CVE catalog
CVE-2023-24021
modsecurity-apache: CVE-2023-24021
- Severity
- High · CVSS 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.91% · Oct 25, 2026
Incorrect handling of '\0' bytes in file uploads in ModSecurity before 2.9.7 may allow for Web Application Firewall bypasses and buffer over-reads on the Web Application Firewall when executing rules that read the FILES_TMP_CONTENT collection.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | modsecurity-apache | sid | 2.9.13-1 | fixed |
| Debian | modsecurity-apache | forky | 2.9.13-1 | fixed |
| Debian | modsecurity-apache | trixie | 2.9.11-1+deb13u1 | fixed |
| Debian | modsecurity-apache | bookworm | 2.9.7-1+deb12u2 | fixed |
| Debian | modsecurity-apache | bookworm-security | 2.9.7-1+deb12u1 | fixed |
| Ubuntu | modsecurity-apache | pro | 2.9.3-3 | vulnerable |
| Ubuntu | modsecurity-apache | pro | 2.9.5-1 | vulnerable |
| Ubuntu | modsecurity-apache | pro | 2.9.5-1ubuntu0.1~esm1 | fixed |
| Ubuntu | modsecurity-apache | 20.04 | 2.9.3-1 | vulnerable |
| Ubuntu | modsecurity-apache | 20.04 | 2.9.3-1ubuntu0.1 | fixed |
| Suse | apache2-mod_security2 | linux enterprise high performance computing 15 sp1-ltss | 2.9.2-150000.3.9.1 | fixed |
| Suse | apache2-mod_security2 | linux enterprise high performance computing 15 sp2-ltss | 2.9.2-150000.3.9.1 | fixed |
| Suse | apache2-mod_security2 | linux enterprise high performance computing 15 sp3-espos | 2.9.2-150000.3.9.1 | fixed |
| Suse | apache2-mod_security2 | linux enterprise high performance computing 15 sp3-ltss | 2.9.2-150000.3.9.1 | fixed |
| Suse | apache2-mod_security2 | linux enterprise real time 15 sp3 | 2.9.2-150000.3.9.1 | fixed |
| Suse | apache2-mod_security2 | linux enterprise server 15 sp1-ltss | 2.9.2-150000.3.9.1 | fixed |
| Suse | apache2-mod_security2 | linux enterprise server 15 sp2-ltss | 2.9.2-150000.3.9.1 | fixed |
| Suse | apache2-mod_security2 | linux enterprise server 15 sp3-ltss | 2.9.2-150000.3.9.1 | fixed |
| Suse | apache2-mod_security2 | linux enterprise server for sap applications 15 sp1 | 2.9.2-150000.3.9.1 | fixed |
| Suse | apache2-mod_security2 | linux enterprise server for sap applications 15 sp2 | 2.9.2-150000.3.9.1 | fixed |
| Suse | apache2-mod_security2 | linux enterprise server for sap applications 15 sp3 | 2.9.2-150000.3.9.1 | fixed |
| Suse | apache2-mod_security2 | manager proxy 4.2 | 2.9.2-150000.3.9.1 | fixed |
| Suse | apache2-mod_security2 | manager retail branch server 4.2 | 2.9.2-150000.3.9.1 | fixed |
| Suse | apache2-mod_security2 | manager server 4.2 | 2.9.2-150000.3.9.1 | fixed |
| Suse | apache2-mod_security2 | enterprise storage 7 | 2.9.2-150000.3.9.1 | fixed |
| Suse | apache2-mod_security2 | enterprise storage 7.1 | 2.9.2-150000.3.9.1 | fixed |
| Suse | apache2-mod_security2 | linux enterprise module for server applications 15 sp4 | 2.9.4-150400.3.6.1 | fixed |
| Opensuse | apache2-mod_security2 | leap 15.4 | 2.9.4-150400.3.6.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | modsecurity-apache | source | sid | 2.9.7-1 | not yet assigned | Not reported | [1029329] |
| Debian | modsecurity-apache | source | forky | 2.9.7-1 | not yet assigned | Not reported | [1029329] |
| Debian | modsecurity-apache | source | trixie | 2.9.7-1 | not yet assigned | Not reported | [1029329] |
| Debian | modsecurity-apache | source | bookworm | 2.9.7-1 | not yet assigned | Not reported | [1029329] |
| Ubuntu | modsecurity-apache | deb | pro | 2.9.5-1ubuntu0.1~esm1 | Not reported | UBUNTU-CVE-2023-24021 | Not reported |
