ALT-PU-2025-4968-2

Package update firefox-esr in branch p11

Version128.8.1-alt1

Published2025-04-16

Max severityCRITICAL

Severity:

Closed issues (2)

CRITICAL10.0

Уязвимость механизма межпроцессорного взаимодействия (IPC) браузера Mozilla Firefox, позволяющая нарушителю обойти существующие ограничения безопасности и выполнить произвольный код

Published: 2025-03-31Modified: 2025-04-01

CVSS 3.xCRITICAL 10.0

CVSS:3.x/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

CVSS 2.0CRITICAL 10.0

CVSS:2.0/AV:N/AC:L/Au:N/C:C/I:C/A:C

References

CRITICAL10.0

Following the recent Chrome sandbox escape (CVE-2025-2783), various Firefox developers identified a similar pattern in our IPC code. A compromised child process could cause the parent process to return an unintentionally powerful handle, leading to a sandbox escape. The original vulnerability was being exploited in the wild. This only affects Firefox on Windows. Other operating systems are unaffected.. This vulnerability was fixed in Firefox 136.0.4, Firefox ESR 128.8.1, and Firefox ESR 115.21.1.

Published: 2025-03-27Modified: 2026-04-13

CVSS 3.xCRITICAL 10.0

CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

References