The remote host is affected by the vulnerability described in GLSA-202003-10 (Mozilla Thunderbird: Multiple vulnerabilities)

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

    A remote attacker may be able to execute arbitrary code, cause a Denial       of Service condition, obtain sensitive information, or conduct Cross-Site       Request Forgery (CSRF).
  Workaround :

    There is no known workaround at this time.

The version of Firefox installed on the remote macOS or Mac OS X host is prior to 73.0. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2020-05 advisory.

  - Mozilla developers Jason Kratzer, Tyson Smith, and Christian Holler reported memory safety bugs present in     Firefox 72. 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-2020-6801)

  - A content process could have modified shared memory relating to crash reporting information, crash itself,     and cause an out-of-bound write. This could have caused memory corruption and a potentially exploitable     crash. (CVE-2020-6796)

  - By downloading a file with the .fileloc extension, a semi-privileged extension could launch an arbitrary     application on the user's computer. The attacker is restricted as they are unable to download non-     quarantined files or supply command line arguments to the application, limiting the impact. Note: this     issue only occurs on Mac OSX. Other operating systems are unaffected. (CVE-2020-6797)

  - If a <code><template></code> tag was used in a <code><select%gt;</code> tag, the parser could be     confused and allow JavaScript parsing and execution when it should not be allowed. A site that relied on     the browser behaving correctly could suffer a cross-site scripting vulnerability as a result.
    (CVE-2020-6798)

  - Command line arguments could have been injected during Firefox invocation as a shell handler for certain     unsupported file types. This required Firefox to be configured as the default handler for a given file     type and for a file downloaded to be opened in a third party application that insufficiently sanitized URL     data. In that situation, clicking a link in the third party application could have been used to retrieve     and execute files whose location was supplied through command line arguments.  Note: This issue only     affects Windows operating systems and when Firefox is configured as the default handler for non-default     filetypes. Other operating systems are unaffected. (CVE-2020-6799)

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 73.0. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2020-05 advisory.

  - Mozilla developers Jason Kratzer, Tyson Smith, and Christian Holler reported memory safety bugs present in     Firefox 72. 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-2020-6801)

  - A content process could have modified shared memory relating to crash reporting information, crash itself,     and cause an out-of-bound write. This could have caused memory corruption and a potentially exploitable     crash. (CVE-2020-6796)

  - By downloading a file with the .fileloc extension, a semi-privileged extension could launch an arbitrary     application on the user's computer. The attacker is restricted as they are unable to download non-     quarantined files or supply command line arguments to the application, limiting the impact. Note: this     issue only occurs on Mac OSX. Other operating systems are unaffected. (CVE-2020-6797)

  - If a <code><template></code> tag was used in a <code><select%gt;</code> tag, the parser could be     confused and allow JavaScript parsing and execution when it should not be allowed. A site that relied on     the browser behaving correctly could suffer a cross-site scripting vulnerability as a result.
    (CVE-2020-6798)

  - Command line arguments could have been injected during Firefox invocation as a shell handler for certain     unsupported file types. This required Firefox to be configured as the default handler for a given file     type and for a file downloaded to be opened in a third party application that insufficiently sanitized URL     data. In that situation, clicking a link in the third party application could have been used to retrieve     and execute files whose location was supplied through command line arguments.  Note: This issue only     affects Windows operating systems and when Firefox is configured as the default handler for non-default     filetypes. Other operating systems are unaffected. (CVE-2020-6799)

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 ESR installed on the remote macOS or Mac OS X host is prior to 68.5. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2020-06 advisory.

  - Mozilla developers and community members Raul Gurzau, Tyson Smith, Bob Clary, Liz Henry, and Christian     Holler reported memory safety bugs present in Firefox 72 and Firefox ESR 68.4. 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-2020-6800)

  - A content process could have modified shared memory relating to crash reporting information, crash itself,     and cause an out-of-bound write. This could have caused memory corruption and a potentially exploitable     crash. (CVE-2020-6796)

  - By downloading a file with the .fileloc extension, a semi-privileged extension could launch an arbitrary     application on the user's computer. The attacker is restricted as they are unable to download non-     quarantined files or supply command line arguments to the application, limiting the impact. Note: this     issue only occurs on Mac OSX. Other operating systems are unaffected. (CVE-2020-6797)

  - If a <code><template></code> tag was used in a <code><select%gt;</code> tag, the parser could be     confused and allow JavaScript parsing and execution when it should not be allowed. A site that relied on     the browser behaving correctly could suffer a cross-site scripting vulnerability as a result.
    (CVE-2020-6798)

  - Command line arguments could have been injected during Firefox invocation as a shell handler for certain     unsupported file types. This required Firefox to be configured as the default handler for a given file     type and for a file downloaded to be opened in a third party application that insufficiently sanitized URL     data. In that situation, clicking a link in the third party application could have been used to retrieve     and execute files whose location was supplied through command line arguments.  Note: This issue only     affects Windows operating systems and when Firefox is configured as the default handler for non-default     filetypes. Other operating systems are unaffected. (CVE-2020-6799)

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

The remote Ubuntu 16.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-4335-1 advisory.

