| Name | CVE-2023-24021 |
| Description | 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-3283-1 |
| Debian Bugs | 1029329 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| modsecurity-apache (PTS) | bullseye | 2.9.3-3+deb11u2 | fixed |
| bullseye (security) | 2.9.3-3+deb11u1 | vulnerable |
| bookworm | 2.9.7-1 | fixed |
| sid, trixie | 2.9.8-1 | fixed |
The information below is based on the following data on fixed versions.
Notes
https://github.com/SpiderLabs/ModSecurity/pull/2857
https://github.com/SpiderLabs/ModSecurity/commit/4324f0ac59f8225aa44bc5034df60dbeccd1d334 (v2.9.7)