Red Hat Enterprise Linux 9 update for firefox
| Risk | High |
| Patch available | YES |
| Number of vulnerabilities | 7 |
| CVE-ID | CVE-2025-0238 CVE-2025-0241 CVE-2025-0239 CVE-2025-0243 CVE-2025-0242 CVE-2025-0237 CVE-2025-0240 |
| CWE-ID | CWE-416 CWE-119 CWE-295 CWE-441 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software |
Red Hat Enterprise Linux Server - AUS Operating systems & Components / Operating system Red Hat Enterprise Linux for IBM z Systems - Extended Update Support Operating systems & Components / Operating system Red Hat Enterprise Linux for Power, little endian - Extended Update Support Operating systems & Components / Operating system Red Hat Enterprise Linux for ARM 64 - Extended Update Support Operating systems & Components / Operating system Red Hat Enterprise Linux for x86_64 - Extended Update Support Operating systems & Components / Operating system Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions Operating systems & Components / Operating system package or component firefox (Red Hat package) Operating systems & Components / Operating system package or component |
| Vendor | Red Hat Inc. |
Security Bulletin
This security bulletin contains information about 7 vulnerabilities.
1) Use-after-free
EUVDB-ID: #VU102422
Risk: High
CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]
CVE-ID: CVE-2025-0238
CWE-ID:
CWE-416 - Use After Free
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error when breaking lines in text. A remote attacker can trick the victim into visiting a specially crafted webpage and execute arbitrary code on the system.
Install updates from vendor's website.
Red Hat Enterprise Linux Server - AUS: 9.2
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support: 9.2
Red Hat Enterprise Linux for Power, little endian - Extended Update Support: 9.2
Red Hat Enterprise Linux for ARM 64 - Extended Update Support: 9.2
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions: 9.2
Red Hat Enterprise Linux for x86_64 - Extended Update Support: 9.2
firefox (Red Hat package): before 128.6.0-1.el9_2
CPE2.3- cpe:2.3:o:red_hat:red_hat_enterprise_linux_server_-_aus:9.2:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:o:red_hat:red_hat_enterprise_linux_for_ibm_z_systems_-_extended_update_support:9.2:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:o:red_hat:red_hat_enterprise_linux_for_power_little_endian_-_extended_update_support:9.2:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:o:red_hat:red_hat_enterprise_linux_for_arm_64_-_extended_update_support:9.2:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:o:red_hat:red_hat_enterprise_linux_server_for_ibm_power_le_-_update_services_for_sap_solutions:9.2:*:*:*:*:*:*:*
- cpe:2.3:o:red_hat:red_hat_enterprise_linux_for_x86_64_-_extended_update_support:9.2:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:o:red_hat:firefox_redhat_package:*:*:*:*:*:red_hat_enterprise_linux:*:*
http://access.redhat.com/errata/RHSA-2025:0138
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
2) Buffer overflow
EUVDB-ID: #VU102427
Risk: High
CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]
CVE-ID: CVE-2025-0241
CWE-ID:
CWE-119 - Memory corruption
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error when processing HTML content. A remote attacker can create a specially crafted website, trick the victim into opening it, trigger memory corruption and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
MitigationInstall updates from vendor's website.
Red Hat Enterprise Linux Server - AUS: 9.2
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support: 9.2
Red Hat Enterprise Linux for Power, little endian - Extended Update Support: 9.2
Red Hat Enterprise Linux for ARM 64 - Extended Update Support: 9.2
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions: 9.2
Red Hat Enterprise Linux for x86_64 - Extended Update Support: 9.2
firefox (Red Hat package): before 128.6.0-1.el9_2
CPE2.3- cpe:2.3:o:red_hat:red_hat_enterprise_linux_server_-_aus:9.2:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:o:red_hat:red_hat_enterprise_linux_for_ibm_z_systems_-_extended_update_support:9.2:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:o:red_hat:red_hat_enterprise_linux_for_power_little_endian_-_extended_update_support:9.2:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:o:red_hat:red_hat_enterprise_linux_for_arm_64_-_extended_update_support:9.2:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:o:red_hat:red_hat_enterprise_linux_server_for_ibm_power_le_-_update_services_for_sap_solutions:9.2:*:*:*:*:*:*:*
- cpe:2.3:o:red_hat:red_hat_enterprise_linux_for_x86_64_-_extended_update_support:9.2:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:o:red_hat:firefox_redhat_package:*:*:*:*:*:red_hat_enterprise_linux:*:*
http://access.redhat.com/errata/RHSA-2025:0138
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
3) Improper Certificate Validation
EUVDB-ID: #VU102425
Risk: Medium
CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]
CVE-ID: CVE-2025-0239
CWE-ID:
CWE-295 - Improper Certificate Validation
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform MitM attack.
