Memory safety bugs fixed in Firefox 127, Firefox ESR 115.12, and Thunderbird 115.12
CVE: CVE-2024-5700
Component: Mozilla
CWE: CWE-120
Severity: Important
CVSS v3: 7.5/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Release date: 2024-06-11T00:00:00+00:00

The Mozilla Foundation Security Advisory describes this flaw as:

Memory safety bugs present in Firefox 126, Firefox ESR 115.11, and Thunderbird 115.11. 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.

Statement: Red Hat Product Security rates the severity of this flaw as determined by the Mozilla Foundation Security Advisory.

Remediation:
For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258

After installing the update, Firefox must be restarted for the changes to take
effect.
For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258

All running instances of Thunderbird must be restarted for the update to take effect.
For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258

After installing the update, Firefox must be restarted for the changes to take
effect.
For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258

All running instances of Thunderbird must be restarted for the update to take effect.
For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258

After installing the update, Firefox must be restarted for the changes to take
effect.
For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258

All running instances of Thunderbird must be restarted for the update to take effect.
For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258

After installing the update, Firefox must be restarted for the changes to take
effect.
For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

All running instances of Thunderbird must be restarted for the update to take effect.
For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258

After installing the update, Firefox must be restarted for the changes to take
effect.
For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258

All running instances of Thunderbird must be restarted for the update to take effect.
For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258

After installing the update, Firefox must be restarted for the changes to take
effect.
For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258

All running instances of Thunderbird must be restarted for the update to take effect.
For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258

After installing the update, Firefox must be restarted for the changes to take
effect.
For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258

All running instances of Thunderbird must be restarted for the update to take effect.
For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258

After installing the update, Firefox must be restarted for the changes to take
effect.
For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258

All running instances of Thunderbird must be restarted for the update to take effect.
Before applying this update, make sure all previously released errata
relevant to your system have been applied.

For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258
For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258

All running instances of Thunderbird must be restarted for the update to take effect.