This Metasploit module exploits an out-of-bounds access flaw in Firefox 7 and 8 (versions 8.0.1 and below). The notification of nsSVGValue observers via nsSVGValue::NotifyObservers(x,y) uses a loop which can result in an out-of-bounds access to attacker-controlled memory. The mObserver ElementAt() function (which picks up pointers), does not validate if a given index is out of bound. If a custom observer of nsSVGValue is created, which removes elements from the original observer, and memory layout is manipulated properly, the ElementAt() function might pick up an attacker provided pointer, which can be leveraged to gain remote arbitrary code execution.
94acb924f037607a74196ffbd40dc6b26726a6b5e2a13e1caa089d6e3b0c2406Zero Day Initiative Advisory 12-056 - This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Mozilla Firefox. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the handling of nsSVGValue observers. A certain method call can be made to loop excessively causing an out-of-bounds memory access. By abusing this behavior an attacker can ensure this memory is under control and leverage the situation to achieve remote code execution under the context of the user running the browser.
e23cbda38aef4fa8e327d43e94f029544e7d3574236da08ee39385b384e0cbfeUbuntu Security Notice 1401-2 - USN-1401-1 fixed vulnerabilities in Xulrunner. This update provides the corresponding fixes for Thunderbird. It was discovered that a flaw in the Mozilla SVG implementation could result in an out-of-bounds memory access if SVG elements were removed during a DOMAttrModified event handler. If the user were tricked into opening a specially crafted page, an attacker could exploit this to cause a denial of service via application crash. Atte Kettunen discovered a use-after-free vulnerability in the Gecko Rendering Engine's handling of SVG animations. An attacker could potentially exploit this to execute arbitrary code with the privileges of the user invoking the Xulrunner based application. Atte Kettunen discovered an out of bounds read vulnerability in the Gecko Rendering Engine's handling of SVG Filters. An attacker could potentially exploit this to make data from the user's memory accessible to the page content. Soroush Dalili discovered that the Gecko Rendering Engine did not adequately protect against dropping JavaScript links onto a frame. A remote attacker could, through cross-site scripting (XSS), exploit this to modify the contents of the frame or steal confidential data. Mariusz Mlynski discovered that the Home button accepted JavaScript links to set the browser Home page. An attacker could use this vulnerability to get the script URL loaded in the privileged about:sessionrestore context. Bob Clary, Vincenzo Iozzo, and Willem Pinckaers discovered memory safety issues affecting Firefox. If the user were tricked into opening a specially crafted page, an attacker could exploit these to cause a denial of service via application crash, or potentially execute code with the privileges of the user invoking Firefox. Various other issues were also addressed.
18ff4554ba8f49486a34fb7d8714a434cb13cd31e28f8877c79af56223cd9cedUbuntu Security Notice 1401-1 - It was discovered that a flaw in the Mozilla SVG implementation could result in an out-of-bounds memory access if SVG elements were removed during a DOMAttrModified event handler. If the user were tricked into opening a specially crafted page, an attacker could exploit this to cause a denial of service via application crash. Atte Kettunen discovered a use-after-free vulnerability in the Gecko Rendering Engine's handling of SVG animations. An attacker could potentially exploit this to execute arbitrary code with the privileges of the user invoking the Xulrunner based application. Atte Kettunen discovered an out of bounds read vulnerability in the Gecko Rendering Engine's handling of SVG Filters. An attacker could potentially exploit this to make data from the user's memory accessible to the page content. Various other issues were also addressed.
72dd23ef0655b7dc1ad658c36b42d88462bc63744bcfe1aa8b0aa2db6ebbcf36Mandriva Linux Security Advisory 2012-031 - Security issues were identified and fixed in mozilla firefox. Security researcher Atte Kettunen from OUSPG found two issues with Firefox's handling of SVG using the Address Sanitizer tool. Various other issues were also addressed.
d92ffa90f8b38deb02160aa118083d4bbf9b53eff209ebe6ac726f72ce1b0ce4Ubuntu Security Notice 1343-1 - Alexandre Poirot, Chris Blizzard, Kyle Huey, Scoobidiver, Christian Holler, David Baron, Gary Kwong, Jim Blandy, Bob Clary, Jesse Ruderman, Marcia Knous, and Rober Longson discovered several memory safety issues which could possibly be exploited to crash Thunderbird or execute arbitrary code as the user that invoked Thunderbird. Aki Helin discovered a crash in the YARR regular expression library that could be triggered by javascript in web content. Various other issues were also addressed.
b320552fd3ebcdce074815e44c55cd3a05de20c7d4838165adb6112d9accbbbfUbuntu Security Notice 1306-2 - USN-1306-1 fixed vulnerabilities in Firefox. This update provides updated Mozvoikko and ubufox packages for use with Firefox 9. Alexandre Poirot, Chris Blizzard, Kyle Huey, Scoobidiver, Christian Holler, David Baron, Gary Kwong, Jim Blandy, Bob Clary, Jesse Ruderman, Marcia Knous, and Rober Longson discovered several memory safety issues which could possibly be exploited to crash Firefox or execute arbitrary code as the user that invoked Firefox. Various other issues were also addressed.
fb1b31af3076d871d28a266beb07383380a0af8d461b803c1151a07c03fc997cUbuntu Security Notice 1306-1 - Alexandre Poirot, Chris Blizzard, Kyle Huey, Scoobidiver, Christian Holler, David Baron, Gary Kwong, Jim Blandy, Bob Clary, Jesse Ruderman, Marcia Knous, and Rober Longson discovered several memory safety issues which could possibly be exploited to crash Firefox or execute arbitrary code as the user that invoked Firefox. Aki Helin discovered a crash in the YARR regular expression library that could be triggered by javascript in web content. Various other issues were also addressed.
e2aa447b98554257f109cac90d0c5d53f206d2e9d086a68a789b01c68ee3ed64Mandriva Linux Security Advisory 2011-192 - Security issues were identified and fixed in mozilla firefox and thunderbird. The SVG implementation in Mozilla Firefox 8.0, Thunderbird 8.0, and SeaMonkey 2.5 does not properly interact with DOMAttrModified event handlers, which allows remote attackers to cause a denial of service or possibly have unspecified other impact via vectors involving removal of SVG elements. Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox 4.x through 8.0, Thunderbird 5.0 through 8.0, and SeaMonkey before 2.6 allow remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via vectors that trigger a compartment mismatch associated with the nsDOMMessageEvent::GetData function, and unknown other vectors. Various other issues were also addressed.
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