Debian Security Advisory
DLA-3283-1 modsecurity-apache -- LTS security update
- Date Reported:
- 26 Jan 2023
- Affected Packages:
- Security database references:
- In the Debian bugtracking system: Bug 1029329.
In Mitre's CVE dictionary: CVE-2022-48279, CVE-2023-24021.
- More information:
Multiple issues were found in modsecurity-apache, open source, cross platform web application firewall (WAF) engine for Apache which allows remote attackers to bypass the applications firewall and other unspecified impact.
In ModSecurity before 2.9.6 and 3.x before 3.0.8, HTTP multipart requests were incorrectly parsed and could bypass the Web Application Firewall. NOTE: this is related to CVE-2022-39956 but can be considered independent changes to the ModSecurity (C language) codebase.
Incorrect handling of null-bytes in file uploads in ModSecurity before 2.9.7 may allow for Web Application Firewall bypasses and buffer overflows on the Web Application Firewall when executing rules reading the FILES_TMP_CONTENT collection.
For Debian 10 buster, these problems have been fixed in version 2.9.3-1+deb10u2.
We recommend that you upgrade your modsecurity-apache packages.
For the detailed security status of modsecurity-apache please refer to its security tracker page at: https://security-tracker.debian.org/tracker/modsecurity-apache
Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS