Microsoft Outlook 2000, 2002, and 2003 allows user-assisted remote attackers to cause a denial of service (memory exhaustion and interrupted mail recovery) via malformed e-mail header information, possibly related to (1) long subject lines or (2) large numbers of recipients in To or CC headers.
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2007/ms07-003
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