The navigator.sendBeacon implementation in Mozilla Firefox before 37.0, Firefox ESR 31.x before 31.6, and Thunderbird before 31.6 processes HTTP 30x status codes for redirects after a preflight request has occurred, which allows remote attackers to bypass intended CORS access-control checks and conduct cross-site request forgery (CSRF) attacks via a crafted web site, a similar issue to CVE-2014-8638.

Versions of Mozilla Firefox ESR prior to 31.6 are unpatched for the following vulnerabilities : 

 - A privilege escalation vulnerability exists which relates to anchor navigation. A remote attacker can exploit this to bypass same-origin policy protections, allowing a possible execution of arbitrary scripts in a privileged context. Note that this is a variant of CVE-2015-0818 that was fixed in Firefox 36.0.4. (CVE-2015-0801)
 - Access to certain privileged internal methods is retained when navigating from windows created to contain privileged UI content to unprivileged pages. An attacker can exploit this to execute arbitrary JavaScript with elevated privileges. (CVE-2015-0802)
 - Multiple type confusion issues exist that can lead to use-after-free errors, which a remote attacker can exploit to execute arbitrary code or cause a denial of service. (CVE-2015-0803, CVE-2015-0804)
 - Multiple memory corruption issues exist related to off-main-thread compositing when rendering 2D graphics, which a remote attacker can exploit to execute arbitrary code or cause a denial of service. (CVE-2015-0805, CVE-2015-0806)
 - A cross-site request forgery (XSRF) vulnerability exists in the sendBeacon() function due to cross-origin resource sharing (CORS) requests following 30x redirections. (CVE-2015-0807)
 - An issue exists in WebRTC related to memory management for simple-style arrays, which may be used by a remote attacker to cause a denial of service. (CVE-2015-0808)
 - An issue exists that allows a remote attacker to make the user's cursor invisible, possibly resulting in a successful clickjacking attack. Only OS X installations of Firefox are affected. (CVE-2015-0810)
 - An out-of-bounds read issue exists in the QCMS color management library that could lead to an information disclosure. (CVE-2015-0811)
 - An issue exists that can allow a man-in-the-middle attacker to bypass user-confirmation and install a Firefox lightweight theme by spoofing a Mozilla sub-domain. (CVE-2015-0812)
 - A use-after-free vulnerability affects the AppendElements() function when the Fluendo MP3 plugin for GStreamer is used. A remote attacker could exploit this to execute arbitrary code or cause a denial of service (heap memory corruption) via a specially crafted MP3 file. (CVE-2015-0813)
 - Multiple memory safety issues exist within the browser engine. A remote attacker can exploit these to corrupt memory and possibly execute arbitrary code. (CVE-2015-0814, CVE-2015-0815)
 - A privilege escalation vulnerability exists related to documents loaded through a 'resource:' URL. An attacker can exploit this to load pages and execute JavaScript with elevated privileges. (CVE-2015-0816)

The remote host is affected by the vulnerability described in GLSA-201512-10 (Mozilla Products: Multiple vulnerabilities)

    Multiple vulnerabilities have been discovered in Mozilla Firefox and       Mozilla Thunderbird. Please review the CVE identifiers referenced below       for details.
  Impact :

    A remote attacker could entice a user to view a specially crafted web       page or email, possibly resulting in execution of arbitrary code or a       Denial of Service condition.
  Workaround :

    There is no known workaround at this time.

Versions of Mozilla Thunderbird prior to 31.6 are prone to the following vulnerabilities : 

 - A privilege escalation vulnerability exists which relates to anchor navigation. A remote attacker can exploit this to bypass same-origin policy protections, allowing a possible execution of arbitrary scripts in a privileged context. (CVE-2015-0801)
 - A cross-site request forgery (XSRF) vulnerability exists in the 'sendBeacon()' function due to cross-origin resource sharing (CORS) requests following 30x redirections. (CVE-2015-0807)
 - A use-after-free vulnerability affects the 'AppendElements()' function when the Fluendo MP3 plugin for GStreamer is used. A remote attacker could exploit this to execute arbitrary code or cause a denial of service (heap memory corruption) via a specially crafted MP3 file. (CVE-2015-0813)
 - Multiple memory safety issues exist within the browser engine. A remote attacker can exploit these to corrupt memory and possibly execute arbitrary code. (CVE-2015-0814, CVE-2015-0815)
 - A privilege escalation vulnerability exists related to documents loaded through a 'resource:' URL. An attacker can exploit this to load pages and execute JavaScript with elevated privileges. (CVE-2015-0816)

