Mozilla Firefox before 41.0, when reader mode is enabled, allows remote attackers to spoof the relationship between address-bar URLs and web content via a crafted web site.

MozillaFirefox was updated to Firefox 41.0 (bnc#947003)

Security issues fixed :

  - MFSA 2015-96/CVE-2015-4500/CVE-2015-4501 Miscellaneous     memory safety hazards

  - MFSA 2015-97/CVE-2015-4503 (bmo#994337) Memory leak in     mozTCPSocket to servers

  - MFSA 2015-98/CVE-2015-4504 (bmo#1132467) Out of bounds     read in QCMS library with ICC V4 profile attributes

  - MFSA 2015-99/CVE-2015-4476 (bmo#1162372) (Android only)     Site attribute spoofing on Android by pasting URL with     unknown scheme

  - MFSA 2015-100/CVE-2015-4505 (bmo#1177861) (Windows only)     Arbitrary file manipulation by local user through     Mozilla updater

  - MFSA 2015-101/CVE-2015-4506 (bmo#1192226) Buffer     overflow in libvpx while parsing vp9 format video

  - MFSA 2015-102/CVE-2015-4507 (bmo#1192401) Crash when     using debugger with SavedStacks in JavaScript

  - MFSA 2015-103/CVE-2015-4508 (bmo#1195976) URL spoofing     in reader mode

  - MFSA 2015-104/CVE-2015-4510 (bmo#1200004) Use-after-free     with shared workers and IndexedDB

  - MFSA 2015-105/CVE-2015-4511 (bmo#1200148) Buffer     overflow while decoding WebM video

  - MFSA 2015-106/CVE-2015-4509 (bmo#1198435) Use-after-free     while manipulating HTML media content

  - MFSA 2015-107/CVE-2015-4512 (bmo#1170390) Out-of-bounds     read during 2D canvas display on Linux 16-bit color     depth systems

  - MFSA 2015-108/CVE-2015-4502 (bmo#1105045) Scripted     proxies can access inner window

  - MFSA 2015-109/CVE-2015-4516 (bmo#904886) JavaScript     immutable property enforcement can be bypassed

  - MFSA 2015-110/CVE-2015-4519 (bmo#1189814) Dragging and     dropping images exposes final URL after redirects

  - MFSA 2015-111/CVE-2015-4520 (bmo#1200856, bmo#1200869)     Errors in the handling of CORS preflight request headers

  - MFSA 2015-112/CVE-2015-4517/CVE-2015-4521/CVE-2015-4522/     CVE-2015-7174/CVE-2015-7175/CVE-2015-7176/CVE-2015-7177/     CVE-2015-7180 Vulnerabilities found through code     inspection

  - MFSA 2015-113/CVE-2015-7178/CVE-2015-7179 (bmo#1189860,     bmo#1190526) (Windows only) Memory safety errors in     libGLES in the ANGLE graphics library

  - MFSA 2015-114 (bmo#1167498, bmo#1153672) (Windows only)     Information disclosure via the High Resolution Time API

The version of Mozilla Firefox is prior to 41.0 and is affected by multiple vulnerabilities : 

