**Issue Overview:** A potential use-after-free vulnerability existed in SVG Images if the Refresh Driver was destroyed at an inopportune time. This could have lead to memory corruption or a potentially exploitable crash. *Note*: This advisory was added on December 13th, 2022 after discovering it was inadvertently left out of the original advisory. The fix was included in the original release of Firefox 106. This vulnerability affects Firefox < 106\. (CVE-2022-46884) When Firefox is configured to block storage of all cookies, it was still possible to store data in localstorage by using an iframe with a source of 'about:blank'. This could have led to malicious websites storing tracking data without permission. This vulnerability affects Firefox < 115\. (CVE-2023-3482) Insufficient validation in the Drag and Drop API in conjunction with social engineering, may have allowed an attacker to trick end-users into creating a shortcut to local system files. This could have been leveraged to execute arbitrary code. This vulnerability affects Firefox < 115\. (CVE-2023-37203) A website could have obscured the fullscreen notification by using an option element by introducing lag via an expensive computational function. This could have led to user confusion and possible spoofing attacks. This vulnerability affects Firefox < 115\. (CVE-2023-37204) The use of RTL Arabic characters in the address bar may have allowed for URL spoofing. This vulnerability affects Firefox < 115\. (CVE-2023-37205) Uploading files which contain symlinks may have allowed an attacker to trick a user into submitting sensitive data to a malicious website. This vulnerability affects Firefox < 115\. (CVE-2023-37206) A use-after-free condition existed in `NotifyOnHistoryReload` where a `LoadingSessionHistoryEntry` object was freed and a reference to that object remained. This resulted in a potentially exploitable condition when the reference to that object was later reused. This vulnerability affects Firefox < 115\. (CVE-2023-37209) A website could prevent a user from exiting full-screen mode via alert and prompt calls. This could lead to user confusion and possible spoofing attacks. This vulnerability affects Firefox < 115\. (CVE-2023-37210) Memory safety bugs present in Firefox 114. 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 < 115\. (CVE-2023-37212) The Tungstenite crate through 0.20.0 for Rust allows remote attackers to cause a denial of service (minutes of CPU consumption) via an excessive length of an HTTP header in a client handshake. The length affects both how many times a parse is attempted (e.g., thousands of times) and the average amount of data for each parse attempt (e.g., millions of bytes). (CVE-2023-43669) A compromised content process could have provided malicious data to `FilterNodeD2D1` resulting in an out-of-bounds write, leading to a potentially exploitable crash in a privileged process. This vulnerability affects Firefox < 118, Firefox ESR < 115.3, and Thunderbird < 115.3. (CVE-2023-5168) A compromised content process could have provided malicious data in a `PathRecording` resulting in an out-of-bounds write, leading to a potentially exploitable crash in a privileged process. This vulnerability affects Firefox < 118, Firefox ESR < 115.3, and Thunderbird < 115.3. (CVE-2023-5169) During Ion compilation, a Garbage Collection could have resulted in a use-after-free condition, allowing an attacker to write two NUL bytes, and cause a potentially exploitable crash. This vulnerability affects Firefox < 118, Firefox ESR < 115.3, and Thunderbird < 115.3. (CVE-2023-5171) Memory safety bugs present in Firefox 117, Firefox ESR 115.2, and Thunderbird 115.2. 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 < 118, Firefox ESR < 115.3, and Thunderbird < 115.3. (CVE-2023-5176) The Mozilla Foundation Security Advisory describes this flaw as: It was possible for certain browser prompts and dialogs to be activated or dismissed unintentionally by the user due to an insufficient activation-delay. (CVE-2023-5721) The Mozilla Foundation Security Advisory describes this flaw as: Drivers are not always robust to extremely large draw calls and in some cases this scenario could have led to a crash. (CVE-2023-5724) The Mozilla Foundation Security Advisory describes this flaw as: A malicious installed WebExtension could open arbitrary URLs, which under the right circumstance could be leveraged to collect sensitive user data. (CVE-2023-5725) The Mozilla Foundation Security Advisory describes this flaw as: During garbage collection extra operations were performed on a object that should not be. This could have led to a potentially exploitable crash. (CVE-2023-5728) The Mozilla Foundation Security Advisory describes this flaw as: Memory safety bugs present in Firefox 118, Firefox ESR 115.3, and Thunderbird 115.3. 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. (CVE-2023-5730) The Mozilla Foundation Security Advisory describes this flaw as: An attacker could have created a malicious link using bidirectional characters to spoof the location in the address bar when visited. (CVE-2023-5732) **Affected Packages:** firefox **Note:** This advisory is applicable to Amazon Linux 2 - Firefox Extra. Visit this page to learn more about Amazon Linux 2 (AL2) Extras and this FAQ section for the difference between AL2 Core and AL2 Extras advisories. **Issue Correction:** Run _yum update firefox_ or _yum update --advisory ALAS2FIREFOX-2023-017_ to update your system. **New Packages:** aarch64: firefox-115.4.0-1.amzn2.0.1.aarch64 firefox-debuginfo-115.4.0-1.amzn2.0.1.aarch64 src: firefox-115.4.0-1.amzn2.0.1.src x86_64: firefox-115.4.0-1.amzn2.0.1.x86_64 firefox-debuginfo-115.4.0-1.amzn2.0.1.x86_64 ### Additional References Release Notes: Amazon Linux 2 Release Notes Red Hat: CVE-2022-46884, CVE-2023-3482, CVE-2023-37203, CVE-2023-37204, CVE-2023-37205, CVE-2023-37206, CVE-2023-37209, CVE-2023-37210, CVE-2023-37212, CVE-2023-43669, CVE-2023-5168, CVE-2023-5169, CVE-2023-5171, CVE-2023-5176, CVE-2023-5721, CVE-2023-5724, CVE-2023-5725, CVE-2023-5728, CVE-2023-5730, CVE-2023-5732 Mitre: CVE-2022-46884, CVE-2023-3482, CVE-2023-37203, CVE-2023-37204, CVE-2023-37205, CVE-2023-37206, CVE-2023-37209, CVE-2023-37210, CVE-2023-37212, CVE-2023-43669, CVE-2023-5168, CVE-2023-5169, CVE-2023-5171, CVE-2023-5176, CVE-2023-5721, CVE-2023-5724, CVE-2023-5725, CVE-2023-5728, CVE-2023-5730, CVE-2023-5732