Versions of Mozilla Firefox earlier than 37.0 are unpatched for the following vulnerabilities : 

 - A privilege escalation vulnerability exists which relates to anchor navigation. A remote attacker can exploit this to bypass same-origin policy protections, allowing a possible execution of arbitrary scripts in a privileged context. Note that this is a variant of CVE-2015-0818 that was fixed in Firefox 36.0.4. (CVE-2015-0801)
 - Access to certain privileged internal methods is retained when navigating from windows created to contain privileged UI content to unprivileged pages. An attacker can exploit this to execute arbitrary JavaScript with elevated privileges. (CVE-2015-0802)
 - Multiple type confusion issues exist that can lead to use-after-free errors, which a remote attacker can exploit to execute arbitrary code or cause a denial of service. (CVE-2015-0803, CVE-2015-0804)
 - Multiple memory corruption issues exist related to off-main-thread compositing when rendering 2D graphics, which a remote attacker can exploit to execute arbitrary code or cause a denial of service. (CVE-2015-0805, CVE-2015-0806)
 - A cross-site request forgery (XSRF) vulnerability exists in the sendBeacon() function due to cross-origin resource sharing (CORS) requests following 30x redirections. (CVE-2015-0807)
 - An issue exists in WebRTC related to memory management for simple-style arrays, which may be used by a remote attacker to cause a denial of service. (CVE-2015-0808)
 - An issue exists that allows a remote attacker to make the user's cursor invisible, possibly resulting in a successful clickjacking attack. Only OS X installations of Firefox are affected. (CVE-2015-0810)
 - An out-of-bounds read issue exists in the QCMS color management library that could lead to an information disclosure. (CVE-2015-0811)
 - An issue exists that can allow a man-in-the-middle attacker to bypass user-confirmation and install a Firefox lightweight theme by spoofing a Mozilla sub-domain. (CVE-2015-0812)
 - A use-after-free vulnerability affects the AppendElements() function when the Fluendo MP3 plugin for GStreamer is used. A remote attacker could exploit this to execute arbitrary code or cause a denial of service (heap memory corruption) via a specially crafted MP3 file. (CVE-2015-0813)
 - Multiple memory safety issues exist within the browser engine. A remote attacker can exploit these to corrupt memory and possibly execute arbitrary code. (CVE-2015-0814, CVE-2015-0815)
 - A privilege escalation vulnerability exists related to documents loaded through a 'resource:' URL. An attacker can exploit this to load pages and execute JavaScript with elevated privileges. (CVE-2015-0816)

Mozilla Firefox was updated to 31.6.0 ESR to fix five security issues.

The following vulnerabilities have been fixed :

  - Miscellaneous memory safety hazards. (MFSA 2015-30 /     CVE-2015-0814 / CVE-2015-0815)

  - Use-after-free when using the Fluendo MP3 GStreamer     plugin. (MFSA 2015-31 / CVE-2015-0813)

  - resource:// documents can load privileged pages. (MFSA     2015-33 / CVE-2015-0816)

  - CORS requests should not follow 30x redirections after     preflight. (MFSA 2015-37 / CVE-2015-0807)

  - Same-origin bypass through anchor navigation (MFSA     2015-40 / CVE-2015-0801)

Mozilla Firefox and Thunderbird were updated to fix several important vulnerabilities.

Mozilla Firefox was updated to 37.0.1. Mozilla Thunderbird was updated to 31.6.0. mozilla-nspr was updated to 4.10.8 as a dependency.

The following vulnerabilities were fixed in Mozilla Firefox :

  - Miscellaneous memory safety hazards (MFSA     2015-30/CVE-2015-0814/CVE-2015-0815 boo#925392)

  - Use-after-free when using the Fluendo MP3 GStreamer     plugin (MFSA 2015-31/CVE-2015-0813 bmo#1106596     boo#925393)

  - Add-on lightweight theme installation approval bypassed     through MITM attack (MFSA 2015-32/CVE-2015-0812     bmo#1128126 boo#925394)

  - resource:// documents can load privileged pages (MFSA     2015-33/CVE-2015-0816 bmo#1144991 boo#925395)

  - Out of bounds read in QCMS library     (MFSA-2015-34/CVE-2015-0811 bmo#1132468 boo#925396)

  - Incorrect memory management for simple-type arrays in     WebRTC (MFSA-2015-36/CVE-2015-0808 bmo#1109552     boo#925397)

  - CORS requests should not follow 30x redirections after     preflight (MFSA-2015-37/CVE-2015-0807 bmo#1111834     boo#925398)

