CVE-2010-1989 (http://nvd.nist.gov/nvd.cfm?cvename=CVE-2010-1989): Opera 9.52 executes a mail application in situations where an IMG element has a SRC attribute that is a redirect to a mailto: URL, which allows remote attackers to cause a denial of service (excessive application launches) via an HTML document with many images, a related issue to CVE-2010-0181.
CVE-2010-2121 (http://nvd.nist.gov/nvd.cfm?cvename=CVE-2010-2121): Opera 9.52 allows remote attackers to cause a denial of service (resource consumption) via JavaScript code containing an infinite loop that creates IFRAME elements for invalid (1) news:// or (2) nntp:// URIs.
This issue was resolved and addressed in GLSA 201206-03 at http://security.gentoo.org/glsa/glsa-201206-03.xml by GLSA coordinator Sean Amoss (ackle).