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Mageia 7 - MGASA-2020-0352 Moderate: Thunderbird Extension Risk

By holding a reference to the eval() function from an about:blank window, a malicious webpage could have gained access to the InstallTrigger object which would allow them to prompt the user to install an extension. Combined with user confusion, this could result in an unintended or malicious extension being installed (CVE-2020-15664). . MGASA-2020-0352 - Updated thunderbird packages fix security vulnerabilities Publication date: 28 Aug 2020 URL: https://advisories.mageia.org/MGASA-2020-0352.html Type: security Affected Mageia releases: 7 CVE: CVE-2020-15664, CVE-2020-15669 By holding a reference to the eval() function from an about:blank window, a malicious webpage could have gained access to the InstallTrigger object which would allow them to prompt the user to install an extension. Combined with user confusion, this could result in an unintended or malicious extension being installed (CVE-2020-15664). When aborting an operation, such as a fetch, an abort signal may be deleted while alerting the objects to be notified. This results in a use-after-free and we presume that with enough effort it could have been exploited to run arbitrary code (CVE-2020-15669). References: - https://bugs.mageia.org/show_bug.cgi?id=27204 - https://www.thunderbird.net/en-US/thunderbird/68.12.0/releasenotes/ - https://www.mozilla.org/en-US/security/advisories/mfsa2020-40/ - https://www.cve.org/CVERecord?id=CVE-2020-15664 - https://www.cve.org/CVERecord?id=CVE-2020-15669 SRPMS: - 7/core/thunderbird-68.12.0-1.mga7 - 7/core/thunderbird-l10n-68.12.0-1.mga7 . Recent Thunderbird updates tackle vulnerabilities that could allow harmful extensions to be installed.. Thunderbird Security, Mageia Updates, Extension Risks, Malicious Code, Security Patch. . LinuxSecurity.com Team

Aug 28, 2020 Mageia