  - Memory corruption crashes in Off Main Thread Compositing     (MFSA-2015-38/CVE-2015-0805/CVE-2015-0806 bmo#1135511     bmo#1099437 boo#925399)

  - Use-after-free due to type confusion flaws     (MFSA-2015-39/CVE-2015-0803/CVE-2015-0804 (mo#1134560     boo#925400)

  - Same-origin bypass through anchor navigation     (MFSA-2015-40/CVE-2015-0801 bmo#1146339 boo#925401)

  - Windows can retain access to privileged content on     navigation to unprivileged pages     (MFSA-2015-42/CVE-2015-0802 bmo#1124898 boo#925402)

The following vulnerability was fixed in functionality that was not released as an update to openSUSE :

  - Certificate verification could be bypassed through the     HTTP/2 Alt-Svc header (MFSA 2015-44/CVE-2015-0799     bmo#1148328 bnc#926166)

The functionality added in 37.0 and thus removed in 37.0.1 was :

  - Opportunistically encrypt HTTP traffic where the server     supports HTTP/2 AltSvc

The following functionality was added or updated in Mozilla Firefox :

  - Heartbeat user rating system

  - Yandex set as default search provider for the Turkish     locale

  - Bing search now uses HTTPS for secure searching

  - Improved protection against site impersonation via     OneCRL centralized certificate revocation

  - some more behaviour changes for TLS

The following vulnerabilities were fixed in Mozilla Thunderbird :

  - Miscellaneous memory safety hazards (MFSA     2015-30/CVE-2015-0814/CVE-2015-0815 boo#925392)

  - Use-after-free when using the Fluendo MP3 GStreamer     plugin (MFSA 2015-31/CVE-2015-0813 bmo#1106596     boo#925393)

  - resource:// documents can load privileged pages (MFSA     2015-33/CVE-2015-0816 bmo#1144991 boo#925395)

  - CORS requests should not follow 30x redirections after     preflight (MFSA-2015-37/CVE-2015-0807 bmo#1111834     boo#925398)

  - Same-origin bypass through anchor navigation     (MFSA-2015-40/CVE-2015-0801 bmo#1146339 boo#925401)

mozilla-nspr was updated to 4.10.8 as a dependency and received the following changes :

  - bmo#573192: remove the stack-based PRFileDesc cache.

  - bmo#756047: check for _POSIX_THREAD_PRIORITY_SCHEDULING     > 0 instead of only checking if the identifier is     defined.

  - bmo#1089908: Fix variable shadowing in _PR_MD_LOCKFILE.
    Use PR_ARRAY_SIZE to get the array size of
    _PR_RUNQ(t->cpu).

  - bmo#1106600: Replace PR_ASSERT(!'foo') with     PR_NOT_REACHED('foo') to fix clang -Wstring-conversion     warnings.

The remote Ubuntu 14.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-2552-1 advisory.

    Olli Pettay and Boris Zbarsky discovered an issue during anchor navigations in some circumstances. If a     user were tricked in to opening a specially crafted message with scripting enabled, an attacker could     potentially exploit this to bypass same-origin policy restrictions. (CVE-2015-0801)

    Christoph Kerschbaumer discovered that CORS requests from navigator.sendBeacon() followed 30x redirections     after preflight. If a user were tricked in to opening a specially crafted message with scripting enabled,     an attacker could potentially exploit this to conduct cross-site request forgery (XSRF) attacks.
    (CVE-2015-0807)

    Aki Helin discovered a use-after-free when playing MP3 audio files using the Fluendo MP3 GStreamer plugin     in certain circumstances. If a user were tricked in to opening a specially crafted message, 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 Thunderbird. (CVE-2015-0813)

    Christian Holler, Steve Fink, and Byron Campen discovered multiple memory safety issues in Thunderbird. If     a user were tricked in to opening a specially crafted message with scripting enabled, 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 Thunderbird. (CVE-2015-0815)

    Mariusz Mlynski discovered that documents loaded via resource: URLs (such as PDF.js) could load privileged     chrome pages. If a user were tricked in to opening a specially crafted message with scripting enabled, an     attacker could potentially exploit this in combination with another flaw, in order to execute arbitrary     script in a privileged context. (CVE-2015-0816)

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.

Multiple security issues have been found in Icedove, Debian's version of the Mozilla Thunderbird mail client: Multiple memory safety errors, use-after-frees and other implementation errors may lead to the execution of arbitrary code, the bypass of security restrictions or denial of service.

