CVE-2023-6856
Fixed in a distro release EPSS 21%
The WebGL `DrawElementsInstanced` method was susceptible to a heap buffer overflow when used on systems with the Mesa VM driver. This issue could allow an attacker to perform remote code execution and sandbox escape. This vulnerability affects Firefox ESR < 115.6, Thunderbird < 115.6, and Firefox < 121.
Products: Mozilla Firefox ESR, Mozilla Thunderbird, Mozilla Firefox
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| AlmaLinux 8 | firefox | 115.6.0-1.el8_9.alma |
| AlmaLinux 8 | thunderbird | 115.6.0-1.el8_9.alma |
| AlmaLinux 9 | firefox | 115.6.0-1.el9_3.alma |
| AlmaLinux 9 | firefox-x11 | 115.6.0-1.el9_3.alma |
| AlmaLinux 9 | thunderbird | 115.6.0-1.el9_3.alma |
| Amazon Linux 2 | thunderbird | 115.6.0-1.amzn2.0.1 |
| Chainguard | firefox-esr | 121.0-r0 |
| Debian 10 | firefox-esr | 115.6.0esr-1~deb10u1 |
| Debian 10 | thunderbird | 1:115.6.0-1~deb10u1 |
| Debian 11 | firefox-esr | 115.6.0esr-1~deb11u1 |
| Debian 11 | thunderbird | 1:115.6.0-1~deb11u1 |
| Debian 12 | firefox-esr | 115.6.0esr-1~deb12u1 |
| Debian 12 | thunderbird | 1:115.6.0-1~deb12u1 |
| Debian 13 | firefox-esr | 115.6.0esr-1 |
| Debian 13 | thunderbird | 1:115.6.0-1 |
| Debian 14 | firefox-esr | 115.6.0esr-1 |
| Debian 14 | thunderbird | 1:115.6.0-1 |
| Red Hat Enterprise Linux 7 | firefox | 0:115.6.0-1.el7_9 |
| Red Hat Enterprise Linux 7 | firefox-debuginfo | 0:115.6.0-1.el7_9 |
| Red Hat Enterprise Linux 7 | thunderbird | 0:115.6.0-1.el7_9 |
| Red Hat Enterprise Linux 7 | thunderbird-debuginfo | 0:115.6.0-1.el7_9 |
| Red Hat Enterprise Linux 8 | firefox | 0:115.6.0-1.el8_9 |
| Red Hat Enterprise Linux 8 | firefox-debuginfo | 0:115.6.0-1.el8_9 |
| Red Hat Enterprise Linux 8 | firefox-debugsource | 0:115.6.0-1.el8_9 |
| Red Hat Enterprise Linux 8 | thunderbird | 0:115.6.0-1.el8_9 |
| Red Hat Enterprise Linux 8 | thunderbird-debuginfo | 0:115.6.0-1.el8_9 |
| Red Hat Enterprise Linux 8 | thunderbird-debugsource | 0:115.6.0-1.el8_9 |
| Red Hat Enterprise Linux 9 | firefox | 0:115.6.0-1.el9_3 |
| Red Hat Enterprise Linux 9 | firefox-debuginfo | 0:115.6.0-1.el9_3 |
| Red Hat Enterprise Linux 9 | firefox-debugsource | 0:115.6.0-1.el9_3 |
| Red Hat Enterprise Linux 9 | firefox-x11 | 0:115.6.0-1.el9_3 |
| Red Hat Enterprise Linux 9 | thunderbird | 0:115.6.0-1.el9_3 |
| Red Hat Enterprise Linux 9 | thunderbird-debuginfo | 0:115.6.0-1.el9_3 |
| Red Hat Enterprise Linux 9 | thunderbird-debugsource | 0:115.6.0-1.el9_3 |
| Red Hat rhel aus 8.2 | firefox | 0:115.6.0-1.el8_2 |
| Red Hat rhel aus 8.2 | firefox-debuginfo | 0:115.6.0-1.el8_2 |
| Red Hat rhel aus 8.2 | firefox-debugsource | 0:115.6.0-1.el8_2 |
| Red Hat rhel aus 8.2 | thunderbird | 0:115.6.0-1.el8_2 |
| Red Hat rhel aus 8.2 | thunderbird-debuginfo | 0:115.6.0-1.el8_2 |
| Red Hat rhel aus 8.2 | thunderbird-debugsource | 0:115.6.0-1.el8_2 |
| Red Hat rhel aus 8.4 | firefox | 0:115.6.0-1.el8_4 |
| Red Hat rhel aus 8.4 | firefox-debuginfo | 0:115.6.0-1.el8_4 |
| Red Hat rhel aus 8.4 | firefox-debugsource | 0:115.6.0-1.el8_4 |
| Red Hat rhel aus 8.4 | thunderbird | 0:115.6.0-1.el8_4 |
| Red Hat rhel aus 8.4 | thunderbird-debuginfo | 0:115.6.0-1.el8_4 |
