Mozilla Firefox < 71.0

Medium Nessus Plugin ID 131772

Synopsis

A web browser installed on the remote macOS or Mac OS X host is affected by multiple vulnerabilities.

Description

The version of Firefox installed on the remote macOS or Mac OS X host is prior to 71.0. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2019-36 advisory.

- When encrypting with a block cipher, if a call to NSC_EncryptUpdate was made with data smaller than the block size, a small out of bounds write could occur. This could have caused heap corruption and a potentially exploitable crash. (CVE-2019-11745)

- Improper refcounting of soft token session objects could cause a use-after-free and crash (likely limited to a denial of service). (CVE-2019-11756)

- When using nested workers, a use-after-free could occur during worker destruction. This resulted in a potentially exploitable crash. (CVE-2019-17008)

- Under certain conditions, when checking the Resist Fingerprinting preference during device orientation checks, a race condition could have caused a use-after-free and a potentially exploitable crash. (CVE-2019-17010)

- Under certain conditions, when retrieving a document from a DocShell in the antitracking code, a race condition could cause a use-after-free condition and a potentially exploitable crash. (CVE-2019-17011)

- Mozilla developers Christoph Diehl, Nathan Froyd, Jason Kratzer, Christian Holler, Karl Tomlinson, Tyson Smith reported memory safety bugs present in Firefox 70 and Firefox ESR 68.2. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code.
(CVE-2019-17012)

- Mozilla developers and community members Philipp, Diego Calleja, Mikhail Gavrilov, Jason Kratzer, Christian Holler, Markus Stange, Tyson Smith reported memory safety bugs present in Firefox 70. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. (CVE-2019-17013)

- If an image had not loaded correctly (such as when it is not actually an image), it could be dragged and dropped cross-domain, resulting in a cross-origin information leak.
(CVE-2019-17014)

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

Solution

Upgrade to Mozilla Firefox version 71.0 or later.

See Also

https://www.mozilla.org/en-US/security/advisories/mfsa2019-36/

Plugin Details

Severity: Medium

ID: 131772

File Name: macos_firefox_71_0.nasl

Version: 1.4

Type: local

Agent: macosx

Published: 2019/12/06

Updated: 2020/01/16

Dependencies: 55417

Risk Information

Risk Factor: Medium

CVSS Score Source: CVE-2019-17013

CVSS v2.0

Base Score: 6.8

Temporal Score: 5

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

CVSS v3.0

Base Score: 8.8

Temporal Score: 7.7

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:mozilla:firefox

Required KB Items: MacOSX/Firefox/Installed

Exploit Ease: No known exploits are available

Patch Publication Date: 2019/12/03

Vulnerability Publication Date: 2019/12/03

Reference Information

CVE: CVE-2019-11745, CVE-2019-11756, CVE-2019-17005, CVE-2019-17008, CVE-2019-17010, CVE-2019-17011, CVE-2019-17012, CVE-2019-17013, CVE-2019-17014

MFSA: 2019-36