This update upgrades Firefox to version 60.2.0 ESR.

Security Fix(es) :

  - Mozilla: Memory safety bugs fixed in Firefox 62 and     Firefox ESR 60.2 (CVE-2018-12376)

  - Mozilla: Use-after-free in driver timers     (CVE-2018-12377)

  - Mozilla: Use-after-free in IndexedDB (CVE-2018-12378)

  - Mozilla: Proxy bypass using automount and autofs     (CVE-2017-16541)

  - Mozilla: Out-of-bounds write with malicious MAR file     (CVE-2018-12379)

An update for firefox is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Critical. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Mozilla Firefox is an open source web browser, designed for standards compliance, performance, and portability.

This update upgrades Firefox to version 60.2.0 ESR.

Security Fix(es) :

* Mozilla: Memory safety bugs fixed in Firefox 62 and Firefox ESR 60.2 (CVE-2018-12376)

* Mozilla: Use-after-free in driver timers (CVE-2018-12377)

* Mozilla: Use-after-free in IndexedDB (CVE-2018-12378)

* Mozilla: Proxy bypass using automount and autofs (CVE-2017-16541)

* Mozilla: Out-of-bounds write with malicious MAR file (CVE-2018-12379)

For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section.

Red Hat would like to thank the Mozilla project for reporting these issues. Upstream acknowledges Alex Gaynor, Boris Zbarsky, Christoph Diehl, Christian Holler, Jason Kratzer, Jed Davis, Tyson Smith, Bogdan Tara, Karl Tomlinson, Mats Palmgren, Nika Layzell, Ted Campbell, Nils, Zhanjia Song, and Holger Fuhrmannek as the original reporters.

USN-3761-1 fixed vulnerabilities in Firefox. The update caused several regressions affecting spellchecker dictionaries and search engines.
This update fixes the problems.

We apologize for the inconvenience.

Multiple security 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, or execute arbitrary code. (CVE-2018-12375, CVE-2018-12376, CVE-2018-12377, CVE-2018-12378)

It was discovered that if a user saved passwords before Firefox 58 and then later set a master password, an unencrypted copy of these passwords would still be accessible. A local user could exploit this to obtain sensitive information. (CVE-2018-12383).

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The version of Mozilla Thunderbird installed on the remote macOS host is prior to 60.2.1. It is, therefore, affected by multiple vulnerabilities :

  - A use-after-free vulnerability can occur when refresh driver     timers are refreshed in some circumstances during shutdown when     the timer is deleted while still in use. This results in a     potentially exploitable crash. (CVE-2018-12377)

  - A use-after-free vulnerability can occur when an IndexedDB index     is deleted while still in use by JavaScript code that is providing     payload values to be stored. This results in a potentially     exploitable crash. (CVE-2018-12378)

  - When the Mozilla Updater opens a MAR format file which contains a     very long item filename, an out-of-bounds write can be triggered,     leading to a potentially exploitable crash. This requires running     the Mozilla Updater manually on the local system with the     malicious MAR file in order to occur. (CVE-2018-12379)

  - Browser proxy settings can be bypassed by using the automount     feature with autofs to create a mount point on the local file     system. Content can be loaded from this mounted file system     directly using a file: URI, bypassing configured proxy settings.
    *Note: this issue only affects OS X in default configurations. On     Linux systems, autofs must be installed for the vulnerability to     occur and Windows is not affected.* (CVE-2017-16541)

  - Mozilla developers and community members Alex Gaynor, Boris     Zbarsky, Christoph Diehl, Christian Holler, Jason Kratzer, Jed     Davis, Tyson Smith, Bogdan Tara, Karl Tomlinson, Mats Palmgren,     Nika Layzell, Ted Campbell, and Andrei Cristian Petcu reported     memory safety bugs present in Firefox 61 and Firefox ESR 60.1.
    Some of these bugs showed evidence of memory corruption and we     presume that with enough effort that some of these could be     exploited to run arbitrary code. (CVE-2018-12376)

