Ubuntu Security Notice 6509-2 - USN-6509-1 fixed vulnerabilities in Firefox. The update introduced several minor regressions. This update fixes the problem. Multiple security issues were discovered in Firefox. If a user were tricked into opening a specially crafted website, an attacker could potentially exploit these to cause a denial of service, obtain sensitive information across domains, or execute arbitrary code. It was discovered that Firefox did not properly manage memory when images were created on the canvas element. An attacker could potentially exploit this issue to obtain sensitive information. It discovered that Firefox incorrectly handled certain memory when using a MessagePort. An attacker could potentially exploit this issue to cause a denial of service. It discovered that Firefox incorrectly did not properly manage ownership in ReadableByteStreams. An attacker could potentially exploit this issue to cause a denial of service. It discovered that Firefox incorrectly did not properly manage copy operations when using Selection API in X11. An attacker could potentially exploit this issue to obtain sensitive information. Rachmat Abdul Rokhim discovered incorrectly handled parsing of relative URLS starting with "///". An attacker could potentially exploit this issue to cause a denial of service.
ad83f1762f0c9b91d83173c5919f250795adb5f0c74dd9b083106a33e56ea5bfUbuntu Security Notice 6515-1 - 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. It was discovered that Thunderbird did not properly manage memory when images were created on the canvas element. An attacker could potentially exploit this issue to obtain sensitive information.
d6191b54a0838b3afcde840585c714c6bd2dee7e37aba7b54a20750739c63df2Debian Linux Security Advisory 5566-1 - Multiple security issues were discovered in Thunderbird, which could result in denial of service or the execution of arbitrary code.
dc1354b24c85d0736abec5ec30d71ed0e434f0143fd6ad92b25792e7a5fe5154Ubuntu Security Notice 6509-1 - Multiple security issues were discovered in Firefox. If a user were tricked into opening a specially crafted website, an attacker could potentially exploit these to cause a denial of service, obtain sensitive information across domains, or execute arbitrary code. It was discovered that Firefox did not properly manage memory when images were created on the canvas element. An attacker could potentially exploit this issue to obtain sensitive information.
b829fdf51cf2a37d15b78f3f6807c30a0b585c7fbda044f4d27c269eebcb3308Debian Linux Security Advisory 5561-1 - Multiple security issues have been found in the Mozilla Firefox web browser, which could potentially result in the execution of arbitrary code, information leaks or clickjacking.
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