MIME-compliant email client attachment buffer overflow
| outlook-long-name (1217) |  High Risk |
Description:
Many popular MIME-compliant email clients are vulnerable to a denial of service attack caused by a buffer overflow in the handling of certain headers. By sending a specially-crafted mail message, an attacker can overflow a buffer and crash another user's client. It may be possible to use this vulnerability to execute arbitrary commands on the victim's computer.
Consequences:
Gain Access
Remedy:
Upgrade to the latest version of Sendmail (8.9.1a or later), as listed in CERT Advisory CA-1998-10. See References.
For Microsoft Outlook:
Apply the appropriate patch for your system, as listed in Microsoft Security Bulletin MS98-008. See References.
For other distributions:
Contact your vendor for upgrade or patch information.
References:
- AusCERT Advisory AA-98.02: Microsoft Outlook Overrun Vulnerability.
- AusCERT Advisory AA-98.04: Sendmail, Inc. Patch for MIME Buffer Overflows.
- CERT Advisory CA-1998-10: Buffer Overflow in MIME-aware Mail and News Clients.
- CIAC Information Bulletin I-077b: Mime Name Vulnerability in Outlook and Messenger.
- Microsoft Security Bulletin MS98-008: Update Available For Long file name Security Issue.
- Netscape Security Update, August 14, 1998: Long Filename Mail Vulnerability.
- Sendmail 8.9.1a patch: MIME Buffer Overflows.
- Sun Microsystems, Inc. Security Bulletin #00175: mailtool.
- BID-125: Multiple Vendor Buffer Overflow in MIME-aware Mail and News Clients Vulnerability
- BID-685: Berkeley Sendmail MIME Vulnerability
- CVE-1999-0004: MIME buffer overflow in email clients, e.g. Solaris mailtool and Outlook.
- US-CERT VU#5648: Buffer Overflows in various email clients
Platforms Affected:
- Microsoft Windows 95
- Microsoft Windows 98
- Microsoft Windows NT 4.0
- Unix Unix
- Various vendors Any application
Reported:
Aug 06, 1998
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