The vulnerability exists due to Alt-Svc ALPN does not properly validate certificates when the original server is redirecting to an insecure site. A remote attacker can perform MitM attack.
Install updates from vendor's website.
Red Hat Enterprise Linux Server - AUS: 9.2
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support: 9.2
Red Hat Enterprise Linux for Power, little endian - Extended Update Support: 9.2
Red Hat Enterprise Linux for ARM 64 - Extended Update Support: 9.2
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions: 9.2
Red Hat Enterprise Linux for x86_64 - Extended Update Support: 9.2
firefox (Red Hat package): before 128.6.0-1.el9_2
CPE2.3- cpe:2.3:o:red_hat:red_hat_enterprise_linux_server_-_aus:9.2:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:o:red_hat:red_hat_enterprise_linux_for_ibm_z_systems_-_extended_update_support:9.2:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:o:red_hat:red_hat_enterprise_linux_for_power_little_endian_-_extended_update_support:9.2:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:o:red_hat:red_hat_enterprise_linux_for_arm_64_-_extended_update_support:9.2:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:o:red_hat:red_hat_enterprise_linux_server_for_ibm_power_le_-_update_services_for_sap_solutions:9.2:*:*:*:*:*:*:*
- cpe:2.3:o:red_hat:red_hat_enterprise_linux_for_x86_64_-_extended_update_support:9.2:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:o:red_hat:firefox_redhat_package:*:*:*:*:*:red_hat_enterprise_linux:*:*
http://access.redhat.com/errata/RHSA-2025:0138
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
4) Buffer overflow
EUVDB-ID: #VU102428
Risk: High
CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]
CVE-ID: CVE-2025-0243
CWE-ID:
CWE-119 - Memory corruption
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error when processing HTML content. A remote attacker can trick the victim into visiting a specially crafted website, trigger memory corruption and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
MitigationInstall updates from vendor's website.
Red Hat Enterprise Linux Server - AUS: 9.2
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support: 9.2
Red Hat Enterprise Linux for Power, little endian - Extended Update Support: 9.2
Red Hat Enterprise Linux for ARM 64 - Extended Update Support: 9.2
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions: 9.2
Red Hat Enterprise Linux for x86_64 - Extended Update Support: 9.2
firefox (Red Hat package): before 128.6.0-1.el9_2
CPE2.3- cpe:2.3:o:red_hat:red_hat_enterprise_linux_server_-_aus:9.2:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:o:red_hat:red_hat_enterprise_linux_for_ibm_z_systems_-_extended_update_support:9.2:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:o:red_hat:red_hat_enterprise_linux_for_power_little_endian_-_extended_update_support:9.2:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:o:red_hat:red_hat_enterprise_linux_for_arm_64_-_extended_update_support:9.2:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:o:red_hat:red_hat_enterprise_linux_server_for_ibm_power_le_-_update_services_for_sap_solutions:9.2:*:*:*:*:*:*:*
- cpe:2.3:o:red_hat:red_hat_enterprise_linux_for_x86_64_-_extended_update_support:9.2:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:o:red_hat:firefox_redhat_package:*:*:*:*:*:red_hat_enterprise_linux:*:*
http://access.redhat.com/errata/RHSA-2025:0138
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
5) Buffer overflow
EUVDB-ID: #VU102423
Risk: High
CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]
CVE-ID: CVE-2025-0242
CWE-ID:
CWE-119 - Memory corruption
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error when processing HTML content. A remote attacker can trick the victim into visiting a specially crafted website, trigger memory corruption and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
MitigationInstall updates from vendor's website.