| Red Hat rhel aus 8.4 | thunderbird-debugsource | 0:115.6.0-1.el8_4 |
| Red Hat rhel e4s 8.2 | firefox | 0:115.6.0-1.el8_2 |
| Red Hat rhel e4s 8.2 | firefox-debuginfo | 0:115.6.0-1.el8_2 |
| Red Hat rhel e4s 8.2 | firefox-debugsource | 0:115.6.0-1.el8_2 |
| Red Hat rhel e4s 8.2 | thunderbird | 0:115.6.0-1.el8_2 |
| Red Hat rhel e4s 8.2 | thunderbird-debuginfo | 0:115.6.0-1.el8_2 |
| Red Hat rhel e4s 8.2 | thunderbird-debugsource | 0:115.6.0-1.el8_2 |
| Red Hat rhel e4s 8.4 | firefox | 0:115.6.0-1.el8_4 |
| Red Hat rhel e4s 8.4 | firefox-debuginfo | 0:115.6.0-1.el8_4 |
| Red Hat rhel e4s 8.4 | firefox-debugsource | 0:115.6.0-1.el8_4 |
| Red Hat rhel e4s 8.4 | thunderbird | 0:115.6.0-1.el8_4 |
| Red Hat rhel e4s 8.4 | thunderbird-debuginfo | 0:115.6.0-1.el8_4 |
| Red Hat rhel e4s 8.4 | thunderbird-debugsource | 0:115.6.0-1.el8_4 |
| Red Hat rhel eus 8.6 | firefox | 0:115.6.0-1.el8_6 |
| Red Hat rhel eus 8.6 | firefox-debuginfo | 0:115.6.0-1.el8_6 |
| Red Hat rhel eus 8.6 | firefox-debugsource | 0:115.6.0-1.el8_6 |
| Red Hat rhel eus 8.6 | thunderbird | 0:115.6.0-1.el8_6 |
| Red Hat rhel eus 8.6 | thunderbird-debuginfo | 0:115.6.0-1.el8_6 |
| Red Hat rhel eus 8.6 | thunderbird-debugsource | 0:115.6.0-1.el8_6 |
| Red Hat rhel eus 8.8 | firefox | 0:115.6.0-1.el8_8 |
| Red Hat rhel eus 8.8 | firefox-debuginfo | 0:115.6.0-1.el8_8 |
| Red Hat rhel eus 8.8 | firefox-debugsource | 0:115.6.0-1.el8_8 |
| Red Hat rhel eus 8.8 | thunderbird | 0:115.6.0-1.el8_8 |
| Red Hat rhel eus 8.8 | thunderbird-debuginfo | 0:115.6.0-1.el8_8 |
| Red Hat rhel eus 8.8 | thunderbird-debugsource | 0:115.6.0-1.el8_8 |
| Red Hat rhel eus 9.0 | firefox | 0:115.6.0-1.el9_0 |
| Red Hat rhel eus 9.0 | firefox-debuginfo | 0:115.6.0-1.el9_0 |
| Red Hat rhel eus 9.0 | firefox-debugsource | 0:115.6.0-1.el9_0 |
| Red Hat rhel eus 9.0 | thunderbird | 0:115.6.0-1.el9_0 |
| Red Hat rhel eus 9.0 | thunderbird-debuginfo | 0:115.6.0-1.el9_0 |
| Red Hat rhel eus 9.0 | thunderbird-debugsource | 0:115.6.0-1.el9_0 |
| Red Hat rhel eus 9.2 | firefox | 0:115.6.0-1.el9_2 |
| Red Hat rhel eus 9.2 | firefox-debuginfo | 0:115.6.0-1.el9_2 |
| Red Hat rhel eus 9.2 | firefox-debugsource | 0:115.6.0-1.el9_2 |
| Red Hat rhel eus 9.2 | firefox-x11 | 0:115.6.0-1.el9_2 |
| Red Hat rhel eus 9.2 | thunderbird | 0:115.6.0-1.el9_2 |
| Red Hat rhel eus 9.2 | thunderbird-debuginfo | 0:115.6.0-1.el9_2 |
| Red Hat rhel eus 9.2 | thunderbird-debugsource | 0:115.6.0-1.el9_2 |
| Red Hat rhel tus 8.2 | firefox | 0:115.6.0-1.el8_2 |
| Red Hat rhel tus 8.2 | firefox-debuginfo | 0:115.6.0-1.el8_2 |
| Red Hat rhel tus 8.2 | firefox-debugsource | 0:115.6.0-1.el8_2 |
| Red Hat rhel tus 8.2 | thunderbird | 0:115.6.0-1.el8_2 |
| Red Hat rhel tus 8.2 | thunderbird-debuginfo | 0:115.6.0-1.el8_2 |
| Red Hat rhel tus 8.2 | thunderbird-debugsource | 0:115.6.0-1.el8_2 |
| Red Hat rhel tus 8.4 | firefox | 0:115.6.0-1.el8_4 |
| Red Hat rhel tus 8.4 | firefox-debuginfo | 0:115.6.0-1.el8_4 |
| Red Hat rhel tus 8.4 | firefox-debugsource | 0:115.6.0-1.el8_4 |
| Red Hat rhel tus 8.4 | thunderbird | 0:115.6.0-1.el8_4 |
| Red Hat rhel tus 8.4 | thunderbird-debuginfo | 0:115.6.0-1.el8_4 |
| Red Hat rhel tus 8.4 | thunderbird-debugsource | 0:115.6.0-1.el8_4 |
