ALSA-2024:0025

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability.

This update upgrades Firefox to version 115.6.0 ESR.

Security Fix(es):

• Mozilla: Heap-buffer-overflow affecting WebGL DrawElementsInstanced method with Mesa VM driver (CVE-2023-6856)
• Mozilla: Memory safety bugs fixed in Firefox 121, Firefox ESR 115.6, and Thunderbird 115.6 (CVE-2023-6864)
• Mozilla: Potential exposure of uninitialized data in EncryptingOutputStream (CVE-2023-6865)
• Mozilla: Symlinks may resolve to smaller than expected buffers (CVE-2023-6857)
• Mozilla: Heap buffer overflow in nsTextFragment (CVE-2023-6858)
• Mozilla: Use-after-free in PR_GetIdentitiesLayer (CVE-2023-6859)
• Mozilla: Potential sandbox escape due to VideoBridge lack of texture validation (CVE-2023-6860)
• Mozilla: Heap buffer overflow affected nsWindow::PickerOpen(void) in headless mode (CVE-2023-6861)
• Mozilla: Use-after-free in nsDNSService (CVE-2023-6862)
• Mozilla: Clickjacking permission prompts using the popup transition (CVE-2023-6867)
• Mozilla: Undefined behavior in ShutdownObserver() (CVE-2023-6863)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.