 - A flaw exists in ReadbackResultWriterD3D11::Run(). The issue is triggered as user-supplied input is not properly validated when handling return statuses. This may potentially allow a context-dependent attacker to corrupt memory and have an unspecified impact. (CVE-2015-7180) 
 - A flaw exists in InitTextures(). The issue is triggered as user-supplied input is not properly validated. This may potentially allow a context-dependent attacker to corrupt memory and have an unspecified impact. (CVE-2015-7117) 
 - An overflow condition exists in AnimationThread(). The issue is triggered as user-supplied input is not properly validated when handling sscanf arguments. This may allow a context-dependent attacker to cause a stack overflow, resulting in an unspecified impact. (CVE-2015-7176) 
 - An overflow condition exists in XULContentSinkImpl::AddText(). The issue is triggered as user-supplied input is not properly validated. This may allow a context-dependent attacker to cause a buffer overflow, resulting in an unspecified impact. (CVE-2015-7175) 
 - An overflow condition exists in the nsAttrAndChildArray::GrowBy() function in 'dom/base/nsAttrAndChildArray.cpp'. This may allow a context-dependent attacker to cause a buffer overflow and potentially execute arbitrary code. (CVE-2015-7174) 
 - An overflow condition exists in the nsUnicode*::GetMaxLength() functions that is triggered as user-supplied input is not properly validated. This may allow a context-dependent attacker to cause a buffer overflow and potentially execute arbitrary code. (CVE-2015-4522) 
 - A flaw exists in ConvertDialogOptions(). The issue is triggered as user-supplied input is not properly validated. This may potentially allow a context-dependent attacker to corrupt memory and have an unspecified impact. (CVE-2015-4521) 
 - A flaw exists in NetworkUtils.cpp. The issue is triggered as user-supplied input is not properly validated. This may potentially allow a context-dependent attacker to corrupt memory and have an unspecified impact. (CVE-2015-4517) 
 - An out-of-bounds read flaw exists in 'gfx/2d/DataSurfaceHelpers.cpp' that is triggered during the rendering of 2D canvases. This may allow a context-dependent attacker to potentially disclose sensitive memory contents. (CVE-2015-4512) 
 - A flaw exists that is triggered when identical cache keys may be generated for distinct preflight requests on a site. This may potentially allow a subsequent request to bypass intended cross-origin resource sharing (CORS) checks. (CVE-2015-4520) 
 - A flaw exists that is triggered when handling images that have been "dragged and dropped" after a redirect. The redirected URL of the image may be available to scripts, potentially allowing a context-dependent attacker to gain unauthorized access to it. (CVE-2015-4519) 
 - A use-after-free error exists in 'dom/html/HTMLMediaElement.cpp' that is triggered during the handling of HTML media elements. This may allow a context-dependent attacker to dereference already freed memory and potentially execute arbitrary code. (CVE-2015-4509) 
 - nestegg contains an overflow condition. The issue is triggered as user-supplied input is not properly validated when decoding WebM videos. This may allow a context-dependent attacker to cause a buffer overflow, potentially allowing the execution of arbitrary code. (CVE-2015-4511) 
 - A flaw related to scratch register scope handling exists. This may allow a context-dependent attacker to corrupt memory and potentially execute arbitrary code. (CVE-2015-4500) 
 - A flaw exists in the cloneLeftHandSide() function in 'frontend/ParseNode.cpp' that is triggered as user-supplied input is not properly validated. This may allow a context-dependent attacker to corrupt memory and potentially execute arbitrary code. (CVE-2015-4500) 
 - A flaw exists that is triggered as user-supplied input is not properly validated. This may allow a context-dependent attacker to corrupt memory and potentially execute arbitrary code. (CVE-2015-4500) 
 - A flaw exists in 'memory/mozjemalloc/jemalloc.c' that is triggered as user-supplied input is not properly validated. This may allow a context-dependent attacker to corrupt memory and potentially execute arbitrary code. (CVE-2015-4500) 
 - A flaw exists in the stagefright component that is triggered as user-supplied input is not properly validated. This may allow a context-dependent attacker to corrupt memory and potentially execute arbitrary code. (CVE-2015-4500) 
 - A flaw exists that is triggered when handling generator function groups, as they have an improper prototype. This may allow a context-dependent attacker to corrupt memory and potentially execute arbitrary code. (CVE-2015-4500) 
 - A flaw exists in the nsXBLService::GetBinding() function in 'dom/xbl/nsXBLService.cpp' that is triggered when loading bindings. This may allow a context-dependent attacker to corrupt memory and potentially execute arbitrary code. (CVE-2015-4500) 
 - A flaw exists in the IndexedDB component that is triggered as user-supplied input is not properly validated. This may allow a context-dependent attacker to corrupt memory and potentially execute arbitrary code. (CVE-2015-4500)
 - A use-after-free error exists in 'nsIPresShell' that is triggered when handling a restyling operation during the resizing of a canvas element. This may allow a context-dependent attacker to dereference already freed memory and potentially execute arbitrary code. (CVE-2015-4497)
 - A flaw exists that is triggered when handling add-on installation using 'data:' URLs. With a specially crafted web page, a context-dependent attacker can bypass the install permission prompt for add-ons and install add-ons from malicious sources. (CVE-2015-4498)

The remote Ubuntu 14.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-2743-1 advisory.