  - A potentially exploitable crash in TransportSecurityInfo used for     SSL can be triggered by data stored in the local cache in the user     profile directory. This issue is only exploitable in combination     with another vulnerability allowing an attacker to write data into     the local cache or from locally installed malware. This issue also     triggers a non-exploitable startup crash for users switching     between the Nightly and Release versions of Firefox if the same     profile is used. (CVE-2018-12385)

  - If a user saved passwords before Firefox 58 and then later set a     master password, an unencrypted copy of these passwords is still     accessible. This is because the older stored password file was not     deleted when the data was copied to a new format starting in     Firefox 58. The new master password is added only on the new file.
    This could allow the exposure of stored password data outside of     user expectations. (CVE-2018-12383)

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

The version of Mozilla Thunderbird installed on the remote Windows host is prior to 60.2.1. It is, therefore, affected by multiple vulnerabilities :

  - A use-after-free vulnerability can occur when refresh     driver timers are refreshed in some circumstances during     shutdown when the timer is deleted while still in use.
    This results in a potentially exploitable crash.
    (CVE-2018-12377)

  - A use-after-free vulnerability can occur when an     IndexedDB index is deleted while still in use by     JavaScript code that is providing payload values to be     stored. This results in a potentially exploitable crash.
    (CVE-2018-12378)

  - A same-origin policy violation allowing the theft of     cross-origin URL entries when using a <meta>     meta http-equiv=refresh on a page to cause a     redirection to another site using     performance.getEntries(). This is a same-     origin policy violation and could allow for data theft.
    (CVE-2018-18499)

  - When the Mozilla Updater opens a MAR format file which     contains a very long item filename, an out-of-bounds     write can be triggered, leading to a potentially     exploitable crash. This requires running the Mozilla     Updater manually on the local system with the malicious     MAR file in order to occur. (CVE-2018-12379)

  - Browser proxy settings can be bypassed by using the     automount feature with autofs to create a mount point on     the local file system. Content can be loaded from this     mounted file system directly using a file:
    URI, bypassing configured proxy settings. *Note:
    this issue only affects OS X in default configurations.
    On Linux systems, autofs must be installed for the     vulnerability to occur and Windows is not affected.*     (CVE-2017-16541)

  - A potentially exploitable crash in     TransportSecurityInfo used for SSL can be     triggered by data stored in the local cache in the user     profile directory. This issue is only exploitable in     combination with another vulnerability allowing an     attacker to write data into the local cache or from     locally installed malware. This issue also triggers a     non-exploitable startup crash for users switching     between the Nightly and Release versions of Firefox if     the same profile is used. (CVE-2018-12385)

  - If a user saved passwords before Firefox 58 and then     later set a master password, an unencrypted copy of     these passwords is still accessible. This is because the     older stored password file was not deleted when the data     was copied to a new format starting in Firefox 58. The     new master password is added only on the new file. This     could allow the exposure of stored password data outside     of user expectations. (CVE-2018-12383)

  - Mozilla developers and community members Alex Gaynor,     Boris Zbarsky, Christoph Diehl, Christian Holler, Jason     Kratzer, Jed Davis, Tyson Smith, Bogdan Tara, Karl     Tomlinson, Mats Palmgren, Nika Layzell, Ted Campbell,     and Andrei Cristian Petcu reported memory safety bugs     present in Firefox 61 and Firefox ESR 60.1. Some of     these bugs showed evidence of memory corruption and we     presume that with enough effort that some of these could     be exploited to run arbitrary code. (CVE-2018-12376)

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

The version of Mozilla Firefox ESR installed on the remote macOS or Mac OS X host is prior to 60.2. It is, therefore, affected by multiple vulnerabilities, some of which allow code execution and potentially exploitable crashes.

Multiple security 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, or execute arbitrary code. (CVE-2018-12375, CVE-2018-12376, CVE-2018-12377, CVE-2018-12378)

It was discovered that if a user saved passwords before Firefox 58 and then later set a master password, an unencrypted copy of these passwords would still be accessible. A local user could exploit this to obtain sensitive information. (CVE-2018-12383).

