Vulnerability Details

Mozilla Firefox Security Advisory (MFSA2020-08) - Linux

Published: 2021-11-08 15:21:25
CVE Author: NIST National Vulnerability Database

CVSS Base Vector:
AV:N/AC:L/Au:N/C:P/I:P/A:P

severity_vector=CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

severity_origin=NVD

severity_date=2020-04-22 18:15:00 +0000 (Wed, 22 Apr 2020)

Summary:
This host is missing a security update for Mozilla Firefox.

Detection Method:
Checks if a vulnerable Linux Distribution Package version is present on the target host.

Technical Details:
CVE-2020-6805: Use-after-free when removing data about origins When removing data about an origin whose tab was recently closed, a use-after-free could occur in the Quota manager, resulting in a potentially exploitable crash. CVE-2020-6806: BodyStream::OnInputStreamReady was missing protections against state confusion By carefully crafting promise resolutions, it was possible to cause an out-of-bounds read off the end of an array resized during script execution. This could have led to memory corruption and a potentially exploitable crash. CVE-2020-6807: Use-after-free in cubeb during stream destruction When a device was changed while a stream was about to be destroyed, the stream-reinit task may have been executed after the stream was destroyed, causing a use-after-free and a potentially exploitable crash. CVE-2020-6808: URL Spoofing via javascript: URL When a JavaScript URL (javascript:) is evaluated and the result is a string, this string is parsed to create an HTML document, which is then presented. Previously, this document's URL (as reported by the document.location property, for example) was the originating javascript: URL which could lead to spoofing attacks, it is now correctly the URL of the originating document. CVE-2020-6809: Web Extensions with the all-urls permission could access local files When a Web Extension had the all-urls permission and made a fetch request with a mode set to 'same-origin', it was possible for the Web Extension to read local files. CVE-2020-6810: Focusing a popup while in fullscreen could have obscured the fullscreen notification After a website had entered fullscreen mode, it could have used a previously opened popup to obscure the notification that indicates the browser is in fullscreen mode. Combined with spoofing the browser chrome, this could have led to confusing the user about the current origin of the page and credential theft or other attacks. CVE-2020-6811: Devtools' 'Copy as cURL' feature did not fully escape website-controlled data, potentially leading to command injection The 'Copy as cURL' feature of Devtools' network tab did not properly escape the HTTP method of a request, which can be controlled by the website. If a user used the 'Copy as Curl' feature and pasted the command into a terminal, it could have resulted in command injection and arbitrary command execution. CVE-2019-20503: Out of bounds reads in sctp_load_addresses_from_init The inputs to sctp_load_addresses_from_init are verified by sctp_arethere_unrecognized_parameters, however, the two functions handled parameter bounds differently, resulting in out of bounds reads when parameters are partially outside a chunk. CVE-2020-6812: The names of AirPods with personally identifiable information were exposed to websites with camera or microphone permission The first time AirPods are connected to an iPhone, they become named after the user's name by default ... [Please see the references for more information on the vulnerabilities]

Affected Versions:
Firefox version(s) below 74.

Recommendations:
The vendor has released an update. Please see the reference(s) for more information.

Solution Type:
Vendor Patch

Detection Type:
Executable Unreliable

NIST (National Institute of Standards and Technology) NVD (National Vulnerability Database)

https://nvd.nist.gov/vuln/detail/CVE-2019-20503
https://nvd.nist.gov/vuln/detail/CVE-2020-6805
https://nvd.nist.gov/vuln/detail/CVE-2020-6806
https://nvd.nist.gov/vuln/detail/CVE-2020-6807
https://nvd.nist.gov/vuln/detail/CVE-2020-6808
https://nvd.nist.gov/vuln/detail/CVE-2020-6809
https://nvd.nist.gov/vuln/detail/CVE-2020-6810
https://nvd.nist.gov/vuln/detail/CVE-2020-6811
https://nvd.nist.gov/vuln/detail/CVE-2020-6812
https://nvd.nist.gov/vuln/detail/CVE-2020-6813
https://nvd.nist.gov/vuln/detail/CVE-2020-6814
https://nvd.nist.gov/vuln/detail/CVE-2020-6815

References:


https://www.mozilla.org/en-US/security/advisories/mfsa2020-08/
https://bugzilla.mozilla.org/buglist.cgi?bug_id=1181957%2C1557732%2C1557739%2C1611457%2C1612431
https://bugzilla.mozilla.org/buglist.cgi?bug_id=1592078%2C1604847%2C1608256%2C1612636%2C1614339
https://bugzilla.mozilla.org/show_bug.cgi?id=1247968
https://bugzilla.mozilla.org/show_bug.cgi?id=1420296
https://bugzilla.mozilla.org/show_bug.cgi?id=1432856
https://bugzilla.mozilla.org/show_bug.cgi?id=1605814
https://bugzilla.mozilla.org/show_bug.cgi?id=1607742
https://bugzilla.mozilla.org/show_bug.cgi?id=1610880
https://bugzilla.mozilla.org/show_bug.cgi?id=1612308
https://bugzilla.mozilla.org/show_bug.cgi?id=1613765
https://bugzilla.mozilla.org/show_bug.cgi?id=1614971
https://bugzilla.mozilla.org/show_bug.cgi?id=1616661

Severity
High
CVSS Score
7.5
Published
2021-11-08
Modified
2021-11-15
Category
General

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