Memory safety bugs present in Firefox 134, Thunderbird 134, Firefox ESR 115.19, Firefox ESR 128.6, Thunderbird 115.19, and Thunderbird 128.6. 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 < 135, Firefox ESR < 115.20, Firefox ESR < 128.7, Thunderbird < 128.7, and Thunderbird < 135.
This issue has been addressed in the following products: Red Hat Enterprise Linux 9 Via RHSA-2025:1066 http://access.redhat.com/errata/RHSA-2025:1066
This issue has been addressed in the following products: Red Hat Enterprise Linux 8.2 Advanced Update Support Via RHSA-2025:1133 http://access.redhat.com/errata/RHSA-2025:1133
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 Update Services for SAP Solutions Red Hat Enterprise Linux 8.4 Telecommunications Update Service Via RHSA-2025:1135 http://access.redhat.com/errata/RHSA-2025:1135
This issue has been addressed in the following products: Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions Via RHSA-2025:1138 http://access.redhat.com/errata/RHSA-2025:1138
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-2025:1136 http://access.redhat.com/errata/RHSA-2025:1136
This issue has been addressed in the following products: Red Hat Enterprise Linux 7 Extended Lifecycle Support Via RHSA-2025:1132 http://access.redhat.com/errata/RHSA-2025:1132
This issue has been addressed in the following products: Red Hat Enterprise Linux 8.8 Extended Update Support Via RHSA-2025:1137 http://access.redhat.com/errata/RHSA-2025:1137
This issue has been addressed in the following products: Red Hat Enterprise Linux 9.2 Extended Update Support Via RHSA-2025:1139 http://access.redhat.com/errata/RHSA-2025:1139
This issue has been addressed in the following products: Red Hat Enterprise Linux 9.4 Extended Update Support Via RHSA-2025:1140 http://access.redhat.com/errata/RHSA-2025:1140
This issue has been addressed in the following products: Red Hat Enterprise Linux 9 Via RHSA-2025:1184 http://access.redhat.com/errata/RHSA-2025:1184
This issue has been addressed in the following products: Red Hat Enterprise Linux 8 Via RHSA-2025:1283 http://access.redhat.com/errata/RHSA-2025:1283
This issue has been addressed in the following products: Red Hat Enterprise Linux 8 Via RHSA-2025:1292 http://access.redhat.com/errata/RHSA-2025:1292
This issue has been addressed in the following products: Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions Via RHSA-2025:1319 http://access.redhat.com/errata/RHSA-2025:1319
This issue has been addressed in the following products: Red Hat Enterprise Linux 9.2 Extended Update Support Via RHSA-2025:1317 http://access.redhat.com/errata/RHSA-2025:1317
This issue has been addressed in the following products: Red Hat Enterprise Linux 9.4 Extended Update Support Via RHSA-2025:1318 http://access.redhat.com/errata/RHSA-2025:1318
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 Update Services for SAP Solutions Red Hat Enterprise Linux 8.4 Telecommunications Update Service Via RHSA-2025:1339 http://access.redhat.com/errata/RHSA-2025:1339
This issue has been addressed in the following products: Red Hat Enterprise Linux 8.8 Extended Update Support Via RHSA-2025:1340 http://access.redhat.com/errata/RHSA-2025:1340
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-2025:1341 http://access.redhat.com/errata/RHSA-2025:1341
This issue has been addressed in the following products: Red Hat Enterprise Linux 8.2 Advanced Update Support Via RHSA-2025:1348 http://access.redhat.com/errata/RHSA-2025:1348