The remote Ubuntu 14.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-2550-1 advisory.

    Olli Pettay and Boris Zbarsky discovered an issue during anchor navigations in some circumstances. If a     user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to     bypass same-origin policy restrictions. (CVE-2015-0801)

    Bobby Holley discovered that windows created to hold privileged UI content retained access to privileged     internal methods if navigated to unprivileged content. An attacker could potentially exploit this in     combination with another flaw, in order to execute arbitrary script in a privileged context.
    (CVE-2015-0802)

    Several type confusion issues were discovered 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-2015-0803,     CVE-2015-0804)

    Abhishek Arya discovered memory corruption issues during 2D graphics rendering. 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-2015-0805, CVE-2015-0806)

    Christoph Kerschbaumer discovered that CORS requests from navigator.sendBeacon() followed 30x redirections     after preflight. If a user were tricked in to opening a specially crafted website, an attacker could     potentially exploit this to conduct cross-site request forgery (XSRF) attacks. (CVE-2015-0807)

    Mitchell Harper discovered an issue with memory management of simple-type arrays in WebRTC. An attacker     could potentially exploit this to cause undefined behaviour. (CVE-2015-0808)

    Felix Grbert discovered an out-of-bounds read in the QCMS colour management library. If a user were     tricked in to opening a specially crafted website, an attacker could potentially exploit this to obtain     sensitive information. (CVE-2015-0811)

    Armin Razmdjou discovered that lightweight themes could be installed in Firefox without a user approval     message, from Mozilla subdomains over HTTP without SSL. A remote attacker could potentially exploit this     by conducting a Machine-In-The-Middle (MITM) attack to install themes without user approval.
    (CVE-2015-0812)

    Aki Helin discovered a use-after-free when playing MP3 audio files using the Fluendo MP3 GStreamer plugin     in certain 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-2015-0813)

    Christian Holler, Andrew McCreight, Gary Kwong, Karl Tomlinson, Randell Jesup, Shu-yu Guo, Steve Fink,     Tooru Fujisawa, and Byron Campen 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-2015-0814, CVE-2015-0815)

    Mariusz Mlynski discovered that documents loaded via resource: URLs (such as PDF.js) could load privileged     chrome pages. If a user were tricked in to opening a specially crafted website, an attacker could     potentially exploit this in combination with another flaw, in order to execute arbitrary script in a     privileged context. (CVE-2015-0816)

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.

Several flaws were found in the processing of malformed web content. A web page containing malicious content could cause Thunderbird to crash or, potentially, execute arbitrary code with the privileges of the user running Thunderbird. (CVE-2015-0813, CVE-2015-0815, CVE-2015-0801)

A flaw was found in the way documents were loaded via resource URLs.
An attacker could use this flaw to bypass certain restrictions and under certain conditions even execute arbitrary code with the privileges of the user running Thunderbird. (CVE-2015-0816)

A flaw was found in the Beacon interface implementation in Thunderbird. A web page containing malicious content could allow a remote attacker to conduct a Cross-Site Request Forgery (CSRF) attack.
(CVE-2015-0807)

Note: All of the above issues cannot be exploited by a specially crafted HTML mail message as JavaScript is disabled by default for mail messages. They could be exploited another way in Thunderbird, for example, when viewing the full remote content of an RSS feed.

After installing the update, Thunderbird must be restarted for the changes to take effect.

Several flaws were found in the processing of malformed web content. A web page containing malicious content could cause Firefox to crash or, potentially, execute arbitrary code with the privileges of the user running Firefox. (CVE-2015-0813, CVE-2015-0815, CVE-2015-0801)

A flaw was found in the way documents were loaded via resource URLs in, for example, Mozilla's PDF.js PDF file viewer. An attacker could use this flaw to bypass certain restrictions and under certain conditions even execute arbitrary code with the privileges of the user running Firefox. (CVE-2015-0816)

A flaw was found in the Beacon interface implementation in Firefox. A web page containing malicious content could allow a remote attacker to conduct a Cross-Site Request Forgery (CSRF) attack. (CVE-2015-0807)

After installing the update, Firefox must be restarted for the changes to take effect.

An updated thunderbird package that fixes multiple security issues is now available for Red Hat Enterprise Linux 5, 6, and 7.

Red Hat Product Security has rated this update as having Important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

Mozilla Thunderbird is a standalone mail and newsgroup client.

