Red Hat Security Advisory 2012-0103-01 - SquirrelMail is a standards-based webmail package written in PHP. A cross-site scripting flaw was found in the way SquirrelMail performed the sanitization of HTML style tag content. A remote attacker could use this flaw to send a specially-crafted Multipurpose Internet Mail Extensions message that, when opened by a victim, would lead to arbitrary web script execution in the context of their SquirrelMail session. Multiple cross-site scripting flaws were found in SquirrelMail. A remote attacker could possibly use these flaws to execute arbitrary web script in the context of a victim's SquirrelMail session.
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Apple Security Advisory 2012-02-01-1 - Apple has addressed 48 security vulnerabilities. These issues existed in packages such as Address Book, Apache, CFNetwork, ColorSync, CoreAudio, CoreMedia, CoreText, curl and much more.
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Mandriva Linux Security Advisory 2010-120 - A vulnerability was reported in the SquirrelMail Mail Fetch plugin, wherein (when the plugin is activated by the administrator) a user is allowed to specify (without restriction) any port number for their external POP account settings. While the intention is to allow users to access POP3 servers using non-standard ports, this also allows malicious users to effectively port-scan any server through their SquirrelMail service (especially note that when a SquirrelMail server resides on a network behind a firewall, it may allow the user to explore the network topography (DNS scan) and services available (port scan) on the inside of (behind) that firewall. As this vulnerability is only exploitable post-authentication, and better more specific port scanning tools are freely available, we consider this vulnerability to be of very low severity. It has been fixed by restricting the allowable POP port numbers. The updated packages have been patched to correct this issue.
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