Memory safety bugs present in Firefox ESR 115.28, Firefox ESR 140.3, Thunderbird ESR 140.3, Firefox 143 and Thunderbird 143. 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 < 144, Firefox ESR < 115.29, Firefox ESR < 140.4, Thunderbird < 144, and Thunderbird < 140.4.
This issue has been addressed in the following products: Red Hat Enterprise Linux 10 Via RHSA-2025:18154 https://access.redhat.com/errata/RHSA-2025:18154
This issue has been addressed in the following products: Red Hat Enterprise Linux 9 Via RHSA-2025:18155 https://access.redhat.com/errata/RHSA-2025:18155
This issue has been addressed in the following products: Red Hat Enterprise Linux 8 Via RHSA-2025:18285 https://access.redhat.com/errata/RHSA-2025:18285
This issue has been addressed in the following products: Red Hat Enterprise Linux 10 Via RHSA-2025:18320 https://access.redhat.com/errata/RHSA-2025:18320
This issue has been addressed in the following products: Red Hat Enterprise Linux 9 Via RHSA-2025:18321 https://access.redhat.com/errata/RHSA-2025:18321
This issue has been addressed in the following products: Red Hat Enterprise Linux 8 Via RHSA-2025:18983 https://access.redhat.com/errata/RHSA-2025:18983
This issue has been addressed in the following products: Red Hat Enterprise Linux 7 Extended Lifecycle Support Via RHSA-2025:19278 https://access.redhat.com/errata/RHSA-2025:19278
This issue has been addressed in the following products: Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Via RHSA-2025:19939 https://access.redhat.com/errata/RHSA-2025:19939
This issue has been addressed in the following products: Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions Red Hat Enterprise Linux 8.6 Telecommunications Update Service Via RHSA-2025:19941 https://access.redhat.com/errata/RHSA-2025:19941
This issue has been addressed in the following products: Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Red Hat Enterprise Linux 8.8 Telecommunications Update Service Via RHSA-2025:19942 https://access.redhat.com/errata/RHSA-2025:19942
This issue has been addressed in the following products: Red Hat Enterprise Linux 9.4 Extended Update Support Via RHSA-2025:19945 https://access.redhat.com/errata/RHSA-2025:19945
This issue has been addressed in the following products: Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions Via RHSA-2025:19943 https://access.redhat.com/errata/RHSA-2025:19943
This issue has been addressed in the following products: Red Hat Enterprise Linux 8.2 Advanced Update Support Via RHSA-2025:19938 https://access.redhat.com/errata/RHSA-2025:19938
This issue has been addressed in the following products: Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Via RHSA-2025:19944 https://access.redhat.com/errata/RHSA-2025:19944
This issue has been addressed in the following products: Red Hat Enterprise Linux 8.2 Advanced Update Support Via RHSA-2025:21054 https://access.redhat.com/errata/RHSA-2025:21054
This issue has been addressed in the following products: Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Via RHSA-2025:21055 https://access.redhat.com/errata/RHSA-2025:21055
This issue has been addressed in the following products: Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions Red Hat Enterprise Linux 8.6 Telecommunications Update Service Via RHSA-2025:21056 https://access.redhat.com/errata/RHSA-2025:21056
This issue has been addressed in the following products: Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions Via RHSA-2025:21058 https://access.redhat.com/errata/RHSA-2025:21058
This issue has been addressed in the following products: Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Red Hat Enterprise Linux 8.8 Telecommunications Update Service Via RHSA-2025:21057 https://access.redhat.com/errata/RHSA-2025:21057
This issue has been addressed in the following products: Red Hat Enterprise Linux 9.4 Extended Update Support Via RHSA-2025:21059 https://access.redhat.com/errata/RHSA-2025:21059
This issue has been addressed in the following products: Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Via RHSA-2025:21064 https://access.redhat.com/errata/RHSA-2025:21064