    Andrew Osmond, Olli Pettay, Andrew Sutherland, Christian Holler, David Major, Andrew McCreight, Cameron     McCormack, Bob Clary and Randell Jesup discovered multiple memory safety issues in Firefox. If a user were     tricked in to opening a specially crafted website, an attacker could potentially exploit these to cause a     denial of service via application crash, or execute arbitrary code with the privileges of the user     invoking Firefox. (CVE-2015-4500, CVE-2015-4501)

    Andr Bargull discovered that when a web page creates a scripted proxy for the window with a handler     defined a certain way, a reference to the inner window will be passed, rather than that of the outer     window. (CVE-2015-4502)

    Felix Grbert discovered an out-of-bounds read in the QCMS color management library in some     circumstances. If a user were tricked in to opening a specially crafted website, an attacker could     potentially exploit this to cause a denial of service via application crash, or obtain sensitive     information. (CVE-2015-4504)

    Khalil Zhani discovered a buffer overflow when parsing VP9 content in some circumstances. If a user were     tricked in to opening a specially crafted website, an attacker could potentially exploit this to cause a     denial of service via application crash, or execute arbitrary code with the privileges of the user     invoking Firefox. (CVE-2015-4506)

    Spandan Veggalam discovered a crash while using the debugger API in some circumstances. If a user were     tricked in to opening a specially crafted website whilst using the debugger, an attacker could potentially     exploit this to execute arbitrary code with the privileges of the user invoking Firefox. (CVE-2015-4507)

    Juho Nurminen discovered that the URL bar could display the wrong URL in reader mode in some     circumstances. If a user were tricked in to opening a specially crafted website, an attacker could     potentially exploit this to conduct URL spoofing attacks. (CVE-2015-4508)

    A use-after-free was discovered when manipulating HTML media content in some circumstances. If a user were     tricked in to opening a specially crafted website, an attacker could potentially exploit this to cause a     denial of service via application crash, or execute arbitrary code with the privileges of the user     invoking Firefox. (CVE-2015-4509)

    Looben Yang discovered a use-after-free when using a shared worker with IndexedDB in some circumstances.
    If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit     this to cause a denial of service via application crash, or execute arbitrary code with the privileges of     the user invoking Firefox. (CVE-2015-4510)

    Francisco Alonso discovered an out-of-bounds read during 2D canvas rendering in some circumstances. If a     user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to     obtain sensitive information. (CVE-2015-4512)

    Jeff Walden discovered that changes could be made to immutable properties in some circumstances. If a user     were tricked in to opening a specially crafted website, an attacker could potentially exploit this to     execute arbitrary script in a privileged scope. (CVE-2015-4516)

    Ronald Crane reported multiple vulnerabilities. If a user were tricked in to opening a specially crafted     website, an attacker could potentially exploit these to cause a denial of service via application crash,     or execute arbitrary code with the privileges of the user invoking Firefox. (CVE-2015-4517, CVE-2015-4521,     CVE-2015-4522, CVE-2015-7174, CVE-2015-7175, CVE-2015-7176, CVE-2015-7177, CVE-2015-7180)

    Mario Gomes discovered that dragging and dropping an image after a redirect exposes the redirected URL to     scripts. An attacker could potentially exploit this to obtain sensitive information. (CVE-2015-4519)

