat Software Collections for RHEL(v. 7) httpd24-httpd-2.4.34-23.el7.5, httpd24-httpd-devel-2.4.34-23.el7.5, httpd24-httpd-manual-2.4.34-23.el7.5 +5
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| 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 Enterprise Linux AppStream (v. 8) | Fixed | RHSA-2022:7647 |
| Red Hat Enterprise Linux AppStream (v. 9) | Fixed | RHSA-2022:8067 |
| Red Hat JBoss Core Services | Fixed | RHSA-2022:8841 |
| Red Hat JBoss Core Services on RHEL 7 Server | Fixed | RHSA-2022:8840 |
| Red Hat JBoss Core Services on RHEL 8 | Fixed | RHSA-2022:8840 |
| Red Hat Software Collections for RHEL Workstation(v. 7) | Fixed | RHSA-2022:6753 |
| Red Hat Software Collections for RHEL(v. 7) | Fixed | RHSA-2022:6753 |
Not affected: 3 products
- Red Hat Enterprise Linux 6
- Red Hat JBoss Core Services on RHEL 7 Server
- Red Hat JBoss Core Services on RHEL 8
Timeline
- 2026-10-02 Threatist record created from CVE-2022-23943
- 2026-10-03 Alias added: GHSA-778r-vp3x-2f8c
- 2026-10-09 Fix available: RHSA-2022:8841 · Red Hat
- 2026-10-09 Fix available: Red Hat JBoss Core Services · Red Hat
References
Advisory 10
- https://httpd.apache.org/security/vulnerabilities_24.html
- [oss-security] 20220314 CVE-2022-23943: Apache HTTP Server: mod_sed: Read/write beyond bounds
- FEDORA-2022-b4103753e9
- [debian-lts-announce] 20220322 [SECURITY] [DLA 2960-1] apache2 security update
- FEDORA-2022-21264ec6db
- FEDORA-2022-78e3211c55
- https://www.tenable.com/security/tns-2022-08
- https://security.netapp.com/advisory/ntap-20220321-0001/
- https://www.tenable.com/security/tns-2022-09
- GLSA-202208-20
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-2022-23943 · CVE Program
- CVE-2022-23943 · NVD
- FIRST EPSS
- GHSA-778r-vp3x-2f8c · GitHub Advisory Database · CC BY 4.0
- CVE-2022-23943 · 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