A use-after-free could have occured when an HTTP2 session object was released on a different thread, leading to memory corruption and a potentially exploitable crash. This vulnerability affects Firefox < 93, Thunderbird < 91.3, and Firefox ESR < 91.3.

A use-after-free could have occured when an HTTP2 session object was released on a different thread, leading to memory corruption and a potentially exploitable crash. This vulnerability affects Firefox < 93, Thunderbird < 91.3, and Firefox ESR < 91.3.

Affected: openEuler:22.03-LTS: firefox

Mozilla Firefox is a standalone web browser, designed for standards compliance and performance. Its functionality can be enhanced via a plethora of extensions. Mozilla Firefox is an open-source web browser, designed for standards compliance, performance and portability. Security Fix(es): Mozilla developers reported memory safety bugs present in Firefox for Android 79. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox &lt; 80, Firefox ESR &lt; 78.2, Thunderbird &lt; 78.2, and Firefox for Android &lt; 80.(CVE-2020-15670) Mozilla developers reported memory safety bugs present in Firefox 80 and Firefox ESR 78.2. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox &lt; 81, Thunderbird &lt; 78.3, and Firefox ESR &lt; 78.3.(CVE-2020-15673) Mozilla developers reported memory safety bugs present in Firefox 80. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox &lt; 81.(CVE-2020-15674) When processing surfaces, the lifetime may outlive a persistent buffer leading to memory corruption and a potentially exploitable crash. This vulnerability affects F…

Mozilla: iframe sandbox rules did not apply to XSLT stylesheets Mozilla: Use-after-free in file picker dialog Mozilla: Firefox could be coaxed into going into fullscreen mode without notification or warning Mozilla: Opportunistic Encryption in HTTP2 could be used to bypass the Same-Origin-Policy on services hosted on other ports Mozilla: Permission Prompt could be overlaid, resulting in user confusion and potential spoofing Mozilla: Javascript alert box could have been spoofed onto an arbitrary domain Mozilla: Memory safety bugs fixed in Firefox 94 and Firefox ESR 91.3 Mozilla: Use-after-free in HTTP2 Session object

Mozilla: iframe sandbox rules did not apply to XSLT stylesheets Mozilla: Use-after-free in file picker dialog Mozilla: Firefox could be coaxed into going into fullscreen mode without notification or warning Mozilla: Opportunistic Encryption in HTTP2 could be used to bypass the Same-Origin-Policy on services hosted on other ports Mozilla: Permission Prompt could be overlaid, resulting in user confusion and potential spoofing Mozilla: Javascript alert box could have been spoofed onto an arbitrary domain thunderbird: Memory corruption when processing S/MIME messages Mozilla: Memory safety bugs fixed in Firefox 94 and Firefox ESR 91.3 Mozilla: Use-after-free in HTTP2 Session object

Affected: Ubuntu:18.04:LTS: thunderbird, Ubuntu:20.04:LTS: thunderbird

A use-after-free could have occured when an HTTP2 session object was released on a different thread, leading to memory corruption and a potentially exploitable crash. This vulnerability affects Firefox < 93, Thunderbird < 91.3, and Firefox ESR < 91.3.