    Ehsan Akhgari discovered 2 issues with CORS preflight requests. An attacker could potentially exploit     these to bypass CORS restrictions. (CVE-2015-4520)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The Mozilla Project reports :

MFSA 2015-96 Miscellaneous memory safety hazards (rv:41.0 / rv:38.3)

MFSA 2015-97 Memory leak in mozTCPSocket to servers

MFSA 2015-98 Out of bounds read in QCMS library with ICC V4 profile attributes

MFSA 2015-99 Site attribute spoofing on Android by pasting URL with unknown scheme

MFSA 2015-100 Arbitrary file manipulation by local user through Mozilla updater

MFSA 2015-101 Buffer overflow in libvpx while parsing vp9 format video

MFSA 2015-102 Crash when using debugger with SavedStacks in JavaScript

MFSA 2015-103 URL spoofing in reader mode

MFSA 2015-104 Use-after-free with shared workers and IndexedDB

MFSA 2015-105 Buffer overflow while decoding WebM video

MFSA 2015-106 Use-after-free while manipulating HTML media content

MFSA 2015-107 Out-of-bounds read during 2D canvas display on Linux 16-bit color depth systems

MFSA 2015-108 Scripted proxies can access inner window

MFSA 2015-109 JavaScript immutable property enforcement can be bypassed

MFSA 2015-110 Dragging and dropping images exposes final URL after redirects

MFSA 2015-111 Errors in the handling of CORS preflight request headers

MFSA 2015-112 Vulnerabilities found through code inspection

MFSA 2015-113 Memory safety errors in libGLES in the ANGLE graphics library

MFSA 2015-114 Information disclosure via the High Resolution Time API

The version of Firefox installed on the remote Windows host is prior to 41. It is, therefore, affected by the following vulnerabilities :

  - Multiple unspecified memory corruption issues exist due     to improper validation of user-supplied input. A remote     attacker can exploit these issues to corrupt memory and     execute arbitrary code. (CVE-2015-4500)

  - Multiple unspecified memory corruption issues exist due     to improper validation of user-supplied input. A remote     attacker can exploit these issues to corrupt memory and     execute arbitrary code. (CVE-2015-4501)

  - A flaw exists that allows scripted proxies to access the     inner window. (CVE-2015-4502)

  - An out-of-bounds read issue exists in TCPSocket.js     related to the sending of strings over TCPSocket. A     remote attacker can exploit this disclose memory     contents. (CVE-2015-4503)

  - An out-of-bounds read error exists in the QCMS color     management library that is triggered when manipulating     an image with specific attributes in its ICC V4 profile.
    A remote attacker can exploit this to cause a denial of     service condition or to disclose sensitive information.
    (CVE-2015-4504)

  - A flaw exists in the Mozilla updater that allows a local     attacker to replace arbitrary files on the system,     resulting in the execution of arbitrary code.
    (CVE-2015-4505)

  - A buffer overflow condition exists in the libvpx     component when parsing vp9 format video. A remote     attacker can exploit this, via a specially crafted vp9     format video, to execute arbitrary code. (CVE-2015-4506)

  - A flaw exists in the debugger API that is triggered when     using the debugger with SavedStacks in JavaScript. An     attacker can exploit this to cause a denial of service     condition. (CVE-2015-4507)

  - A flaw exists in reader mode that allows an attacker to     spoof the URL displayed in the address bar.
    (CVE-2015-4508)

  - A user-after-free error exists when manipulating HTML     media elements on a page during script manipulation of     the URI table of these elements. An attacker can exploit     this to cause a denial of service condition.
    (CVE-2015-4509)

  - A use-after-free error exists when using a shared worker     with IndexedDB due to a race condition with the worker.
    A remote attacker can exploit this, via specially     crafted content, to cause a denial of service condition.
    (CVE-2015-4510)

  - A buffer overflow condition exists in the nestegg     library when decoding a WebM format video with     maliciously formatted headers. An attacker can exploit     this to cause a denial of service condition or the     execution of arbitrary code. (CVE-2015-4511)