| Rocky Linux 8 | firefox | 0:115.6.0-1.el8_9 |
| Rocky Linux 8 | thunderbird | 0:115.6.0-1.el8_9 |
| SUSE Enterprise Storage 7.1 | MozillaFirefox | 115.6.0-150200.152.120.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS | MozillaFirefox | 115.6.0-150000.150.119.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS | MozillaFirefox | 115.6.0-150200.152.120.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS | MozillaFirefox | 115.6.0-150200.152.120.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS | MozillaFirefox | 115.6.0-150200.152.120.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | MozillaFirefox | 115.6.0-150200.152.120.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | MozillaFirefox | 115.6.0-150200.152.120.1 |
| SUSE Linux Enterprise Module for Desktop Applications 15 SP4 | MozillaFirefox | 115.6.0-150200.152.120.1 |
| SUSE Linux Enterprise Module for Desktop Applications 15 SP5 | MozillaFirefox | 115.6.0-150200.152.120.1 |
| SUSE Linux Enterprise Module for Package Hub 15 SP5 | MozillaThunderbird | 115.6.0-150200.8.142.2 |
| SUSE Linux Enterprise Real Time 15 SP4 | MozillaFirefox | 115.6.0-150200.152.120.1 |
| SUSE Linux Enterprise Server 12 SP5 | MozillaFirefox | 115.6.0-112.194.1 |
| SUSE Linux Enterprise Server 15 SP1-LTSS | MozillaFirefox | 115.6.0-150000.150.119.1 |
| SUSE Linux Enterprise Server 15 SP2-LTSS | MozillaFirefox | 115.6.0-150200.152.120.1 |
| SUSE Linux Enterprise Server 15 SP3-LTSS | MozillaFirefox | 115.6.0-150200.152.120.1 |
| SUSE Linux Enterprise Server 15 SP4-LTSS | MozillaFirefox | 115.6.0-150200.152.120.1 |
| SUSE Linux Enterprise Server for SAP Applications 12 SP5 | MozillaFirefox | 115.6.0-112.194.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP1 | MozillaFirefox | 115.6.0-150000.150.119.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP2 | MozillaFirefox | 115.6.0-150200.152.120.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP3 | MozillaFirefox | 115.6.0-150200.152.120.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | MozillaFirefox | 115.6.0-150200.152.120.1 |
| SUSE Linux Enterprise Software Development Kit 12 SP5 | MozillaFirefox | 115.6.0-112.194.1 |
| SUSE Linux Enterprise Workstation Extension 15 SP5 | MozillaThunderbird | 115.6.0-150200.8.142.2 |
| Ubuntu 18.04 LTS | mozjs38 | no fix |
| Ubuntu 18.04 LTS | mozjs52 | no fix |
| Ubuntu 20.04 LTS | firefox | 121.0+build1-0ubuntu0.20.04.1 |
| Ubuntu 20.04 LTS | mozjs52 | no fix |
| Ubuntu 20.04 LTS | mozjs68 | no fix |
| Ubuntu 20.04 LTS | thunderbird | 1:115.6.0+build2-0ubuntu0.20.04.1 |
| Ubuntu 22.04 LTS | mozjs102 | no fix |
| Ubuntu 22.04 LTS | mozjs78 | no fix |
| Ubuntu 22.04 LTS | mozjs91 | no fix |
| Ubuntu 22.04 LTS | thunderbird | 1:115.6.0+build2-0ubuntu0.22.04.1 |
| Ubuntu 24.04 LTS | mozjs102 | no fix |
| Ubuntu 24.04 LTS | thunderbird | 1:115.6.0+build2-0ubuntu1 |
| openSUSE Leap 15.4 | MozillaFirefox | 115.6.0-150200.152.120.1 |
| openSUSE Leap 15.5 | MozillaFirefox | 115.6.0-150200.152.120.1 |
| openSUSE Leap 15.5 | MozillaThunderbird | 115.6.0-150200.8.142.2 |
| openSUSE Tumbleweed | MozillaFirefox | 121.0-1.1 |
| openSUSE Tumbleweed | MozillaThunderbird | 115.6.0-1.1 |
| openSUSE Tumbleweed | firefox-esr | 128.5.1-1.1 |