Mozilla developers reported memory safety bugs present in Firefox 71. 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. This vulnerability affects Firefox < 72.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - Mozilla developers reported memory safety bugs present in Firefox 71. 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. This vulnerability affects Firefox < 72. (CVE-2019-17025)

Note that Nessus relies on the presence of the package as reported by the vendor.

The remote Ubuntu 16.04 LTS / 18.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-4234-1 advisory.

    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, obtain     sensitive information, bypass Content Security Policy (CSP) restrictions, conduct cross-site scripting     (XSS) attacks, or execute arbitrary code.

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 version of Firefox installed on the remote Windows host is prior to 72.0. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2020-01 advisory.

  - Mozilla developers Karl Tomlinson, Jason Kratzer, Tyson Smith, Jon Coppeard, and Christian Holler reported     memory safety bugs present in Firefox 71. 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-2019-17025)

  - During the initialization of a new content process, a pointer offset can be manipulated leading to memory     corruption and a potentially exploitable crash in the parent process.  Note: this issue only occurs on     Windows. Other operating systems are unaffected. (CVE-2019-17015)

  - When pasting a <code><style></code> tag from the clipboard into a rich text editor, the CSS     sanitizer incorrectly rewrites a @namespace rule. This could allow for injection into certain types of     websites resulting in data exfiltration. (CVE-2019-17016)

  - Due to a missing case handling object types, a type confusion vulnerability could occur, resulting in a     crash. We presume that with enough effort that it could be exploited to run arbitrary code.
    (CVE-2019-17017)

  - When in Private Browsing Mode on Windows 10, the Windows keyboard may retain word suggestions to improve     the accuracy of the keyboard. (CVE-2019-17018)

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

The version of Firefox installed on the remote macOS or Mac OS X host is prior to 72.0. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2020-01 advisory.

  - Mozilla developers Karl Tomlinson, Jason Kratzer, Tyson Smith, Jon Coppeard, and Christian Holler reported     memory safety bugs present in Firefox 71. 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-2019-17025)

  - During the initialization of a new content process, a pointer offset can be manipulated leading to memory     corruption and a potentially exploitable crash in the parent process.  Note: this issue only occurs on     Windows. Other operating systems are unaffected. (CVE-2019-17015)

  - When pasting a <code><style></code> tag from the clipboard into a rich text editor, the CSS     sanitizer incorrectly rewrites a @namespace rule. This could allow for injection into certain types of     websites resulting in data exfiltration. (CVE-2019-17016)

  - Due to a missing case handling object types, a type confusion vulnerability could occur, resulting in a     crash. We presume that with enough effort that it could be exploited to run arbitrary code.
    (CVE-2019-17017)

  - When in Private Browsing Mode on Windows 10, the Windows keyboard may retain word suggestions to improve     the accuracy of the keyboard. (CVE-2019-17018)

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

ID	Name	Product	Family	Severity
317053	Linux Distros Unpatched Vulnerability : CVE-2019-17025	Nessus	Misc.	high
132854	Ubuntu 16.04 LTS / 18.04 LTS : Firefox vulnerabilities (USN-4234-1)	Nessus	Ubuntu Local Security Checks	high
132709	Mozilla Firefox < 72.0	Nessus	Windows	high
132708	Mozilla Firefox < 72.0	Nessus	MacOS X Local Security Checks	high

Detections

Analytics

CVE-2019-17025

high

Tenable Plugins

high

high

high

high