Bug 445003 (CVE-2008-0599)
| Summary: | CVE-2008-0599 php: buffer overflow in a CGI path translation | ||
|---|---|---|---|
| Product: | [Other] Security Response | Reporter: | Josh Bressers <bressers> |
| Component: | vulnerability | Assignee: | Red Hat Product Security <security-response-team> |
| Status: | CLOSED ERRATA | QA Contact: | |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | unspecified | CC: | jorton |
| Target Milestone: | --- | Keywords: | Reopened, Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | 5.2.6-2.fc9 | Doc Type: | Bug Fix |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2010-03-29 09:45:56 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | 445925 | ||
| Bug Blocks: | |||
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Description
Josh Bressers
2008-05-02 17:59:50 UTC
This issue seems to have been introduced in the following commit: http://cvs.php.net/viewvc.cgi/php-src/sapi/cgi/cgi_main.c?diff_format=u&view=diff&r1=1.323&r2=1.324 Affected code first occurred in released PHP version 5.2.3. In previous versions, env_path_info was not checked to be non-NULL, possibly causing crash of php interpreter launched to handle CGI request (unlikely, as PATH_INFO environment variable is set by web server). Whether or not PATH_INFO is present in the environment is under the control of the remote user. But this code path can only be reached if DOCUMENT_ROOT is not set (the preceding "if" condition on env_document_root). That will never happen if /usr/bin/php-cgi is being executed via httpd mod_cgi. It does look like it's normal that DOCUMENT_ROOT is not passed through if php-cgi is being executed via FastCGI, however. In that case, it could cause a NULL pointer dereference and the php-cgi process would be recycled by the fastcgi parent; a very minor DoS. Not sure if we actually ship any FastCGI servers, though. So I'd say, this is severity=Low. This issue does not affect the version of PHP as shipped with Red Hat Enterprise Linux 2.1, 3, 4, or 5. php-5.2.6-2.fc8 has been pushed to the Fedora 8 stable repository. If problems still persist, please make note of it in this bug report. php-5.2.6-2.fc9 has been pushed to the Fedora 9 stable repository. If problems still persist, please make note of it in this bug report. |