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Security Mirrored from RHSA-2024:0012
Issued at: 2024-01-09
Updated at: 2024-01-09


Important: firefox security update


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 <code>DrawElementsInstanced</code> 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 <code>EncryptingOutputStream</code> (CVE-2023-6865)

* Mozilla: Symlinks may resolve to smaller than expected buffers (CVE-2023-6857)

* Mozilla: Heap buffer overflow in <code>nsTextFragment</code> (CVE-2023-6858)

* Mozilla: Use-after-free in PR_GetIdentitiesLayer (CVE-2023-6859)

* Mozilla: Potential sandbox escape due to <code>VideoBridge</code> lack of texture validation (CVE-2023-6860)

* Mozilla: Heap buffer overflow affected <code>nsWindow::PickerOpen(void)</code> in headless mode (CVE-2023-6861)

* Mozilla: Use-after-free in <code>nsDNSService</code> (CVE-2023-6862)

* Mozilla: Clickjacking permission prompts using the popup transition (CVE-2023-6867)

* Mozilla: Undefined behavior in <code>ShutdownObserver()</code> (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.

Affected products

Rocky Linux 8 aarch64


2255360 2255361 2255362 2255363 2255364 2255365 2255366 2255367 2255368 2255369 2255370


CVE-2023-6856 CVE-2023-6857 CVE-2023-6858 CVE-2023-6859 CVE-2023-6860 CVE-2023-6861 CVE-2023-6862 CVE-2023-6863 CVE-2023-6864 CVE-2023-6865 CVE-2023-6867

Affected packages

Rocky Linux 8 aarch64 - AppStream

firefox-0:115.6.0-1.el8_9.aarch64.rpm firefox-0:115.6.0-1.el8_9.src.rpm firefox-debuginfo-0:115.6.0-1.el8_9.aarch64.rpm firefox-debugsource-0:115.6.0-1.el8_9.aarch64.rpm