    Multiple security issues were discovered in Thunderbird. If a user were tricked in to opening a specially     crafted website in a browsing context, an attacker could potentially exploit these to cause a denial of     service, obtain sensitive information, bypass security restrictions, bypass same-origin restrictions,     conduct cross-site scripting (XSS) attacks, or execute arbitrary code. (CVE-2019-11757, CVE-2019-11758,     CVE-2019-11759, CVE-2019-11760, CVE-2019-11761, CVE-2019-11762, CVE-2019-11763, CVE-2019-11764,     CVE-2019-17005, CVE-2019-17008, CVE-2019-17010, CVE-2019-17011, CVE-2019-17012, CVE-2019-17016,     CVE-2019-17017, CVE-2019-17022, CVE-2019-17024, CVE-2019-17026, CVE-2019-20503, CVE-2020-6798,     CVE-2020-6800, CVE-2020-6805, CVE-2020-6806, CVE-2020-6807, CVE-2020-6812, CVE-2020-6814, CVE-2020-6819,     CVE-2020-6820, CVE-2020-6821, CVE-2020-6825)

    It was discovered that NSS incorrectly handled certain memory operations. A remote attacker could     potentially exploit this to cause a denial of service, or execute arbitrary code. (CVE-2019-11745)

    It was discovered that a specially crafted S/MIME message with an inner encryption layer could be     displayed as having a valid signature in some circumstances, even if the signer had no access to the     encrypted message. An attacker could potentially exploit this to spoof the message author.
    (CVE-2019-11755)

    A heap overflow was discovered in the expat library in Thunderbird. If a user were tricked in to opening a     specially crafted message, an attacker could potentially exploit this to cause a denial of service, or     execute arbitrary code. (CVE-2019-15903)

    It was discovered that Message ID calculation was based on uninitialized data. An attacker could     potentially exploit this to obtain sensitive information. (CVE-2020-6792)

    Mutiple security issues were discovered in Thunderbird. If a user were tricked in to opening a specially     crafted message, an attacker could potentially exploit these to cause a denial of service, obtain     sensitive information, or execute arbitrary code. (CVE-2020-6793, CVE-2020-6795, CVE-2020-6822)

    It was discovered that if a user saved passwords before Thunderbird 60 and then later set a primary     password, an unencrypted copy of these passwords would still be accessible. A local user could exploit     this to obtain sensitive information. (CVE-2020-6794)

    It was discovered that the Devtools Copy as cURL feature did not fully escape website-controlled     data. If a user were tricked in to using the Copy as cURL feature to copy and paste a command with     specially crafted data in to a terminal, an attacker could potentially exploit this to execute arbitrary     commands via command injection. (CVE-2020-6811)

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 remote host is affected by the vulnerability described in GLSA-202003-02 (Mozilla Firefox: Multiple vulnerabilities)

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

    A remote attacker could entice a user to view a specially crafted web       page, possibly resulting in the execution of arbitrary code with the       privileges of the process or a Denial of Service condition. Furthermore,       a remote attacker may be able to perform Man-in-the-Middle attacks,       obtain sensitive information, spoof the address bar, conduct clickjacking       attacks, bypass security restrictions and protection mechanisms, or have       other unspecified impact.
  Workaround :

    There is no known workaround at this time.

ID	Name	Product	Family	Published	Updated	Severity
134587	GLSA-202003-10 : Mozilla Thunderbird: Multiple vulnerabilities	Nessus	Gentoo Local Security Checks	3/16/2020	9/28/2020	critical
133692	Mozilla Firefox < 73.0	Nessus	MacOS X Local Security Checks	2/14/2020	11/18/2025	high
133693	Mozilla Firefox < 73.0	Nessus	Windows	2/14/2020	11/18/2025	high
133849	Mozilla Firefox ESR < 68.5	Nessus	MacOS X Local Security Checks	2/21/2020	11/18/2025	high
147407	NewStart CGSL MAIN 4.06 : firefox Multiple Vulnerabilities (NS-SA-2021-0004)	Nessus	NewStart CGSL Local Security Checks	3/10/2021	4/25/2023	critical
135896	Ubuntu 16.04 LTS : Thunderbird vulnerabilities (USN-4335-1)	Nessus	Ubuntu Local Security Checks	4/22/2020	8/29/2024	critical
134469	GLSA-202003-02 : Mozilla Firefox: Multiple vulnerabilities	Nessus	Gentoo Local Security Checks	3/13/2020	12/7/2022	critical

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