On 64-bit platforms IonMonkey-JIT only wrote 32 bits of the 64-bit return value space on the stack. Baseline-JIT, however, read the entire 64 bits. This vulnerability affects Firefox < 141, Firefox ESR < 115.26, Firefox ESR < 128.13, Firefox ESR < 140.1, Thunderbird < 141, Thunderbird < 128.13, and Thunderbird < 140.1.
The code uses a variable that has not been initialized, leading to unpredictable or unintended results.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Firefox | Mozilla | * | 115.26.0 (excluding) |
| Firefox | Mozilla | * | 141.0 (excluding) |
| Firefox | Mozilla | 128.0 (including) | 128.13.0 (excluding) |
| Firefox | Mozilla | 140.0 (including) | 140.1.0 (excluding) |
| Thunderbird | Mozilla | * | 128.13.0 (excluding) |
| Thunderbird | Mozilla | * | 141.0 (excluding) |
| Thunderbird | Mozilla | 140.0 (including) | 140.1.0 (excluding) |
| Red Hat Enterprise Linux 10 | RedHat | firefox-0:128.13.0-1.el10_0 | * |
| Red Hat Enterprise Linux 10 | RedHat | thunderbird-0:128.13.0-3.el10_0 | * |
| Red Hat Enterprise Linux 7 Extended Lifecycle Support | RedHat | firefox-0:128.13.0-1.el7_9 | * |
| Red Hat Enterprise Linux 8 | RedHat | firefox-0:128.13.0-1.el8_10 | * |
| Red Hat Enterprise Linux 8 | RedHat | thunderbird-0:128.13.0-3.el8_10 | * |
| Red Hat Enterprise Linux 8.2 Advanced Update Support | RedHat | firefox-0:128.13.0-1.el8_2 | * |
| Red Hat Enterprise Linux 8.2 Advanced Update Support | RedHat | thunderbird-0:128.13.0-3.el8_2 | * |
| Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | RedHat | firefox-0:128.13.0-1.el8_4 | * |
| Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | RedHat | thunderbird-0:128.13.0-3.el8_4 | * |
| Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On | RedHat | firefox-0:128.13.0-1.el8_4 | * |
| Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On | RedHat | thunderbird-0:128.13.0-3.el8_4 | * |
| Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | RedHat | firefox-0:128.13.0-1.el8_6 | * |
| Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | RedHat | thunderbird-0:128.13.0-3.el8_6 | * |
| Red Hat Enterprise Linux 8.6 Telecommunications Update Service | RedHat | firefox-0:128.13.0-1.el8_6 | * |
| Red Hat Enterprise Linux 8.6 Telecommunications Update Service | RedHat | thunderbird-0:128.13.0-3.el8_6 | * |
| Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions | RedHat | firefox-0:128.13.0-1.el8_6 | * |
| Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions | RedHat | thunderbird-0:128.13.0-3.el8_6 | * |
| Red Hat Enterprise Linux 8.8 Telecommunications Update Service | RedHat | firefox-0:128.13.0-1.el8_8 | * |
| Red Hat Enterprise Linux 8.8 Telecommunications Update Service | RedHat | thunderbird-0:128.13.0-3.el8_8 | * |
| Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions | RedHat | firefox-0:128.13.0-1.el8_8 | * |
| Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions | RedHat | thunderbird-0:128.13.0-3.el8_8 | * |
| Red Hat Enterprise Linux 9 | RedHat | firefox-0:128.13.0-1.el9_6 | * |
| Red Hat Enterprise Linux 9 | RedHat | thunderbird-0:128.13.0-3.el9_6 | * |
| Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions | RedHat | firefox-0:128.13.0-1.el9_0 | * |
| Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions | RedHat | thunderbird-0:128.13.0-3.el9_0 | * |
| Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions | RedHat | firefox-0:128.13.0-1.el9_2 | * |
| Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions | RedHat | thunderbird-0:128.13.0-3.el9_2 | * |
| Red Hat Enterprise Linux 9.4 Extended Update Support | RedHat | firefox-0:128.13.0-1.el9_4 | * |
| Red Hat Enterprise Linux 9.4 Extended Update Support | RedHat | thunderbird-0:128.13.0-3.el9_4 | * |
| Mozjs102 | Ubuntu | esm-apps/noble | * |
| Mozjs102 | Ubuntu | jammy | * |
| Mozjs102 | Ubuntu | noble | * |
| Mozjs115 | Ubuntu | devel | * |
| Mozjs115 | Ubuntu | noble | * |
| Mozjs115 | Ubuntu | plucky | * |
| Mozjs52 | Ubuntu | esm-apps/focal | * |
| Mozjs52 | Ubuntu | esm-infra/bionic | * |
| Mozjs68 | Ubuntu | esm-infra/focal | * |
| Mozjs78 | Ubuntu | esm-apps/jammy | * |
| Mozjs78 | Ubuntu | jammy | * |
| Mozjs91 | Ubuntu | jammy | * |
| Thunderbird | Ubuntu | jammy | * |
| Thunderbird | Ubuntu | upstream | * |