Adobe Flash Player before 9.0.277.0 and 10.x before 10.1.53.64, and Adobe AIR before 2.0.2.12610, allows remote web servers to cause a denial of service (NULL pointer dereference and browser crash) by returning a different response when an HTTP request is sent a second time, as demonstrated by two responses that provide SWF files with different SWF version numbers.
itrc.hp.com/service/cki/docDisplay.do?docId=emr_na-c02273751
lists.apple.com/archives/security-announce/2010//Nov/msg00000.html
lists.opensuse.org/opensuse-security-announce/2008-11/msg00001.html
lists.opensuse.org/opensuse-security-announce/2010-06/msg00000.html
lists.opensuse.org/opensuse-security-announce/2010-06/msg00001.html
secunia.com/advisories/32759
secunia.com/advisories/40545
secunia.com/advisories/43026
security.gentoo.org/glsa/glsa-201101-09.xml
securityreason.com/securityalert/4401
securitytracker.com/id?1024085
securitytracker.com/id?1024086
support.apple.com/kb/HT4435
www.adobe.com/support/security/bulletins/apsb10-14.html
www.mochimedia.com/~matthew/flashcrash/
www.redhat.com/support/errata/RHSA-2010-0464.html
www.redhat.com/support/errata/RHSA-2010-0470.html
www.securityfocus.com/archive/1/496929/100/0/threaded
www.securityfocus.com/bid/31537
www.turbolinux.co.jp/security/2010/TLSA-2010-19j.txt
www.us-cert.gov/cas/techalerts/TA10-162A.html
www.vupen.com/english/advisories/2010/1421
www.vupen.com/english/advisories/2010/1432
www.vupen.com/english/advisories/2010/1434
www.vupen.com/english/advisories/2010/1453
www.vupen.com/english/advisories/2010/1482
www.vupen.com/english/advisories/2010/1522
www.vupen.com/english/advisories/2010/1793
www.vupen.com/english/advisories/2011/0192
exchange.xforce.ibmcloud.com/vulnerabilities/45630
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16302
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7187