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Ubuntu Security Notice USN-6218-1
Ubuntu Security Notice 6218-1 - A use-after-free was discovered in Firefox when handling workers. An attacker could potentially exploit this to cause a denial of service, or execute arbitrary code.
==========================================================================Ubuntu Security Notice USN-6218-1July 12, 2023firefox vulnerability==========================================================================A security issue affects these releases of Ubuntu and its derivatives:- Ubuntu 20.04 LTSSummary:Firefox could be made to crash or run programs as your login.Software Description:- firefox: Mozilla Open Source web browserDetails:A use-after-free was discovered in Firefox when handling workers. Anattacker could potentially exploit this to cause a denial of service, orexecute arbitrary code.Update instructions:The problem can be corrected by updating your system to the followingpackage versions:Ubuntu 20.04 LTS: firefox 115.0.2+build1-0ubuntu0.20.04.1After a standard system update you need to restart Firefox to makeall the necessary changes.References: https://ubuntu.com/security/notices/USN-6218-1 CVE-2023-3600Package Information: https://launchpad.net/ubuntu/+source/firefox/115.0.2+build1-0ubuntu0.20.04.1Related news
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Ubuntu Security Notice 6405-1 - Multiple security issues were discovered in Thunderbird. If a user were tricked into 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, cross-site tracing, or execute arbitrary code. Andrew McCreight discovered that Thunderbird did not properly manage during the worker lifecycle. An attacker could potentially exploit this issue to cause a denial of service.
During the worker lifecycle, a use-after-free condition could have occured, which could have led to a potentially exploitable crash. This vulnerability affects Firefox < 115.0.2 and Firefox ESR < 115.0.2.