1596 matches found
Bypass of SOW protections allows cloning of protected nodes — Mozilla
Security researcher Cody Crews reported a mechanism to use the cloneNode method to bypass System Only Wrappers SOW and clone a protected node. This allows violation of the browser's same origin policy and could also lead to privilege escalation and the execution of arbitrary code...
World read and write access to app_tmp directory on Android — Mozilla
Security researcher Shuichiro Suzuki of the Fourteenforty Research Institute reported the apptmp directory is set to be world readable and writeable by Firefox for Android. This potentially allows for third party applications to replace or alter Firefox add-ons when downloaded because they are...
Miscellaneous memory safety hazards (rv:20.0 / rv:17.0.5) — Mozilla
Mozilla developers identified and fixed several memory safety bugs in the browser engine used in Firefox and other Mozilla-based products. Some of these bugs showed evidence of memory corruption under certain circumstances, and we presume that with enough effort at least some of these could be...
WebGL crash with Mesa graphics driver on Linux — Mozilla
Security researcher miaubiz used the Address Sanitizer tool to discover a crash in WebGL rendering when memory is freed that has not previously been allocated. This issue only affects Linux users who have Intel Mesa graphics drivers. The resulting crash could be potentially exploitable...
Out-of-bounds write in Cairo library — Mozilla
Security researcher Abhishek Arya Inferno of the Google Chrome Security Team used the Address Sanitizer tool to discover an out-of-bounds write in Cairo graphics library. When certain values are passed to it during rendering, Cairo attempts to use negative boundaries or sizes for boxes, leading t...
Use-after-free in HTML Editor — Mozilla
VUPEN Security, via TippingPoint's Zero Day Initiative, reported a use-after-free within the HTML editor when content script is run by the document.execCommand function while internal editor operations are occurring. This could allow for arbitrary code execution...
Web content bypass of COW and SOW security wrappers — Mozilla
Mozilla developer Bobby Holley discovered that it was possible to bypass some protections in Chrome Object Wrappers COW and System Only Wrappers SOW, making their prototypes mutable by web content. This could be used leak information from chrome objects and possibly allow for arbitrary code...
Out-of-bounds read in image rendering — Mozilla
Using the Address Sanitizer tool, security researcher Atte Kettunen from OUSPG found an out-of-bounds read while rendering GIF format images. This could cause a non-exploitable crash and could also attempt to render normally inaccessible data as part of the image...
Miscellaneous memory safety hazards (rv:19.0 / rv:17.0.3) — Mozilla
Mozilla developers identified and fixed several memory safety bugs in the browser engine used in Firefox and other Mozilla-based products. Some of these bugs showed evidence of memory corruption under certain circumstances, and we presume that with enough effort at least some of these could be...
Privacy leak in JavaScript Workers — Mozilla
Mozilla security researcher Frederik Braun discovered that since Firefox 15 the file system location of the active browser profile was available to JavaScript workers. While not dangerous by itself, this could potentially be combined with other vulnerabilities to target the profile in an attack...
Phishing on HTTPS connection through malicious proxy — Mozilla
Google security researcher Michal Zalewski reported an issue where the browser displayed the content of a proxy's 407 response if a user canceled the proxy's authentication prompt. In this circumstance, the addressbar will continue to show the requested site's address, including HTTPS addresses...
Wrapped WebIDL objects can be wrapped again — Mozilla
Mozilla developer Boris Zbarsky reported that in some circumstances a wrapped WebIDL object can be wrapped multiple times, overwriting the existing wrapped state. This could lead to an exploitable condition in rare cases...
Use-after-free in nsImageLoadingContent — Mozilla
Security researcher Nils reported a use-after-free in nsImageLoadingContent when content script is executed. This could allow for arbitrary code execution...
Use-after-free, out of bounds read, and buffer overflow issues found using Address Sanitizer — Mozilla
Security researcher Abhishek Arya Inferno of the Google Chrome Security Team used the Address Sanitizer tool to discover a series of use-after-free, out of bounds read, and buffer overflow problems rated as low to critical security issues in shipped software. Some of these issues are potentially...
Use-after-free in Javascript Proxy objects — Mozilla
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Use-after-free in Vibrate — Mozilla
Security researcher regenrecht reported, via TippingPoint's Zero Day Initiative, a use-after-free using the domDoc pointer within Vibrate library. This can lead to arbitrary code execution when exploited...
Memory corruption in XBL with XML bindings containing SVG — Mozilla
Security researcher Sviatoslav Chagaev reported that when using an XBL file containing multiple XML bindings with SVG content, a memory corruption can occur. In concern with remote XUL, this can lead to an exploitable crash...