Red Hat Enterprise Linux Server - AUS: 9.2
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support: 9.2
Red Hat Enterprise Linux for Power, little endian - Extended Update Support: 9.2
Red Hat Enterprise Linux for ARM 64 - Extended Update Support: 9.2
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions: 9.2
Red Hat Enterprise Linux for x86_64 - Extended Update Support: 9.2
firefox (Red Hat package): before 128.6.0-1.el9_2
CPE2.3- cpe:2.3:o:red_hat:red_hat_enterprise_linux_server_-_aus:9.2:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:o:red_hat:red_hat_enterprise_linux_for_ibm_z_systems_-_extended_update_support:9.2:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:o:red_hat:red_hat_enterprise_linux_for_power_little_endian_-_extended_update_support:9.2:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:o:red_hat:red_hat_enterprise_linux_for_arm_64_-_extended_update_support:9.2:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:o:red_hat:red_hat_enterprise_linux_server_for_ibm_power_le_-_update_services_for_sap_solutions:9.2:*:*:*:*:*:*:*
- cpe:2.3:o:red_hat:red_hat_enterprise_linux_for_x86_64_-_extended_update_support:9.2:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:o:red_hat:firefox_redhat_package:*:*:*:*:*:red_hat_enterprise_linux:*:*
http://access.redhat.com/errata/RHSA-2025:0138
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
6) Unintended Proxy or Intermediary
EUVDB-ID: #VU102424
Risk: Low
CVSSv4.0: 5.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2025-0237
CWE-ID:
CWE-441 - Unintended Proxy or Intermediary ('Confused Deputy')
Exploit availability: No
DescriptionThe vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to WebChannel API does not check the sending principal but rather accepted the principal being sent when transporting data across processes. A local user can perform confused deputy attack and escalate privileges on the system.
Install updates from vendor's website.
Red Hat Enterprise Linux Server - AUS: 9.2
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support: 9.2
Red Hat Enterprise Linux for Power, little endian - Extended Update Support: 9.2
Red Hat Enterprise Linux for ARM 64 - Extended Update Support: 9.2
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions: 9.2
Red Hat Enterprise Linux for x86_64 - Extended Update Support: 9.2
firefox (Red Hat package): before 128.6.0-1.el9_2
CPE2.3- cpe:2.3:o:red_hat:red_hat_enterprise_linux_server_-_aus:9.2:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:o:red_hat:red_hat_enterprise_linux_for_ibm_z_systems_-_extended_update_support:9.2:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:o:red_hat:red_hat_enterprise_linux_for_power_little_endian_-_extended_update_support:9.2:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:o:red_hat:red_hat_enterprise_linux_for_arm_64_-_extended_update_support:9.2:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:o:red_hat:red_hat_enterprise_linux_server_for_ibm_power_le_-_update_services_for_sap_solutions:9.2:*:*:*:*:*:*:*
- cpe:2.3:o:red_hat:red_hat_enterprise_linux_for_x86_64_-_extended_update_support:9.2:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:o:red_hat:firefox_redhat_package:*:*:*:*:*:red_hat_enterprise_linux:*:*
http://access.redhat.com/errata/RHSA-2025:0138
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
7) Use-after-free
EUVDB-ID: #VU102426
Risk: Medium
CVSSv4.0: 4.8 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]
CVE-ID: CVE-2025-0240
CWE-ID:
CWE-416 - Use After Free
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error when parsing a JavaScript module as JSON. A remote attacker can trick the victim into visiting a specially crafted website and execute arbitrary code on the system.
Install updates from vendor's website.
Red Hat Enterprise Linux Server - AUS: 9.2
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support: 9.2
Red Hat Enterprise Linux for Power, little endian - Extended Update Support: 9.2
Red Hat Enterprise Linux for ARM 64 - Extended Update Support: 9.2
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions: 9.2
Red Hat Enterprise Linux for x86_64 - Extended Update Support: 9.2
firefox (Red Hat package): before 128.6.0-1.el9_2
CPE2.3- cpe:2.3:o:red_hat:red_hat_enterprise_linux_server_-_aus:9.2:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:o:red_hat:red_hat_enterprise_linux_for_ibm_z_systems_-_extended_update_support:9.2:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:o:red_hat:red_hat_enterprise_linux_for_power_little_endian_-_extended_update_support:9.2:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:o:red_hat:red_hat_enterprise_linux_for_arm_64_-_extended_update_support:9.2:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:o:red_hat:red_hat_enterprise_linux_server_for_ibm_power_le_-_update_services_for_sap_solutions:9.2:*:*:*:*:*:*:*
- cpe:2.3:o:red_hat:red_hat_enterprise_linux_for_x86_64_-_extended_update_support:9.2:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:o:red_hat:firefox_redhat_package:*:*:*:*:*:red_hat_enterprise_linux:*:*
http://access.redhat.com/errata/RHSA-2025:0138
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
