Yahoo! Messenger IMvironment buffer overflow
| yahoo-messenger-imvironment-bo (8265) |  Low Risk |
Description:
Yahoo! Messenger is vulnerable to a denial of service attack, caused by a buffer overflow in the IMvironment field of the Yahoo protocol. By sending a message containing an overly large IMvironment field using a malicious Yahoo! Messenger client, a remote attacker could overflow a buffer and cause the recipient's Messenger client to crash.
Consequences:
Denial of Service
Remedy:
Upgrade to the latest version of Yahoo! Messenger (5.0 Build 1065 or later), available from the Yahoo! Messenger Web site. See References.
References:
- BugTraq Mailing List, Thu Feb 21 2002 - 11:03:57 CST: Remote crashes in Yahoo messenger.
- CERT Advisory CA-2002-16: Multiple Vulnerabilities in Yahoo! Messenger.
- Yahoo! Messenger Web site: Download Yahoo! Messenger.
- BID-4162: Yahoo! Messenger Message Field Overflow Vulnerability
- BID-4163: Yahoo! Messenger IMvironment Field Overflow Vulnerability
- CVE-2002-0320: Buffer overflow in Yahoo! Messenger 5.0 allows remote attackers to cause a denial of service and possibly execute arbitrary code via a long (1) message or (2) IMvironment field.
- US-CERT VU#419419: Yahoo! Messenger contains buffer overflow in message field
- US-CERT VU#887319: Yahoo! Messenger contains buffer overflow in IMvironment field
Platforms Affected:
- Yahoo Messenger 5.0
Reported:
Feb 21, 2002
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