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

This update to Mozilla Firefox 60.2.0esr fixes the following issues :

Security issues fixed (MFSA 2018-21, boo#1107343) :

  - CVE-2018-12377: Use-after-free in refresh driver timers

  - CVE-2018-12378: Use-after-free in IndexedDB

  - CVE-2017-16541: Proxy bypass using automount and autofs     (boo#1066489)

  - CVE-2018-12376: Memory safety bugs fixed in Firefox 62     and Firefox ESR 60.2

Versions of Mozilla Firefox prior to 62.0 are unpatched for the following vulnerabilities as referenced in the mfsa2018-20 advisory:

 - Browser proxy settings can be bypassed by using the automount feature with autofs to create a mount point on the local file system. Content can be loaded from this mounted file system directly using "file: URI", bypassing configured proxy settings. (CVE-2017-16541)
 - Evidence of memory corruption exists that could be exploited to run arbitrary code. (CVE-2018-12375, CVE-2018-12376)
 - A use-after-free vulnerability can occur when refresh driver timers are refreshed in some circumstances during shutdown when the timer is deleted while still in use. This results in a potentially exploitable crash. (CVE-2018-12377)
 - A use-after-free vulnerability can occur when an IndexedDB index is deleted while still in use by JavaScript code that is providing payload values to be stored. This results in a potentially exploitable crash. (CVE-2018-12378)
 - When the Mozilla Updater opens a MAR format file which contains a very long item filename, an out-of-bounds write can be triggered, leading to a potentially exploitable crash. This requires running the Mozilla Updater manually on the local system with the malicious MAR file in order to occur. (CVE-2018-12379)
 - Manually dragging and dropping an Outlook email message into the browser will trigger a page navigation when the mail columns are incorrectly interpreted as a URL. (CVE-2018-12381)
 - The displayed addressbar URL can be spoofed on Firefox for Android using 'javascript: URI' in concert with JavaScript to insert text before the loaded domain name, scrolling the loaded domain out of view to the right. This can lead to user confusion. (CVE-2018-12382)
 - If a user saved passwords before Firefox 58 and then later set a master password, an unencrypted copy of these passwords is still accessible. This is because the older stored password file was not deleted when the data was copied to a new format starting in Firefox 58. The new master password is added only on the new file. This could allow the exposure of stored password data outside of user expectations. (CVE-2018-12383)

ID	Name	Product	Family	Published	Updated	Severity
117474	Scientific Linux Security Update : firefox on SL7.x x86_64 (20180912)	Nessus	Scientific Linux Local Security Checks	9/13/2018	5/29/2020	critical
117485	CentOS 7 : firefox (CESA-2018:2692)	Nessus	CentOS Local Security Checks	9/14/2018	2/18/2020	critical
117496	Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS : Firefox regressions (USN-3761-2)	Nessus	Ubuntu Local Security Checks	9/14/2018	10/20/2023	critical
117938	Mozilla Thunderbird < 60.2.1 Multiple Vulnerabilities (macOS)	Nessus	MacOS X Local Security Checks	10/5/2018	11/1/2019	critical
117939	Mozilla Thunderbird < 60.2.1 Multiple Vulnerabilities	Nessus	Windows	10/5/2018	4/5/2019	critical
117292	Mozilla Firefox ESR < 60.2 Multiple Vulnerabilities (macOS)	Nessus	MacOS X Local Security Checks	9/6/2018	4/5/2019	critical
117357	Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS : Firefox vulnerabilities (USN-3761-1)	Nessus	Ubuntu Local Security Checks	9/7/2018	10/21/2023	critical
117384	openSUSE Security Update : MozillaFirefox (openSUSE-2018-995)	Nessus	SuSE Local Security Checks	9/10/2018	1/19/2021	critical
700407	Mozilla Firefox < 62.0 Multiple Vulnerabilities	Nessus Network Monitor	Web Clients	2/6/2019	3/6/2019	critical

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