  - An out-of-bounds read error exists during 2D canvas     rendering due to an issue in the cairo graphics library.
    An attacker can exploit this to read random memory,     resulting in the disclosure of sensitive information.
    (CVE-2015-4512)

  - A security bypass vulnerability exists due to a flaw in     Gecko's implementation of the ECMAScript 5 API. An     attacker can exploit this to run web content in a     privileged context, resulting in the execution of     arbitrary code. (CVE-2015-4516)

  - A memory corruption issue exists in NetworkUtils.cpp. An     attacker can potentially exploit this issue to cause a     denial of service condition or to execute arbitrary     code. (CVE-2015-4517)

  - An information disclosure vulnerability exists due to a     flaw that occurs when a previously loaded image on a     page is dropped into content after a redirect, resulting     in the redirected URL being available to scripts.
    (CVE-2015-4519)

  - Multiple security bypass vulnerabilities exist due to     errors in the handling of CORS preflight request     headers. (CVE-2015-4520)

  - A memory corruption issue exists in the     ConvertDialogOptions() function. An attacker can     potentially exploit this issue to cause a denial of     service condition or to execute arbitrary code.
    (CVE-2015-4521)

  - An overflow condition exists in the GetMaxLength()     function. An attacker can potentially exploit this to     cause a denial of service condition or to execute     arbitrary code. (CVE-2015-4522)

  - An overflow condition exists in the GrowBy() function.
    An attacker can potentially exploit this to cause a     denial of service condition or to execute arbitrary     code. (CVE-2015-7174)

  - An overflow condition exists in the AddText() function.
    An attacker can potentially exploit this to cause a     denial of service condition or to execute arbitrary     code. (CVE-2015-7175)

  - A stack overflow condition exists in the     AnimationThread() function due to a bad sscanf     argument. An attacker can potentially exploit this to     cause a denial of service condition or to execute     arbitrary code. (CVE-2015-7176)

  - A memory corruption issue exists in the InitTextures()     function. An attacker can potentially exploit this issue     to cause a denial of service condition or to execute     arbitrary code. (CVE-2015-7177)

  - An out-of-bounds memory error exists in the     linkAttributes() function when manipulating shaders. An     attacker can potentially exploit this issue to cause a     denial of service condition or to execute arbitrary     code. (CVE-2015-7178)

  - An overflow condition exists in the reserveVertexSpace()     function due to an insufficient allocation of memory for     a shader attribute array. An attacker can potentially     exploit this issue to cause a denial of service     condition or to execute arbitrary code. (CVE-2015-7179)

  - A memory corruption issue exists in     ReadbackResultWriterD3D11::Run due to mishandling of the     return status. An attacker can potentially exploit this     issue to cause a denial of service condition or to     execute arbitrary code. (CVE-2015-7180)

  - An unspecified flaw exists in the nsPerformance::Now()     function in dom/base/nsPerformance.cpp that allows an     attacker to use a side-channel attack to disclose     sensitive information. (CVE-2015-7327)

The version of Firefox installed on the remote Mac OS X host is prior to 41. It is, therefore, affected by the following vulnerabilities :

  - Multiple unspecified memory corruption issues exist due     to improper validation of user-supplied input. A remote     attacker can exploit these issues to corrupt memory and     execute arbitrary code. (CVE-2015-4500)

  - Multiple unspecified memory corruption issues exist due     to improper validation of user-supplied input. A remote     attacker can exploit these issues to corrupt memory and     execute arbitrary code. (CVE-2015-4501)

  - A flaw exists that allows scripted proxies to access the     inner window. (CVE-2015-4502)

  - An out-of-bounds read error exists in the QCMS color     management library that is triggered when manipulating     an image with specific attributes in its ICC V4 profile.
    A remote attacker can exploit this to cause a denial of     service condition or to disclose sensitive information.
    (CVE-2015-4504)

