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Vulnerability Note VU#606700
file integer overflow vulnerability
OverviewThe file program contains a vulnerability that may allow an attacker to execute arbitrary code or create a denial-of-service condition.
I. Descriptionfile is a program for Unix-like operating systems that is used to determine what type of data is contained in a file.
file contains a buffer overflow vulnerability that is caused by an integer overflow in the file_printf function. To trigger the overflow, an attacker would need to convince a user to run a vulnerable version of file on a specially crafted file.
II. ImpactAn attacker may be able to execute arbitrary code with the permissions of the user running the vulnerable version of file or cause the program to crash, creating a denial-of-service condition
III. SolutionUpgrade
Version 4.20 of file was released to address this issue. Note that operating systems may ship with different versions of the file program. See the systems affected portion of this document for information about specific vendors.
Do not run file as root
Running the file program with a limited user account may partially mitigate the impact of successful exploitation of vulnerability.
Systems Affected
| Vendor | Status | Date Notified | Date Updated |
|---|
| Apache HTTP Server Project | Unknown | 26-Mar-2007 |
| Apple Computer, Inc. | Unknown | 20-Mar-2007 |
| Conectiva Inc. | Unknown | 20-Mar-2007 |
| Cray Inc. | Unknown | 20-Mar-2007 |
| Debian GNU/Linux | Vulnerable | 6-Apr-2007 |
| EMC, Inc. (formerly Data General Corporation) | Unknown | 20-Mar-2007 |
| Engarde Secure Linux | Unknown | 20-Mar-2007 |
| F5 Networks, Inc. | Unknown | 20-Mar-2007 |
| Fedora Project | Unknown | 20-Mar-2007 |
| FreeBSD, Inc. | Unknown | 20-Mar-2007 |
| Fujitsu | Unknown | 20-Mar-2007 |
| Gentoo Linux | Vulnerable | 6-Apr-2007 |
| Hewlett-Packard Company | Unknown | 20-Mar-2007 |
| Hitachi | Unknown | 20-Mar-2007 |
| IBM Corporation | Unknown | 20-Mar-2007 |
| IBM Corporation (zseries) | Unknown | 20-Mar-2007 |
| IBM eServer | Unknown | 20-Mar-2007 |
| Immunix Communications, Inc. | Unknown | 20-Mar-2007 |
| Ingrian Networks, Inc. | Unknown | 20-Mar-2007 |
| Juniper Networks, Inc. | Unknown | 20-Mar-2007 |
| Mandriva, Inc. | Vulnerable | 26-Mar-2007 |
| Microsoft Corporation | Not Vulnerable | 23-Mar-2007 |
| MontaVista Software, Inc. | Unknown | 20-Mar-2007 |
| NEC Corporation | Unknown | 20-Mar-2007 |
| NetBSD | Unknown | 20-Mar-2007 |
| Nokia | Unknown | 20-Mar-2007 |
| Novell, Inc. | Unknown | 20-Mar-2007 |
| OpenBSD | Unknown | 20-Mar-2007 |
| Openwall GNU/*/Linux | Vulnerable | 26-Mar-2007 |
| QNX, Software Systems, Inc. | Unknown | 20-Mar-2007 |
| Red Hat, Inc. | Vulnerable | 23-Mar-2007 |
| Silicon Graphics, Inc. | Unknown | 20-Mar-2007 |
| Slackware Linux Inc. | Vulnerable | 6-Apr-2007 |
| Sony Corporation | Unknown | 20-Mar-2007 |
| Sun Microsystems, Inc. | Unknown | 20-Mar-2007 |
| SUSE Linux | Vulnerable | 6-Apr-2007 |
| The SCO Group | Unknown | 20-Mar-2007 |
| Trustix Secure Linux | Vulnerable | 6-Apr-2007 |
| Turbolinux | Unknown | 20-Mar-2007 |
| Ubuntu | Vulnerable | 23-Mar-2007 |
| Unisys | Unknown | 20-Mar-2007 |
| Wind River Systems, Inc. | Unknown | 20-Mar-2007 |
References
http://mx.gw.com/pipermail/file/2007/000161.html
ftp://ftp.astron.com/pub/file/file-4.20.tar.gz
https://www.securecoding.cert.org/confluence/x/RgE
http://secunia.com/advisories/24548/
http://www.ubuntu.com/usn/usn-439-1
http://secunia.com/advisories/24592/
http://www.mandriva.com/security/advisories?name=MDKSA-2007:067
http://rhn.redhat.com/errata/RHSA-2007-0124.html
https://issues.rpath.com/browse/RPL-1148
http://www.securityfocus.com/bid/2302
http://secunia.com/advisories/25133/
http://secunia.com/advisories/25393/
http://docs.info.apple.com/article.html?artnum=305530
Credit
Thanks to Jean-Sébastien Guay-Leroux and Christos Zoulas for information that was used in this report.
This document was written by Ryan Giobbi.
Other Information
| Date Public: | 2007-03-19 |
| Date First Published: | 2007-03-26 |
| Date Last Updated: | 2007-10-16 |
| CERT Advisory: | |
| CVE-ID(s): | CVE-2007-1536 |
| NVD-ID(s): | CVE-2007-1536 |
| US-CERT Technical Alerts: | |
| Metric: | 1.62 |
| Document Revision: | 44 |
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