Compartment mismatch with quickstubs returned values — Mozilla
Mozilla developer Boris Zbarsky reported reported a problem where jsval-returning quickstubs fail to wrap their return values, causing a compartment mismatch. This mismatch can cause garbage collection to occur incorrectly and lead to a potentially exploitable crash...
Chrome Object Wrapper (COW) bypass through changing prototype — Mozilla
Security researcher Mariusz Mlynski reported that it is possible to change the prototype of an object and bypass Chrome Object Wrappers COW to gain access to chrome privileged functions. This could allow for arbitrary code execution...
Buffer Overflow in Canvas — Mozilla
Security researcher miaubiz used the Address Sanitizer tool to discover a buffer overflow in Canvas when specific bad height and width values were given through HTML. This could lead to a potentially exploitable crash...
Miscellaneous memory safety hazards (rv:18.0/ rv:10.0.12 / rv:17.0.2) — Mozilla
Mozilla developers identified and fixed several memory safety bugs in the browser engine used in Firefox and other Mozilla-based products. Some of these bugs showed evidence of memory corruption under certain circumstances, and we presume that with enough effort at least some of these could be...
Mis-issued TURKTRUST certificates — Mozilla
Google reported to Mozilla that TURKTRUST, a certificate authority in Mozilla’s root program, had mis-issued two intermediate certificates to customers. The issue was not specific to Firefox but there was evidence that one of the certificates was used for man-in-the-middle MITM traffic management...
Use-after-free in ListenerManager — Mozilla
Security researcher regenrecht reported, via TippingPoint's Zero Day Initiative, a use-after-free within the ListenerManager when garbage collection is forced after data in listener objects have been allocated in some circumstances. This results in a use-after-free which can lead to arbitrary cod...
Buffer overflow in Javascript string concatenation — Mozilla
Security researcher pakt reported a flaw via TippingPoint's Zero Day Initiative that an integer overflow is possible when calculating the length for a Javascript string concatenation, which is then used for memory allocation. This results in a buffer overflow, leading to a potentially exploitable...
AutoWrapperChanger fails to keep objects alive during garbage collection — Mozilla
Mozilla developer Olli Pettay discovered that the AutoWrapperChanger class fails to keep some javascript objects alive during garbage collection. This can lead to an exploitable crash allowing for arbitrary code execution...
Crash due to handling of SSL on threads — Mozilla
Mozilla community member Jerry Baker reported a crashing issue found through Thunderbird when downloading messages over a Secure Sockets Layer SSL connection. This was caused by a bug in the networking code assuming that secure connections were entirely handled on the socket transport thread when...
Use-after-free when displaying table with many columns and column groups — Mozilla
Using the Address Sanitizer tool, security researcher Atte Kettunen from OUSPG discovered that the combination of large numbers of columns and column groups in a table could cause the array containing the columns during rendering to overwrite itself. This can lead to a user-after-free causing a...
Use-after-free and buffer overflow issues found using Address Sanitizer — Mozilla
Security researcher Abhishek Arya Inferno of the Google Chrome Security Team discovered a series critically rated of use-after-free, out of bounds read, and buffer overflow issues using the Address Sanitizer tool in shipped software. These issues are potentially exploitable, allowing for remote...
Use-after-free in serializeToStream — Mozilla
Security researcher regenrecht reported, via TippingPoint's Zero Day Initiative, a use-after-free in XMLSerializer by the exposing of serializeToStream to web content. This can lead to arbitrary code execution when exploited...
Privilege escalation through plugin objects — Mozilla
Security researcher Mariusz Mlynski reported that it is possible to open a chrome privileged web page through plugin objects through interaction with SVG elements. This could allow for arbitrary code execution...
Address space layout leaked in XBL objects — Mozilla
Mozilla security researcher Jesse Ruderman discovered that using the toString function of XBL objects can lead to inappropriate information leakage by revealing the address space layout instead of just the ID of the object. This layout information could potentially be used to bypass ASLR and othe...
Event manipulation in plugin handler to bypass same-origin policy — Mozilla
Mozilla security researcher Jesse Ruderman reported that events in the plugin handler can be manipulated by web content to bypass same-origin policy SOP restrictions. This can allow for clickjacking on malicious web pages...
Touch events are shared across iframes — Mozilla
Mozilla developer Wesley Johnston reported that when there are two or more iframes on the same HTML page, an iframe is able to see the touch events and their targets that occur within the other iframes on the page. If the iframes are from the same origin, they can also access the properties and...
URL spoofing in addressbar during page loads — Mozilla
Security researcher Masato Kinugawa found a flaw in which the displayed URL values within the addressbar can be spoofed by a page during loading. This allows for phishing attacks where a malicious page can spoof the identify of another site...