  - A buffer overflow condition exists in the libvpx     component when parsing vp9 format video. A remote     attacker can exploit this, via a specially crafted vp9     format video, to execute arbitrary code. (CVE-2015-4506)

  - A flaw exists in the debugger API that is triggered when     using the debugger with SavedStacks in JavaScript. An     attacker can exploit this to cause a denial of service     condition. (CVE-2015-4507)

  - A flaw exists in reader mode that allows an attacker to     spoof the URL displayed in the address bar.
    (CVE-2015-4508)

  - A user-after-free error exists when manipulating HTML     media elements on a page during script manipulation of     the URI table of these elements. An attacker can exploit     this to cause a denial of service condition.
    (CVE-2015-4509)

  - A use-after-free error exists when using a shared worker     with IndexedDB due to a race condition with the worker.
    A remote attacker can exploit this, via specially     crafted content, to cause a denial of service condition.
    (CVE-2015-4510)

  - A security bypass vulnerability exists due to a flaw in     Gecko's implementation of the ECMAScript 5 API. An     attacker can exploit this to run web content in a     privileged context, resulting in the execution of     arbitrary code. (CVE-2015-4516)

  - A memory corruption issue exists in NetworkUtils.cpp. An     attacker can potentially exploit this issue to cause a     denial of service condition or to execute arbitrary     code. (CVE-2015-4517)

  - An information disclosure vulnerability exists due to a     flaw that occurs when a previously loaded image on a     page is dropped into content after a redirect, resulting     in the redirected URL being available to scripts.
    (CVE-2015-4519)

  - Multiple security bypass vulnerabilities exist due to     errors in the handling of CORS preflight request     headers. (CVE-2015-4520)

  - A memory corruption issue exists in the     ConvertDialogOptions() function. An attacker can     potentially exploit this issue to cause a denial of     service condition or to execute arbitrary code.
    (CVE-2015-4521)

  - An overflow condition exists in the GetMaxLength()     function. An attacker can potentially exploit this to     cause a denial of service condition or to execute     arbitrary code. (CVE-2015-4522)

  - An overflow condition exists in the GrowBy() function.
    An attacker can potentially exploit this to cause a     denial of service condition or to execute arbitrary     code. (CVE-2015-7174)

  - An overflow condition exists in the AddText() function.
    An attacker can potentially exploit this to cause a     denial of service condition or to execute arbitrary     code. (CVE-2015-7175)

  - A stack overflow condition exists in the     AnimationThread() function due to a bad sscanf     argument. An attacker can potentially exploit this to     cause a denial of service condition or to execute     arbitrary code. (CVE-2015-7176)

  - A memory corruption issue exists in the InitTextures()     function. An attacker can potentially exploit this issue     to cause a denial of service condition or to execute     arbitrary code. (CVE-2015-7177)

  - A memory corruption issue exists in     ReadbackResultWriterD3D11::Run due to mishandling of the     return status. An attacker can potentially exploit this     issue to cause a denial of service condition or to     execute arbitrary code. (CVE-2015-7180)

ID	Name	Product	Family	Type	Severity
86238	openSUSE Security Update : MozillaFirefox (openSUSE-2015-619)	Nessus	SuSE Local Security Checks	Local	high
8948	Mozilla Firefox < 41.0 Multiple Vulnerabilities	Nessus Network Monitor	Web Clients		critical
86102	Ubuntu 14.04 LTS : Firefox vulnerabilities (USN-2743-1)	Nessus	Ubuntu Local Security Checks	Local	critical
86079	FreeBSD : mozilla -- multiple vulnerabilities (2d56c7f4-b354-428f-8f48-38150c607a05)	Nessus	FreeBSD Local Security Checks	Local	high
86071	Firefox < 41 Multiple Vulnerabilities	Nessus	Windows	Local	high
86069	Firefox < 41 Multiple Vulnerabilities (Mac OS X)	Nessus	MacOS X Local Security Checks	Local	high

Detections

Analytics

CVE-2015-4508

medium

Tenable Plugins

high

critical

critical

high

high

high