Several flaws were found in the processing of malformed web content. A web page containing malicious content could cause Thunderbird to crash or, potentially, execute arbitrary code with the privileges of the user running Thunderbird. (CVE-2015-0813, CVE-2015-0815, CVE-2015-0801)

A flaw was found in the way documents were loaded via resource URLs.
An attacker could use this flaw to bypass certain restrictions and under certain conditions even execute arbitrary code with the privileges of the user running Thunderbird. (CVE-2015-0816)

A flaw was found in the Beacon interface implementation in Thunderbird. A web page containing malicious content could allow a remote attacker to conduct a Cross-Site Request Forgery (CSRF) attack.
(CVE-2015-0807)

Note: All of the above issues cannot be exploited by a specially crafted HTML mail message as JavaScript is disabled by default for mail messages. They could be exploited another way in Thunderbird, for example, when viewing the full remote content of an RSS feed.

Red Hat would like to thank the Mozilla project for reporting these issues. Upstream acknowledges Christian Holler, Byron Campen, Steve Fink, Mariusz Mlynski, Christoph Kerschbaumer, Muneaki Nishimura, Olli Pettay, Boris Zbarsky, and Aki Helin as the original reporters of these issues.

For technical details regarding these flaws, refer to the Mozilla security advisories for Thunderbird 31.6.0. You can find a link to the Mozilla advisories in the References section of this erratum.

All Thunderbird users should upgrade to this updated package, which contains Thunderbird version 31.6.0, which corrects these issues.
After installing the update, Thunderbird must be restarted for the changes to take effect.

The remote Oracle Linux 5 / 6 / 7 host has a package installed that is affected by multiple vulnerabilities as referenced in the ELSA-2015-0771 advisory.

    [31.6.0-1.0.1]
    - Replaced thunderbird-redhat-default-prefs.js with thunderbird-oracle-default-prefs.js

    [31.6.0-1]
    - Update to 31.6.0

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

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

Multiple security issues have been found in Iceweasel, Debian's version of the Mozilla Firefox web browser: Multiple memory safety errors, use-after-frees and other implementation errors may lead to the execution of arbitrary code, the bypass of security restrictions, denial of service or cross-site request forgery.

The version of Thunderbird installed on the remote Windows host is prior to 31.6. It is, therefore, affected by the following vulnerabilities :

  - A privilege escalation vulnerability exists which     relates to anchor navigation. A remote attacker can     exploit this to bypass same-origin policy protections,     allowing a possible execution of arbitrary scripts in a     privileged context. (CVE-2015-0801)

  - Access to certain privileged internal methods is     retained when navigating from windows created to contain     privileged UI content to unprivileged pages. An attacker     can exploit this to execute arbitrary JavaScript with     elevated privileges. (CVE-2015-0802)

  - A cross-site request forgery (XSRF) vulnerability exists     in the sendBeacon() function due to cross-origin     resource sharing (CORS) requests following 30x     redirections. (CVE-2015-0807)

  - Multiple memory safety issues exist within the browser     engine. A remote attacker can exploit these to corrupt     memory and possibly execute arbitrary code.
    (CVE-2015-0815)

  - A privilege escalation vulnerability exists related to     documents loaded through a 'resource:' URL. An attacker     can exploit this to load pages and execute JavaScript     with elevated privileges. (CVE-2015-0816)

The version of Firefox installed on the remote Windows host is prior to 37.0. It is, therefore, affected by the following vulnerabilities :

  - A privilege escalation vulnerability exists which     relates to anchor navigation. A remote attacker can     exploit this to bypass same-origin policy protections,     allowing a possible execution of arbitrary scripts in a     privileged context. Note that this is a variant of     CVE-2015-0818 that was fixed in Firefox 36.0.4.
    (CVE-2015-0801)

  - Access to certain privileged internal methods is     retained when navigating from windows created to contain     privileged UI content to unprivileged pages. An attacker     can exploit this to execute arbitrary JavaScript with     elevated privileges. (CVE-2015-0802)

  - Multiple type confusion issues exist that can lead to     use-after-free errors, which a remote attacker can     exploit to execute arbitrary code or cause a denial of     service. (CVE-2015-0803, CVE-2015-0804)

  - Multiple memory corruption issues exist related to Off     Main Thread Compositing when rendering 2D graphics,     which a remote attacker can exploit to execute arbitrary     code or cause a denial of service. (CVE-2015-0805,     CVE-2015-0806)

  - A cross-site request forgery (XSRF) vulnerability exists     in the sendBeacon() function due to cross-origin     resource sharing (CORS) requests following 30x     redirections. (CVE-2015-0807)

  - An issue exists in WebRTC related to memory management     for simple-style arrays, which may be used by a remote     attacker to cause a denial of service. (CVE-2015-0808)