Memory corruption in str_unescape — Mozilla
Security researcher Scott Bell of Security-Assessment.com used the Address Sanitizer tool to discover a memory corruption in strunescape in the Javascript engine. This could potentially lead to arbitrary code execution...
Javascript: URLs run in privileged context on New Tab page — Mozilla
Security researcher [email protected] reported that if a javascript: URL is selected from the list of Firefox "new tab" page, the script will inherit the privileges of the privileged "new tab" page. This allows for the execution of locally installed programs if a user can be convinced to save a...
Crash when combining SVG text on path with CSS — Mozilla
Security researcher Jonathan Stephens discovered that combining SVG text on a path with the setting of CSS properties could lead to a potentially exploitable crash...
Use-after-free and buffer overflow issues found using Address Sanitizer — Mozilla
Security researcher Abhishek Arya Inferno of the Google Chrome Security Team discovered a series critically rated of use-after-free and buffer overflow issues using the Address Sanitizer tool in shipped software. These issues are potentially exploitable, allowing for remote code execution. We wou...
evalInSanbox location context incorrectly applied — Mozilla
Mozilla security researcher mozbugra4 reported that if code executed by the evalInSandbox function sets location.href, it can get the wrong subject principal for the URL check, ignoring the sandbox's Javascript context and gaining the context of evalInSandbox object. This can lead to malicious we...
Frames can shadow top.location — Mozilla
Security researcher Mariusz Mlynski reported that the location property can be accessed by binary plugins through top.location with a frame whose name attribute's value is set to "top". This can allow for possible cross-site scripting XSS attacks through plugins...
CSS and HTML injection through Style Inspector — Mozilla
Security researcher Mariusz Mlynski reported that when a maliciously crafted stylesheet is inspected in the Style Inspector, HTML and CSS can run in a chrome privileged context without being properly sanitized first. This can lead to arbitrary code execution...
Script entered into Developer Toolbar runs with chrome privileges — Mozilla
Security researcher Masato Kinugawa reported that when script is entered into the Developer Toolbar, it runs in a chrome privileged context. This allows for arbitrary code execution or cross-site scripting XSS if a user can be convinced to paste malicious code into the Developer Toolbar...
Improper character decoding in HZ-GB-2312 charset — Mozilla
Security researcher Masato Kinugawa found when HZ-GB-2312 charset encoding is used for text, the "" character will destroy another character near the chunk delimiter. This can lead to a cross-site scripting XSS attack in pages encoded in HZ-GB-2312...
XMLHttpRequest inherits incorrect principal within sandbox — Mozilla
Mozilla developer Gabor Krizsanits discovered that XMLHttpRequest objects created within sandboxes have the system principal instead of the sandbox principal. This can lead to cross-site request forgery CSRF or information theft via an add-on running untrusted code in a sandbox...
Buffer overflow while rendering GIF images — Mozilla
Security researcher Atte Kettunen from OUSPG used the Address Sanitizer tool to discover a buffer overflow while rendering GIF format images. This issue is potentially exploitable and could lead to arbitrary code execution...
Miscellaneous memory safety hazards (rv:17.0/ rv:10.0.11) — Mozilla
Mozilla developers identified and fixed several memory safety bugs in the browser engine used in Firefox and other Mozilla-based products. Some of these bugs showed evidence of memory corruption under certain circumstances, and we presume that with enough effort at least some of these could be...
XrayWrappers exposes chrome-only properties when not in chrome compartment — Mozilla
Mozilla developer Peter Van der Beken discovered that same-origin XrayWrappers expose chrome-only properties even when not in a chrome compartment. This can allow web content to get properties of DOM objects that are intended to be chrome-only...
Firefox installer DLL hijacking — Mozilla
Security researcher Robert Kugler reported that when a specifically named DLL file on a Windows computer is placed in the default downloads directory with the Firefox installer, the Firefox installer will load this DLL when it is launched. In circumstances where the installer is run by an...
Use-after-free, buffer overflow, and memory corruption issues found using Address Sanitizer — Mozilla
Security researcher miaubiz used the Address Sanitizer tool to discover a series critically rated of use-after-free, buffer overflow, and memory corruption issues in shipped software. These issues are potentially exploitable, allowing for remote code execution. We would also like to thank miaubiz...
Improper security filtering for cross-origin wrappers — Mozilla
Mozilla developer Bobby Holley reported that security wrappers filter at the time of property access, but once a function is returned, the caller can use this function without further security checks. This affects cross-origin wrappers, allowing for write actions on objects when only read actions...