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Ubuntu 23.04: USN-6333-1 Critical: Multiple Thunderbird Exploits

Several security issues were fixed in Thunderbird.. ========================================================================== Ubuntu Security Notice USN-6333-1 September 04, 2023 thunderbird vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 23.04 - Ubuntu 22.04 LTS - Ubuntu 20.04 LTS Summary: Several security issues were fixed in Thunderbird. Software Description: - thunderbird: Mozilla Open Source mail and newsgroup client Details: Junsung Lee discovered that Thunderbird did not properly validate the text direction override unicode character in filenames. An attacker could potentially exploits this issue by spoofing file extension while attaching a file in emails. (CVE-2023-3417) Max Vlasov discovered that Thunderbird Offscreen Canvas did not properly track cross-origin tainting. An attacker could potentially exploit this issue to access image data from another site in violation of same-origin policy. (CVE-2023-4045) Alexander Guryanov discovered that Thunderbird did not properly update the value of a global variable in WASM JIT analysis in some circumstances. An attacker could potentially exploit this issue to cause a denial of service. (CVE-2023-4046) Mark Brand discovered that Thunderbird did not properly validate the size of an untrusted input stream. An attacker could potentially exploit this issue to cause a denial of service. (CVE-2023-4050) 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. (CVE-2023-4047, CVE-2023-4048, CVE-2023-4049, CVE-2023-4055, CVE-2023-4056) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 23.04: thunderbird 1:102.15.0+build1-0ubuntu0.23.04.1 Ubuntu 22.04 LTS: thunderbird 1:102.15.0+build1-0ubuntu0.22.04.1 Ubuntu 20.04 LTS: thunderbird 1:102.15.0+build1-0ubuntu0.20.04.1 In general, a standard system update will make all the necessary changes. References: https://ubuntu.com/security/notices/USN-6333-1 CVE-2023-3417, CVE-2023-4045, CVE-2023-4046, CVE-2023-4047, CVE-2023-4048, CVE-2023-4049, CVE-2023-4050, CVE-2023-4055, CVE-2023-4056 Package Information: https://launchpad.net/ubuntu/+source/thunderbird/1:102.15.0+build1-0ubuntu0.23.04.1 https://launchpad.net/ubuntu/+source/thunderbird/1:102.15.0+build1-0ubuntu0.22.04.1 https://launchpad.net/ubuntu/+source/thunderbird/1:102.15.0+build1-0ubuntu0.20.04.1 . Several vulnerabilities in Thunderbird on Ubuntu have been resolved, improving email security. Users are urged to update.. Thunderbird Issues, Ubuntu Security Update, Email Client Safety. . Severity: Critical. LinuxSecurity.com Team

Sep 04, 2023 •Critical Ubuntu