  - An out-of-bounds read issue exists in the QCMS color     management library that could lead to an information     disclosure. (CVE-2015-0811)

  - An issue exists that can allow a man-in-the-middle     attacker to bypass user-confirmation and install a     Firefox lightweight theme by spoofing a Mozilla     sub-domain. (CVE-2015-0812)   
  - Multiple memory safety issues exist within the browser     engine. A remote attacker can exploit these to corrupt     memory and possibly execute arbitrary code.
    (CVE-2015-0814, CVE-2015-0815)

  - A privilege escalation vulnerability exists related to     documents loaded through a 'resource:' URL. An attacker     can exploit this to load pages and execute JavaScript     with elevated privileges. (CVE-2015-0816)

The version of Firefox ESR 31.x installed on the remote Windows host is prior to 31.6. It is, therefore, affected by the following vulnerabilities :

  - A privilege escalation vulnerability exists which     relates to anchor navigation. A remote attacker can     exploit this to bypass same-origin policy protections,     allowing a possible execution of arbitrary scripts in a     privileged context. Note that this is a variant of     CVE-2015-0818 that was fixed in Firefox ESR 31.5.3.
    (CVE-2015-0801)

  - Access to certain privileged internal methods is     retained when navigating from windows created to contain     privileged UI content to unprivileged pages. An attacker     can exploit this to execute arbitrary JavaScript with     elevated privileges. (CVE-2015-0802)

  - A cross-site request forgery (XSRF) vulnerability exists     in the sendBeacon() function due to cross-origin     resource sharing (CORS) requests following 30x     redirections. (CVE-2015-0807)

  - Multiple memory safety issues exist within the browser     engine. A remote attacker can exploit these to corrupt     memory and possibly execute arbitrary code.
    (CVE-2015-0815)

  - A privilege escalation vulnerability exists related to     documents loaded through a 'resource:' URL. An attacker     can exploit this to load pages and execute JavaScript     with elevated privileges. (CVE-2015-0816)

The version of Thunderbird installed on the remote Mac OS X host is prior to 31.6. It is, therefore, affected by the following vulnerabilities :

  - A privilege escalation vulnerability exists which     relates to anchor navigation. A remote attacker can     exploit this to bypass same-origin policy protections,     allowing a possible execution of arbitrary scripts in a     privileged context. (CVE-2015-0801)

  - Access to certain privileged internal methods is     retained when navigating from windows created to contain     privileged UI content to unprivileged pages. An attacker     can exploit this to execute arbitrary JavaScript with     elevated privileges. (CVE-2015-0802)

  - A cross-site request forgery (XSRF) vulnerability exists     in the sendBeacon() function due to cross-origin     resource sharing (CORS) requests following 30x     redirections. (CVE-2015-0807)

  - Multiple memory safety issues exist within the browser     engine. A remote attacker can exploit these to corrupt     memory and possibly execute arbitrary code.
    (CVE-2015-0815)

  - A privilege escalation vulnerability exists related to     documents loaded through a 'resource:' URL. An attacker     can exploit this to load pages and execute JavaScript     with elevated privileges. (CVE-2015-0816)

The version of Firefox installed on the remote Mac OS X host is prior to 37.0. It is, therefore, affected by the following vulnerabilities :

  - A privilege escalation vulnerability exists which     relates to anchor navigation. A remote attacker can     exploit this to bypass same-origin policy protections,     allowing a possible execution of arbitrary scripts in a     privileged context. Note that this is a variant of     CVE-2015-0818 that was fixed in Firefox 36.0.4.
    (CVE-2015-0801)

  - Access to certain privileged internal methods is     retained when navigating from windows created to contain     privileged UI content to unprivileged pages. An attacker     can exploit this to execute arbitrary JavaScript with     elevated privileges. (CVE-2015-0802)

  - Multiple type confusion issues exist that can lead to     use-after-free errors, which a remote attacker can     exploit to execute arbitrary code or cause a denial of     service. (CVE-2015-0803, CVE-2015-0804)

  - Multiple memory corruption issues exist related to Off     Main Thread Compositing when rendering 2D graphics,     which a remote attacker can exploit to execute arbitrary     code or cause a denial of service. (CVE-2015-0805,     CVE-2015-0806)

  - A cross-site request forgery (XSRF) vulnerability exists     in the sendBeacon() function due to cross-origin     resource sharing (CORS) requests following 30x     redirections. (CVE-2015-0807)

