bogofilter flex input long word buffer overflow
| bogofilter-long-word-bo (24119) |  High Risk |
Description:
bogofilter is vulnerable to a heap-based buffer overflow, caused by improper bounds checking flex's input buffer. By creating a malicious email containing a word with length greater than 16,384 bytes, a remote attacker could overflow a buffer and cause the application to crash and possibly execute arbitrary code on the system, once bogofilter processes the malicious email.
*CVSS:
| Base Score: | 7 |
| Access Vector: | Remote |
| Access Complexity: | Low |
| Authentication: | Not Required |
| Confidentiality Impact: | Partial |
| Integrity Impact: | Partial |
| Availability Impact: | Partial |
| Temporal Score: | 5.2 |
| Exploitability: | Unproven |
| Remediation Level: | Official-Fix |
| Report Confidence: | Confirmed |
Consequences:
Gain Access
Remedy:
Upgrade to the latest version of bogofilter (1.0.1 or later), as listed in Bogofilter Security Advisory bogofilter-SA-2005-02. See References.
References:
- Bogfilter Security Advisory bogofilter-SA-2005-02: bogofilter/bogolexer heap buffer overrun with words > 16 kBytes (version 0.96.2).
- SourceForge.net: bogofilter -- Fast Bayesian Spam Filter.
- BID-16171: Bogofilter Multiple Remote Buffer Overflow Vulnerabilities
- CVE-2005-4592: Heap-based buffer overflow in bogofilter and bogolexer 0.96.2 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via words that are longer than the input buffer used by flex.
- SA18352: Bogofilter Two Denial of Service Vulnerabilities
- SUSE-SR:2006:003: SUSE Security Summary Report
- VUPEN/ADV-2006-0100: Bogofilter Unicode Database and Bogolexer Denial of Service Issues
Platforms Affected:
- bogofilter bogofilter 0.96.2
Reported:
Jan 02, 2006
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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.