Vulnerabilities > CVE-2020-6815 - Out-of-bounds Write vulnerability in Mozilla Firefox
Attack vector
NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
HIGH Integrity impact
HIGH Availability impact
HIGH Summary
Mozilla developers reported memory safety and script safety bugs present in Firefox 73. Some of these bugs showed evidence of memory corruption or escalation of privilege and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 74.
Vulnerable Configurations
Common Weakness Enumeration (CWE)
Nessus
NASL family MacOS X Local Security Checks NASL id MACOS_FIREFOX_74_0.NASL description The version of Firefox installed on the remote macOS or Mac OS X host is prior to 74.0. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2020-08 advisory. Note that Nessus has not tested for this issue but has instead relied only on the application last seen 2020-05-06 modified 2020-03-11 plugin id 134404 published 2020-03-11 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/134404 title Mozilla Firefox < 74.0 Multiple Vulnerabilities NASL family Windows NASL id MOZILLA_FIREFOX_74_0.NASL description The version of Firefox installed on the remote Windows host is prior to 74.0. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2020-08 advisory. Note that Nessus has not tested for this issue but has instead relied only on the application last seen 2020-05-06 modified 2020-03-11 plugin id 134405 published 2020-03-11 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/134405 title Mozilla Firefox < 74.0 Multiple Vulnerabilities NASL family Ubuntu Local Security Checks NASL id UBUNTU_USN-4299-1.NASL description 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, spoof the URL or other browser chrome, obtain sensitive information, bypass Content Security Policy (CSP) protections, or execute arbitrary code. (CVE-2019-20503, CVE-2020-6805, CVE-2020-6806, CVE-2020-6807, CVE-2020-6808, CVE-2020-6810, CVE-2020-6812, CVE-2020-6813, CVE-2020-6814, CVE-2020-6815) It was discovered that Web Extensions with the all-url permission could access local files. If a user were tricked in to installing a specially crafted extension, an attacker could potentially exploit this to obtain sensitive information. (CVE-2020-6809) It was discovered that the Devtools last seen 2020-05-08 modified 2020-03-12 plugin id 134442 published 2020-03-12 reporter Ubuntu Security Notice (C) 2020 Canonical, Inc. / NASL script (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/134442 title Ubuntu 16.04 LTS / 18.04 LTS / 19.10 : firefox vulnerabilities (USN-4299-1)
References
- https://bugzilla.mozilla.org/buglist.cgi?bug_id=1181957%2C1557732%2C1557739%2C1611457%2C1612431
- https://bugzilla.mozilla.org/buglist.cgi?bug_id=1181957%2C1557732%2C1557739%2C1611457%2C1612431
- https://www.mozilla.org/security/advisories/mfsa2020-08/
- https://www.mozilla.org/security/advisories/mfsa2020-08/