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[ GLSA 200903-23 ] Adobe Flash Player: Multiple vulnerabilities
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PostPosted: Tue Mar 10, 2009 11:26 pm    Post subject: [ GLSA 200903-23 ] Adobe Flash Player: Multiple vulnerabilit Reply with quote

Gentoo Linux Security Advisory

Title: Adobe Flash Player: Multiple vulnerabilities (GLSA 200903-23)
Severity: normal
Exploitable: remote
Date: March 10, 2009
Updated: May 28, 2009
Bug(s): #239543, #251496, #260264
ID: 200903-23


Multiple vulnerabilities have been identified, the worst of which allow
arbitrary code execution on a user's system via a malicious Flash file.


The Adobe Flash Player is a renderer for the popular SWF file format,
which is commonly used to provide interactive websites, digital
experiences and mobile content.

Affected Packages

Package: www-plugins/adobe-flash
Vulnerable: <
Unaffected: >=
Architectures: All supported architectures


Multiple vulnerabilities have been discovered in Adobe Flash Player:
  • The access scope of SystemsetClipboard() allows ActionScript
    programs to execute the method without user interaction
  • The access scope of FileReference.browse() and allows ActionScript programs to execute the
    methods without user interaction (CVE-2008-4401).
  • The Settings Manager controls can be disguised as normal graphical
    elements. This so-called "clickjacking" vulnerability was disclosed by
    Robert Hansen of SecTheory, Jeremiah Grossman of WhiteHat Security,
    Eduardo Vela, Matthew Mastracci of DotSpots, and Liu Die Yu of
    TopsecTianRongXin (CVE-2008-4503).
  • Adan Barth (UC Berkely) and Collin Jackson (Stanford University)
    discovered a flaw occurring when interpreting HTTP response headers
  • Nathan McFeters and Rob Carter of Ernst and Young's Advanced
    Security Center are credited for finding an unspecified vulnerability
    facilitating DNS rebinding attacks (CVE-2008-4819).
  • When used in a Mozilla browser, Adobe Flash Player does not
    properly interpret jar: URLs, according to a report by Gregory
    Fleischer of (CVE-2008-4821).
  • Alex "kuza55" K. reported that Adobe Flash Player does not properly
    interpret policy files (CVE-2008-4822).
  • The vendor credits Stefano Di Paola of Minded Security for
    reporting that an ActionScript attribute is not interpreted properly
  • Riley Hassell and Josh Zelonis of iSEC Partners reported multiple
    input validation errors (CVE-2008-4824).
  • The aforementioned researchers also reported that ActionScript 2
    does not verify a member element's size when performing several known
    and other unspecified actions, that DefineConstantPool accepts an
    untrusted input value for a "constant count" and that character
    elements are not validated when retrieved from a data structure,
    possibly resulting in a null-pointer dereference (CVE-2008-5361,
    CVE-2008-5362, CVE-2008-5363).
  • The vendor reported an unspecified arbitrary code execution
    vulnerability (CVE-2008-5499).
  • Liu Die Yu of TopsecTianRongXin reported an unspecified flaw in the
    Settings Manager related to "clickjacking" (CVE-2009-0114).
  • The vendor credits Roee Hay from IBM Rational Application Security
    for reporting an input validation error when processing SWF files
  • Javier Vicente Vallejo reported via the iDefense VCP that Adobe
    Flash does not remove object references properly, leading to a freed
    memory dereference (CVE-2009-0520).
  • Josh Bressers of Red Hat and Tavis Ormandy of the Google Security
    Team reported an untrusted search path vulnerability


A remote attacker could entice a user to open a specially crafted SWF
file, possibly resulting in the execution of arbitrary code with the
privileges of the user or a Denial of Service (crash). Furthermore a
remote attacker could gain access to sensitive information, disclose
memory contents by enticing a user to open a specially crafted PDF file
inside a Flash application, modify the victim's clipboard or render it
temporarily unusable, persuade a user into uploading or downloading
files, bypass security restrictions with the assistance of the user to
gain access to camera and microphone, conduct Cross-Site Scripting and
HTTP Header Splitting attacks, bypass the "non-root domain policy" of
Flash, and gain escalated privileges.


There is no known workaround at this time.


All Adobe Flash Player users should upgrade to the latest version:
# emerge --sync
    # emerge --ask --oneshot --verbose ">=www-plugins/adobe-flash-"



Last edited by GLSA on Mon Feb 14, 2011 4:27 am; edited 4 times in total
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