| Ubuntu | modsecurity-apache | deb | 20.04 | 2.9.3-1ubuntu0.1 | Not reported | UBUNTU-CVE-2023-24021 | Not reported |
| Suse | apache2-mod_security2 | rpm | linux enterprise high performance computing 15 sp1-ltss | 2.9.2-150000.3.9.1 | Not reported | SUSE-SU-2023:0447-1 | Not reported |
| Suse | apache2-mod_security2 | rpm | linux enterprise high performance computing 15 sp2-ltss | 2.9.2-150000.3.9.1 | Not reported | SUSE-SU-2023:0447-1 | Not reported |
| Suse | apache2-mod_security2 | rpm | linux enterprise high performance computing 15 sp3-espos | 2.9.2-150000.3.9.1 | Not reported | SUSE-SU-2023:0447-1 | Not reported |
| Suse | apache2-mod_security2 | rpm | linux enterprise high performance computing 15 sp3-ltss | 2.9.2-150000.3.9.1 | Not reported | SUSE-SU-2023:0447-1 | Not reported |
| Suse | apache2-mod_security2 | rpm | linux enterprise real time 15 sp3 | 2.9.2-150000.3.9.1 | Not reported | SUSE-SU-2023:0447-1 | Not reported |
| Suse | apache2-mod_security2 | rpm | linux enterprise server 15 sp1-ltss | 2.9.2-150000.3.9.1 | Not reported | SUSE-SU-2023:0447-1 | Not reported |
| Suse | apache2-mod_security2 | rpm | linux enterprise server 15 sp2-ltss | 2.9.2-150000.3.9.1 | Not reported | SUSE-SU-2023:0447-1 | Not reported |
| Suse | apache2-mod_security2 | rpm | linux enterprise server 15 sp3-ltss | 2.9.2-150000.3.9.1 | Not reported | SUSE-SU-2023:0447-1 | Not reported |
| Suse | apache2-mod_security2 | rpm | linux enterprise server for sap applications 15 sp1 | 2.9.2-150000.3.9.1 | Not reported | SUSE-SU-2023:0447-1 | Not reported |
| Suse | apache2-mod_security2 | rpm | linux enterprise server for sap applications 15 sp2 | 2.9.2-150000.3.9.1 | Not reported | SUSE-SU-2023:0447-1 | Not reported |
| Suse | apache2-mod_security2 | rpm | linux enterprise server for sap applications 15 sp3 | 2.9.2-150000.3.9.1 | Not reported | SUSE-SU-2023:0447-1 | Not reported |
| Suse | apache2-mod_security2 | rpm | manager proxy 4.2 | 2.9.2-150000.3.9.1 | Not reported | SUSE-SU-2023:0447-1 | Not reported |
| Suse | apache2-mod_security2 | rpm | manager retail branch server 4.2 | 2.9.2-150000.3.9.1 | Not reported | SUSE-SU-2023:0447-1 | Not reported |
| Suse | apache2-mod_security2 | rpm | manager server 4.2 | 2.9.2-150000.3.9.1 | Not reported | SUSE-SU-2023:0447-1 | Not reported |
| Suse | apache2-mod_security2 | rpm | enterprise storage 7 | 2.9.2-150000.3.9.1 | Not reported | SUSE-SU-2023:0447-1 | Not reported |
| Suse | apache2-mod_security2 | rpm | enterprise storage 7.1 | 2.9.2-150000.3.9.1 | Not reported | SUSE-SU-2023:0447-1 | Not reported |
| Suse | apache2-mod_security2 | rpm | linux enterprise module for server applications 15 sp4 | 2.9.4-150400.3.6.1 | Not reported | SUSE-SU-2023:0431-1 | Not reported |
| Opensuse | apache2-mod_security2 | rpm | leap 15.4 | 2.9.4-150400.3.6.1 | Not reported | SUSE-SU-2023:0431-1 | Not reported |
OpenFactory catalog packages
Matching against OpenFactory catalog package versions is in progress.
References
- [https://ftp.suse.com/pub/projects/security/csaf/suse-su-2023_0431-1.json]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2023-24021]
- [https://osv.dev/vulnerability/SUSE-SU-2023:0431-1]
- [https://osv.dev/vulnerability/SUSE-SU-2023:0447-1]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2023-24021]
- [https://security-tracker.debian.org/tracker/CVE-2023-24021]
- [https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-24021.json]
- [https://wid.cert-bund.de/.well-known/csaf/white/2023/wid-sec-w-2023-2031.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]