  - An issue exists in WebRTC related to memory management     for simple-style arrays, which may be used by a remote     attacker to cause a denial of service. (CVE-2015-0808)

  - An issue exists that allows a remote attacker to make     the user's cursor invisible, possibly resulting in a     successful clickjacking attack. (CVE-2015-0810)

  - An out-of-bounds read issue exists in the QCMS color     management library that could lead to an information     disclosure. (CVE-2015-0811)

  - An issue exists that can allow a man-in-the-middle     attacker to bypass user-confirmation and install a     Firefox lightweight theme by spoofing a Mozilla     sub-domain. (CVE-2015-0812)

  - Multiple memory safety issues exist within the browser     engine. A remote attacker can exploit these to corrupt     memory and possibly execute arbitrary code.
    (CVE-2015-0814, CVE-2015-0815)

  - A privilege escalation vulnerability exists related to     documents loaded through a 'resource:' URL. An attacker     can exploit this to load pages and execute JavaScript     with elevated privileges. (CVE-2015-0816)

The version of Firefox ESR 31.x installed on the remote Mac OS X host is prior to 31.6. It is, therefore, affected by the following vulnerabilities :

  - A privilege escalation vulnerability exists which     relates to anchor navigation. A remote attacker can     exploit this to bypass same-origin policy protections,     allowing a possible execution of arbitrary scripts in a     privileged context. Note that this is a variant of     CVE-2015-0818 that was fixed in Firefox ESR 31.5.3.
    (CVE-2015-0801)

  - Access to certain privileged internal methods is     retained when navigating from windows created to contain     privileged UI content to unprivileged pages. An attacker     can exploit this to execute arbitrary JavaScript with     elevated privileges. (CVE-2015-0802)

  - A cross-site request forgery (XSRF) vulnerability exists     in the sendBeacon() function due to cross-origin     resource sharing (CORS) requests following 30x     redirections. (CVE-2015-0807)

  - Multiple memory safety issues exist within the browser     engine. A remote attacker can exploit these to corrupt     memory and possibly execute arbitrary code.
    (CVE-2015-0815)

  - A privilege escalation vulnerability exists related to     documents loaded through a 'resource:' URL. An attacker     can exploit this to load pages and execute JavaScript     with elevated privileges. (CVE-2015-0816)

Updated firefox packages that fix multiple security issues are now available for Red Hat Enterprise Linux 5, 6, and 7.

Red Hat Product Security has rated this update as having Critical security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

Mozilla Firefox is an open source web browser. XULRunner provides the XUL Runtime environment for Mozilla Firefox.

Several flaws were found in the processing of malformed web content. A web page containing malicious content could cause Firefox to crash or, potentially, execute arbitrary code with the privileges of the user running Firefox. (CVE-2015-0813, CVE-2015-0815, CVE-2015-0801)

A flaw was found in the way documents were loaded via resource URLs in, for example, Mozilla's PDF.js PDF file viewer. An attacker could use this flaw to bypass certain restrictions and under certain conditions even execute arbitrary code with the privileges of the user running Firefox. (CVE-2015-0816)

A flaw was found in the Beacon interface implementation in Firefox. A web page containing malicious content could allow a remote attacker to conduct a Cross-Site Request Forgery (CSRF) attack. (CVE-2015-0807)

Red Hat would like to thank the Mozilla project for reporting these issues. Upstream acknowledges Christian Holler, Byron Campen, Steve Fink, Mariusz Mlynski, Christoph Kerschbaumer, Muneaki Nishimura, Olli Pettay, Boris Zbarsky, and Aki Helin as the original reporters of these issues.

All Firefox users should upgrade to these updated packages, which contain Firefox version 31.6.0 ESR, which corrects these issues. After installing the update, Firefox must be restarted for the changes to take effect.

The remote Oracle Linux 5 / 6 / 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2015-0766 advisory.

    [31.6.0-2.0.1.el5_11]
    - Add firefox-oracle-default-prefs.js and firefox-oracle-default-bookmarks.html       and remove the corresponding Red Hat files

    [31.6.0-1]
    - Update to 31.6.0 ESR Build 2

    [31.6.0-1]
    - Update to 31.6.0 ESR

Tenable has extracted the preceding description block directly from the Oracle Linux 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-2015-30 Miscellaneous memory safety hazards (rv:37.0 / rv:31.6)

MFSA-2015-31 Use-after-free when using the Fluendo MP3 GStreamer plugin

MFSA-2015-32 Add-on lightweight theme installation approval bypassed through MITM attack

MFSA-2015-33 resource:// documents can load privileged pages

MFSA-2015-34 Out of bounds read in QCMS library

MFSA-2015-35 Cursor clickjacking with flash and images

MFSA-2015-36 Incorrect memory management for simple-type arrays in WebRTC

MFSA-2015-37 CORS requests should not follow 30x redirections after preflight

MFSA-2015-38 Memory corruption crashes in Off Main Thread Compositing

MFSA-2015-39 Use-after-free due to type confusion flaws

MFSA-2015-40 Same-origin bypass through anchor navigation

MFSA-2015-41 PRNG weakness allows for DNS poisoning on Android

MFSA-2015-42 Windows can retain access to privileged content on navigation to unprivileged pages

ID	Name	Product	Family	Severity
701254	Mozilla Firefox ESR < 31.6 Multiple Vulnerabilities	Nessus Network Monitor	Web Clients	high
87710	GLSA-201512-10 : Mozilla Products: Multiple vulnerabilities (Bar Mitzvah) (Logjam)	Nessus	Gentoo Local Security Checks	critical
8745	Mozilla Thunderbird < 31.6 Multiple Vulnerabilities	Nessus Network Monitor	SMTP Clients	high
8742	Mozilla Firefox < 37.0 Multiple Vulnerabilities	Nessus Network Monitor	Web Clients	high
82739	SuSE 11.3 Security Update : Mozilla Firefox (SAT Patch Number 10571)	Nessus	SuSE Local Security Checks	high
82651	openSUSE Security Update : MozillaFirefox / MozillaThunderbird / mozilla-nspr (openSUSE-2015-290)	Nessus	SuSE Local Security Checks	high
82565	Ubuntu 14.04 LTS : Thunderbird vulnerabilities (USN-2552-1)	Nessus	Ubuntu Local Security Checks	high
82538	Debian DSA-3212-1 : icedove - security update	Nessus	Debian Local Security Checks	high
82524	Ubuntu 14.04 LTS : Firefox vulnerabilities (USN-2550-1)	Nessus	Ubuntu Local Security Checks	high
82522	Scientific Linux Security Update : thunderbird on SL5.x, SL6.x, SL7.x i386/x86_64 (20150401)	Nessus	Scientific Linux Local Security Checks	high
82520	Scientific Linux Security Update : firefox on SL5.x, SL6.x, SL7.x i386/x86_64 (20150401)	Nessus	Scientific Linux Local Security Checks	high
82519	RHEL 5 / 6 / 7 : thunderbird (RHSA-2015:0771)	Nessus	Red Hat Local Security Checks	high
82517	Oracle Linux 5 / 6 / 7 : thunderbird (ELSA-2015-0771)	Nessus	Oracle Linux Local Security Checks	high
82512	Debian DSA-3211-1 : iceweasel - security update	Nessus	Debian Local Security Checks	high
82510	CentOS 5 / 7 : thunderbird (CESA-2015:0771)	Nessus	CentOS Local Security Checks	high
82504	Mozilla Thunderbird < 31.6 Multiple Vulnerabilities	Nessus	Windows	high
82503	Firefox < 37.0 Multiple Vulnerabilities	Nessus	Windows	high
82502	Firefox ESR 31.x < 31.6 Multiple Vulnerabilities	Nessus	Windows	high
82501	Mozilla Thunderbird < 31.6 Multiple Vulnerabilities (Mac OS X)	Nessus	MacOS X Local Security Checks	high
82500	Firefox < 37.0 Multiple Vulnerabilities (Mac OS X)	Nessus	MacOS X Local Security Checks	high
82499	Firefox ESR 31.x < 31.6 Multiple Vulnerabilities (Mac OS X)	Nessus	MacOS X Local Security Checks	high
82495	RHEL 5 / 6 / 7 : firefox (RHSA-2015:0766)	Nessus	Red Hat Local Security Checks	high
82488	Oracle Linux 5 / 6 / 7 : firefox (ELSA-2015-0766)	Nessus	Oracle Linux Local Security Checks	high
82482	FreeBSD : mozilla -- multiple vulnerabilities (d0c97697-df2c-4b8b-bff2-cec24dc35af8)	Nessus	FreeBSD Local Security Checks	high
82477	CentOS 5 / 6 / 7 : firefox / xulrunner (CESA-2015:0766)	Nessus	CentOS Local Security Checks	high

Detections

Analytics

CVE-2015-0807

high

Tenable Plugins

high

critical

high

high

high

high

high

high

high

high

high

high

high

high

high

high

high

high

high

high

high

high

high

high

high